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Fu F, Wang J, Tan Y, Yu J. Super-Hydrophilic Zwitterionic Polymer Surface Modification Facilitates Liquid Transportation of Microfluidic Sweat Sensors. Macromol Rapid Commun 2021; 43:e2100776. [PMID: 34825435 DOI: 10.1002/marc.202100776] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Indexed: 12/16/2022]
Abstract
The transportation of sweat in an epidermal sweat sensor is critical for the monitoring of biochemical compositions of human sweat. However, it is still a challenge to engineer microfluidic devices with super-wetting channels for such epidermal sweat sensors. Herein, a zwitterionic poly (2-methacryloyloxyethyl phosphorylcholine) (PMPC) modified microfluidic device with super-wetting and good liquid transport ability via an azo coupling reaction of PMPC onto the surface of polydimethylsiloxane microfluidic devices is reported. The obtained PMPC-modified microfluidic device can be integrated with flexible electrochemical sensor to measure the ion compositions of human sweat in real-time. The super-hydrophilic zwitterionic polymer surface modification can greatly facilitate the transportation of body fluids in microfluidic sensors for the detection of various biomarkers. Such microfluidic sensors have great potential for next-generation personalized healthcare.
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Affiliation(s)
- Fanfan Fu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing, 210094, China.,School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Jilei Wang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yurong Tan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Jing Yu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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152
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Xiong Z, Achavananthadith S, Lian S, Madden LE, Ong ZX, Chua W, Kalidasan V, Li Z, Liu Z, Singh P, Yang H, Heussler SP, Kalaiselvi SMP, Breese MBH, Yao H, Gao Y, Sanmugam K, Tee BCK, Chen PY, Loke W, Lim CT, Chiang GSH, Tan BY, Li H, Becker DL, Ho JS. A wireless and battery-free wound infection sensor based on DNA hydrogel. SCIENCE ADVANCES 2021; 7:eabj1617. [PMID: 34797719 PMCID: PMC8604401 DOI: 10.1126/sciadv.abj1617] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The confluence of wireless technology and biosensors offers the possibility to detect and manage medical conditions outside of clinical settings. Wound infections represent a major clinical challenge in which timely detection is critical for effective interventions, but this is currently hindered by the lack of a monitoring technology that can interface with wounds, detect pathogenic bacteria, and wirelessly transmit data. Here, we report a flexible, wireless, and battery-free sensor that provides smartphone-based detection of wound infection using a bacteria-responsive DNA hydrogel. The engineered DNA hydrogels respond selectively to deoxyribonucleases associated with pathogenic bacteria through tunable dielectric changes, which can be wirelessly detected using near-field communication. In a mouse acute wound model, we demonstrate that the wireless sensor can detect physiologically relevant amounts of Staphylococcus aureus even before visible manifestation of infection. These results demonstrate strategies for continuous infection monitoring, which may facilitate improved management of surgical or chronic wounds.
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Affiliation(s)
- Ze Xiong
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore 117599, Singapore
- The N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore
- Corresponding author. (Z.X.); (J.S.H.)
| | - Sippanat Achavananthadith
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Sophie Lian
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Leigh Edward Madden
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Skin Research Institute of Singapore, Singapore 308232, Singapore
| | - Zi Xin Ong
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Skin Research Institute of Singapore, Singapore 308232, Singapore
- Nanyang Institute of Technology in Health and Medicine, Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore 637335, Singapore
| | - Wisely Chua
- Institute of Molecular and Cell Biology, A*STAR, Singapore 138669, Singapore
| | - Viveka Kalidasan
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Zhipeng Li
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Zhu Liu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Priti Singh
- Faculty of Dentistry, National University of Singapore, Singapore 119085, Singapore
| | - Haitao Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | | | - S. M. P. Kalaiselvi
- Singapore Synchrotron Light Source, National University of Singapore, Singapore 117603, Singapore
| | - Mark B. H. Breese
- Singapore Synchrotron Light Source, National University of Singapore, Singapore 117603, Singapore
| | - Haicheng Yao
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Yuji Gao
- Institute for Health Innovation and Technology, National University of Singapore, Singapore 117599, Singapore
| | | | - Benjamin C. K. Tee
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore 117599, Singapore
- The N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
- Graduate School of Integrative Sciences and Engineering, National University of Singapore, Singapore 117456, Singapore
| | - Po-Yen Chen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Weiqiang Loke
- Faculty of Dentistry, National University of Singapore, Singapore 119085, Singapore
| | - Chwee Teck Lim
- Institute for Health Innovation and Technology, National University of Singapore, Singapore 117599, Singapore
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583, Singapore
- Graduate School of Integrative Sciences and Engineering, National University of Singapore, Singapore 117456, Singapore
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore
| | | | | | - Hao Li
- Nanyang Institute of Technology in Health and Medicine, Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore 637335, Singapore
- Department of Chemistry, National University of Singapore, Singapore 117544, Singapore
| | - David Laurence Becker
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Skin Research Institute of Singapore, Singapore 308232, Singapore
| | - John S. Ho
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore 117599, Singapore
- The N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore
- Graduate School of Integrative Sciences and Engineering, National University of Singapore, Singapore 117456, Singapore
- Corresponding author. (Z.X.); (J.S.H.)
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153
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Ishac D, Matta S, Bin S, Aziz H, Karam E, Abche A, Nassar G. Objective Assessment of Covid-19 Severity Affecting the Vocal and Respiratory System Using a Wearable, Autonomous Sound Collar. Cell Mol Bioeng 2021; 15:67-86. [PMID: 34777597 PMCID: PMC8570400 DOI: 10.1007/s12195-021-00712-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 10/11/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction Since the outbreak began in January 2020, Covid-19 has affected more than 161 million people worldwide and resulted in about 3.3 million deaths. Despite efforts to detect human infection with the virus as early as possible, the confirmatory test still requires the analysis of sputum or blood with estimated results available within approximately 30 minutes; this may potentially be followed by clinical referral if the patient shows signs of aggravated pneumonia. This work aims to implement a soft collar as a sound device dedicated to the objective evaluation of the pathophysiological state resulting from dysphonia of laryngeal origin or respiratory failure of inflammatory origin, in particular caused by Covid-19. Methods In this study, we exploit the vibrations of waves generated by the vocal and respiratory system of 30 people. A biocompatible acoustic sensor embedded in a soft collar around the neck collects these waves. The collar is also equipped with thermal sensors and a cross-data analysis module in both the temporal and frequency domains (STFT). The optimal coupling conditions and the electrical and dimensional characteristics of the sensors were defined based on a mathematical approach using a matrix formalism. Results The characteristics of the signals in the time domain combined with the quantities obtained from the STFT offer multidimensional information and a decision support tool for determining a pathophysiological state representative of the symptoms explored. The device, tested on 30 people, was able to differentiate patients with mild symptoms from those who had developed acute signs of respiratory failure on a severity scale of 1 to 10. Conclusion With the health constraints imposed by the effects of Covid-19, the heavy organization to be implemented resulting from the flow of diagnostics, tests and clinical management, it was urgent to develop innovative and safe biomedical technologies. This passive listening technique will contribute to the non-invasive assessment and dynamic observation of lesions. Moreover, it merits further examination to provide support for medical operators to improve clinical management. Supplementary Information The online version contains supplementary material available at 10.1007/s12195-021-00712-w.
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Affiliation(s)
- D Ishac
- Electrical Engineering Department, University of Balamand (UOB), Balamand, Lebanon
| | - S Matta
- Electrical Engineering Department, University of Balamand (UOB), Balamand, Lebanon
| | - S Bin
- College of Physics, University of Qingdao, Qingdao, China
| | - H Aziz
- Department of Pulmonary Pathology, Sahlgrenska University Hospital, Göteborg, Sweden
| | - E Karam
- Electrical Engineering Department, University of Balamand (UOB), Balamand, Lebanon
| | - A Abche
- Electrical Engineering Department, University of Balamand (UOB), Balamand, Lebanon
| | - G Nassar
- IEMN - CNRS UMR 8520-INSA (HdF)-Lille academic, Lille, France
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154
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Tufan TB, Sen D, Guler U. An Infra-Red-Based Prototype for a Miniaturized Transcutaneous Carbon Dioxide Monitor. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2021; 2021:7132-7135. [PMID: 34892745 DOI: 10.1109/embc46164.2021.9630469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
New types of miniaturized biomedical devices transform contemporary diagnostic and therapeutic techniques in medicine. This evolution has demonstrated exceptional promise in providing infrastructures for enabling precision health by creating diverse sensing modalities. To this end, this paper presents a prototype for transcutaneous carbon dioxide monitoring to diversify the measurable critical parameters for human health. Transcutaneous carbon dioxide monitoring is a noninvasive, surrogate method of assessing the partial pressure of carbon dioxide in the blood. The partial pressure of carbon dioxide is a vital index that can help understand momentarily changing ventilation trends. Therefore, it needs to be reported continuously to monitor the ventilatory status of critically ill patients. The proposed prototype employs an infrared LED as the excitation source. The infrared emission, which decreases in response to an increasing carbon dioxide concentration, is applied to a thermopile sensor that can detect the infrared intensity variations precisely. We have measured the changes in the partial pressure of carbon dioxide in the range of 0-120 mmHg, which covers humans' typical values, 35-45 mmHg. The prototype occupies an area of 25 cm2 (50 mm × 50 mm) and consumes 85 mW power.
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155
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Kwak SS, Yoo S, Avila R, Chung HU, Jeong H, Liu C, Vogl JL, Kim J, Yoon HJ, Park Y, Ryu H, Lee G, Kim J, Koo J, Oh YS, Kim S, Xu S, Zhao Z, Xie Z, Huang Y, Rogers JA. Skin-Integrated Devices with Soft, Holey Architectures for Wireless Physiological Monitoring, With Applications in the Neonatal Intensive Care Unit. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2103974. [PMID: 34510572 DOI: 10.1002/adma.202103974] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/28/2021] [Indexed: 06/13/2023]
Abstract
Continuous monitoring of vital signs is an essential aspect of operations in neonatal and pediatric intensive care units (NICUs and PICUs), of particular importance to extremely premature and/or critically ill patients. Current approaches require multiple sensors taped to the skin and connected via hard-wired interfaces to external data acquisition electronics. The adhesives can cause iatrogenic injuries to fragile, underdeveloped skin, and the wires can complicate even the most routine tasks in patient care. Here, materials strategies and design concepts are introduced that significantly improve these platforms through the use of optimized materials, open (i.e., "holey") layouts and precurved designs. These schemes 1) reduce the stresses at the skin interface, 2) facilitate release of interfacial moisture from transepidermal water loss, 3) allow visual inspection of the skin for rashes or other forms of irritation, 4) enable triggered reduction of adhesion to reduce the probability for injuries that can result from device removal. A combination of systematic benchtop testing and computational modeling identifies the essential mechanisms and key considerations. Demonstrations on adult volunteers and on a neonate in an operating NICUs illustrate a broad range of capabilities in continuous, clinical-grade monitoring of conventional vital signs, and unconventional indicators of health status.
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Affiliation(s)
- Sung Soo Kwak
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Seonggwang Yoo
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Raudel Avila
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | | | - Hyoyoung Jeong
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Claire Liu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Jamie L Vogl
- Division of Pediatric Autonomic Medicine, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA
| | - Joohee Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Hong-Joon Yoon
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Yoonseok Park
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Hanjun Ryu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Geumbee Lee
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Jihye Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Jahyun Koo
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, 02841, Republic of Korea
| | - Yong Suk Oh
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Sungbong Kim
- Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL, 61801, USA
| | - Shuai Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Sibel Health, Niles, IL, 60714, USA
- Department of Dermatology, Division of Dermatology, Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Zichen Zhao
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, 116024, China
- Ningbo Institute of Dalian University of Technology, Ningbo, 315016, China
| | - Zhaoqian Xie
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, 116024, China
- Ningbo Institute of Dalian University of Technology, Ningbo, 315016, China
| | - Yonggang Huang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, 60208, USA
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156
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Pyo S, Lee J, Bae K, Sim S, Kim J. Recent Progress in Flexible Tactile Sensors for Human-Interactive Systems: From Sensors to Advanced Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005902. [PMID: 33887803 DOI: 10.1002/adma.202005902] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 11/07/2020] [Indexed: 05/27/2023]
Abstract
Flexible tactile sensors capable of measuring mechanical stimuli via physical contact have attracted significant attention in the field of human-interactive systems. The utilization of tactile information can complement vision and/or sound interaction and provide new functionalities. Recent advancements in micro/nanotechnology, material science, and information technology have resulted in the development of high-performance tactile sensors that reach and even surpass the tactile sensing ability of human skin. Here, important advances in flexible tactile sensors over recent years are summarized, from sensor designs to system-level applications. This review focuses on the representative strategies based on design and material configurations for improving key performance parameters including sensitivity, detection range/linearity, response time/hysteresis, spatial resolution/crosstalk, multidirectional force detection, and insensitivity to other stimuli. System-level integration for practical applications beyond conceptual prototypes and promising applications, such as artificial electronic skin for robotics and prosthetics, wearable controllers for electronics, and bidirectional communication tools, are also discussed. Finally, perspectives on issues regarding further advances are provided.
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Affiliation(s)
- Soonjae Pyo
- Department of Mechanical System Design Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Republic of Korea
| | - Jaeyong Lee
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Kyubin Bae
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Sangjun Sim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jongbaeg Kim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
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157
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Fang Y, Yang X, Lin Y, Shi J, Prominski A, Clayton C, Ostroff E, Tian B. Dissecting Biological and Synthetic Soft-Hard Interfaces for Tissue-Like Systems. Chem Rev 2021; 122:5233-5276. [PMID: 34677943 DOI: 10.1021/acs.chemrev.1c00365] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Soft and hard materials at interfaces exhibit mismatched behaviors, such as mismatched chemical or biochemical reactivity, mechanical response, and environmental adaptability. Leveraging or mitigating these differences can yield interfacial processes difficult to achieve, or inapplicable, in pure soft or pure hard phases. Exploration of interfacial mismatches and their associated (bio)chemical, mechanical, or other physical processes may yield numerous opportunities in both fundamental studies and applications, in a manner similar to that of semiconductor heterojunctions and their contribution to solid-state physics and the semiconductor industry over the past few decades. In this review, we explore the fundamental chemical roles and principles involved in designing these interfaces, such as the (bio)chemical evolution of adaptive or buffer zones. We discuss the spectroscopic, microscopic, (bio)chemical, and computational tools required to uncover the chemical processes in these confined or hidden soft-hard interfaces. We propose a soft-hard interaction framework and use it to discuss soft-hard interfacial processes in multiple systems and across several spatiotemporal scales, focusing on tissue-like materials and devices. We end this review by proposing several new scientific and engineering approaches to leveraging the soft-hard interfacial processes involved in biointerfacing composites and exploring new applications for these composites.
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Affiliation(s)
- Yin Fang
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Xiao Yang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Yiliang Lin
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
| | - Jiuyun Shi
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
| | - Aleksander Prominski
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
| | - Clementene Clayton
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Ellie Ostroff
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Bozhi Tian
- The James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.,Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States.,The Institute for Biophysical Dynamics, University of Chicago, Chicago, Illinois 60637, United States
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158
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Stuart T, Kasper KA, Iwerunmor IC, McGuire DT, Peralta R, Hanna J, Johnson M, Farley M, LaMantia T, Udorvich P, Gutruf P. Biosymbiotic, personalized, and digitally manufactured wireless devices for indefinite collection of high-fidelity biosignals. SCIENCE ADVANCES 2021; 7:eabj3269. [PMID: 34623919 PMCID: PMC8500520 DOI: 10.1126/sciadv.abj3269] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 08/16/2021] [Indexed: 05/12/2023]
Abstract
Digital medicine, the ability to stream continuous information from the body to gain insight into health status, manage disease, and predict onset health problems, is only gradually developing. Key technological hurdles that slow the proliferation of this approach are means by which clinical grade biosignals are continuously obtained without frequent user interaction. To overcome these hurdles, solutions in power supply and interface strategies that maintain high-fidelity readouts chronically are critical. This work introduces a previously unexplored class of devices that overcomes the limitations using digital manufacturing to tailor geometry, mechanics, electromagnetics, electronics, and fluidics to create unique personalized devices optimized to the wearer. These elastomeric, three-dimensional printed, and laser-structured constructs, called biosymbiotic devices, enable adhesive-free interfaces and the inclusion of high-performance, far-field energy harvesting to facilitate continuous wireless and battery-free operation of multimodal and multidevice, high-fidelity biosensing in an at-home setting without user interaction.
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Affiliation(s)
- Tucker Stuart
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Kevin Albert Kasper
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | | | - Dylan Thomas McGuire
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Roberto Peralta
- Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Jessica Hanna
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Megan Johnson
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Max Farley
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Thomas LaMantia
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Paul Udorvich
- Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721, USA
| | - Philipp Gutruf
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721, USA
- Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721, USA
- Bio5 Institute, University of Arizona, Tucson, AZ 85721, USA
- Neroscience GIDP, University of Arizona, Tucson, AZ 85721, USA
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159
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Jin P, Fu J, Wang F, Zhang Y, Wang P, Liu X, Jiao Y, Li H, Chen Y, Ma Y, Feng X. A flexible, stretchable system for simultaneous acoustic energy transfer and communication. SCIENCE ADVANCES 2021; 7:eabg2507. [PMID: 34586839 PMCID: PMC8480923 DOI: 10.1126/sciadv.abg2507] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 08/06/2021] [Indexed: 05/02/2023]
Abstract
The use of implantable medical devices, including cardiac pacemakers and brain pacemakers, is becoming increasingly prevalent. However, surgically replacing batteries owing to their limited lifetime is a drawback of those devices. Such an operation poses a risk to patients—a problem that, to date, has not yet been solved. Furthermore, current devices are large and rigid, potentially causing patient discomfort after implantation. To address this problem, we developed a thin, battery-free, flexible, implantable system based on flexible electronic technology that can not only achieve wireless recharging and communication simultaneously via ultrasound but also perform many current device functions, including in vivo physiological monitoring and cardiac pacing. To prove this, an animal experiment was conducted involving creating a cardiac arrest model and powering the system by ultrasound. The results showed that it automatically detected abnormal heartbeats and responded by electrically stimulating the heart, demonstrating the device’s potential clinical utility for emergent treatment.
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Affiliation(s)
- Peng Jin
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Ji Fu
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Fengle Wang
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Yingchao Zhang
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Peng Wang
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Xin Liu
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Yang Jiao
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Hangfei Li
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Ying Chen
- Institute of Flexible Electronics Technology of THU Jiaxing, Zhejiang 314000, China
- Qiantang Science and Technology Innovation Center, Hangzhou 310016, China
| | - Yinji Ma
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Xue Feng
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
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160
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Lyu W, Ma Y, Chen S, Li H, Wang P, Chen Y, Feng X. Flexible Ultrasonic Patch for Accelerating Chronic Wound Healing. Adv Healthc Mater 2021; 10:e2100785. [PMID: 34212532 DOI: 10.1002/adhm.202100785] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/28/2021] [Indexed: 12/20/2022]
Abstract
Ultrasound treatment is an effective method for accelerating chronic wound healing. However, it is not widely used because traditional ultrasonic probes cannot be conformal to the wound surface, which leads to limitations of use and unstable treatment effects. In addition, the use of liquid coupling agent increases the chance of wound infection. A strategy is proposed to design and fabricate a flexible ultrasonic patch for treating chronic wounds effectively. The piezoelectric ceramic in the patch is discretized into several linearly arranged units, which are integrated on a flexible circuit substrate. A thin hydrogel patch is used as both encapsulation and coupling layer to avoid wound infection and ensure the penetration of ultrasound. The ultrasonic patch is soft, light, and can completely conform to the treatment area. Bending of the patch focuses the sound beams on the center of the bending circle, which achieves control of the target treatment area. Ultrasound treatment experiments are carried out on some type-II diabetic rats. Immunohistochemical (IHC) results indicate that ultrasound accelerates wound healing by activating Rac1 in both dermal and epidermal layers. Treatment results show that wound treated with the ultrasound heals faster than wounds without. The healing time is shortened by ≈40%.
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Affiliation(s)
- Wenhan Lyu
- AML Department of Engineering Mechanics Tsinghua University Beijing 100084 China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 China
| | - Yinji Ma
- AML Department of Engineering Mechanics Tsinghua University Beijing 100084 China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 China
| | - Siyu Chen
- AML Department of Engineering Mechanics Tsinghua University Beijing 100084 China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 China
| | - Haibo Li
- AML Department of Engineering Mechanics Tsinghua University Beijing 100084 China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 China
| | - Peng Wang
- AML Department of Engineering Mechanics Tsinghua University Beijing 100084 China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 China
| | - Ying Chen
- Institute of Flexible Electronics Technology THU Jiaxing 314000 China
- Qiantang Science and Technology Innovation Center Hangzhou 310016 China
| | - Xue Feng
- AML Department of Engineering Mechanics Tsinghua University Beijing 100084 China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 China
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161
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Tang R, Lu F, Liu L, Yan Y, Du Q, Zhang B, Zhou T, Fu H. Flexible pressure sensors with microstructures. NANO SELECT 2021. [DOI: 10.1002/nano.202100003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ruitao Tang
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
| | - Fangyuan Lu
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
| | - Lanlan Liu
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
| | - Yu Yan
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
| | - Qifeng Du
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
| | - Bocheng Zhang
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
| | - Tao Zhou
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
| | - Haoran Fu
- Frontier Research Center Institute of flexible electronics technology of THU Zhejiang Jiaxing 314006 China
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162
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Zhao D, Zhao J, Liu L, Guo W, Zhu K, Yang G, Li Z, Wu H. Flexible hybrid integration enabled on-skin electronics for wireless monitoring of electrophysiology and motion. IEEE Trans Biomed Eng 2021; 69:1340-1348. [PMID: 34596530 DOI: 10.1109/tbme.2021.3115464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
On-skin electronics are promising in human motion and vital sign monitoring, disease diagnosis and treatment. On-skin systems are soft and stretchable, and can maintain electrical performances during bending, stretching or twisting, etc. However, current integrated circuit based fabrication processes are not compatible with stretchable substrate, and recently proposed flexible hybrid integration methods typically involve complicated fabrication processes or structural design, and do not support high integration density. Herein, we report a series of flexible hybrid integration strategies which endow the on-skin electronics with advantages of high integration density of electric components, facile fabrications, high stretchability and reliability. Proposed strategies include: 1. High I/O density with highly stretchable and conductive composite materials as interconnects; 2. Multi-layer structures enabled by stretchable and conductive via-holes; 3. High reliability approach for chip attachment onto stretchable substrate; 4. Design and fabrication of strain separation structure. Based on these methods, an on-skin flexible hybrid electronic system (FHES) is fabricated to collect electrocardiogram (ECG) and acceleration data, wirelessly transmit and display the data in real time on a mobile phone application through Bluetooth communication. We also verify the accuracy and stability of the FHES through the measurements of ECG and acceleration data from human skin under various conditions. The flexible hybrid integration schemes proposed can be adopted for the development of a variety of on-skin systems for biomedical applications.
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163
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Kalidasan V, Yang X, Xiong Z, Li RR, Yao H, Godaba H, Obuobi S, Singh P, Guan X, Tian X, Kurt SA, Li Z, Mukherjee D, Rajarethinam R, Chong CS, Wang JW, Ee PLR, Loke W, Tee BCK, Ouyang J, Charles CJ, Ho JS. Wirelessly operated bioelectronic sutures for the monitoring of deep surgical wounds. Nat Biomed Eng 2021; 5:1217-1227. [PMID: 34654900 DOI: 10.1038/s41551-021-00802-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 09/02/2021] [Indexed: 02/07/2023]
Abstract
Monitoring surgical wounds post-operatively is necessary to prevent infection, dehiscence and other complications. However, the monitoring of deep surgical sites is typically limited to indirect observations or to costly radiological investigations that often fail to detect complications before they become severe. Bioelectronic sensors could provide accurate and continuous monitoring from within the body, but the form factors of existing devices are not amenable to integration with sensitive wound tissues and to wireless data transmission. Here we show that multifilament surgical sutures functionalized with a conductive polymer and incorporating pledgets with capacitive sensors operated via radiofrequency identification can be used to monitor physicochemical states of deep surgical sites. We show in live pigs that the sutures can monitor wound integrity, gastric leakage and tissue micromotions, and in rodents that the healing outcomes are equivalent to those of medical-grade sutures. Battery-free wirelessly operated bioelectronic sutures may facilitate post-surgical monitoring in a wide range of interventions.
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Affiliation(s)
- Viveka Kalidasan
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
| | - Xin Yang
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Ze Xiong
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore. .,Institute for Health Innovation and Technology, National University of Singapore, Singapore, Singapore. .,The N.1 Institute for Health, National University of Singapore, Singapore, Singapore.
| | - Renee R Li
- Cardiovascular Research Institute, National University Heart Centre, Singapore, Singapore.,Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Haicheng Yao
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Hareesh Godaba
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Sybil Obuobi
- Department of Pharmacy, National University of Singapore, Singapore, Singapore.,Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Priti Singh
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore
| | - Xin Guan
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Xi Tian
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Selman A Kurt
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Zhipeng Li
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Devika Mukherjee
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Ravisankar Rajarethinam
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
| | - Choon Seng Chong
- Department of Surgery, National University Hospital, Singapore, Singapore
| | - Jiong-Wei Wang
- Cardiovascular Research Institute, National University Heart Centre, Singapore, Singapore.,Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Pui Lai Rachel Ee
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Weiqiang Loke
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore
| | - Benjamin C K Tee
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, Singapore.,The N.1 Institute for Health, National University of Singapore, Singapore, Singapore.,Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Jianyong Ouyang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Christopher J Charles
- Cardiovascular Research Institute, National University Heart Centre, Singapore, Singapore.,Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Christchurch Heart Institute, Department of Medicine, University of Otago, Christchurch, New Zealand
| | - John S Ho
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore. .,Institute for Health Innovation and Technology, National University of Singapore, Singapore, Singapore. .,The N.1 Institute for Health, National University of Singapore, Singapore, Singapore.
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164
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Wunderlich H, Kozielski KL. Next generation material interfaces for neural engineering. Curr Opin Biotechnol 2021; 72:29-38. [PMID: 34601203 DOI: 10.1016/j.copbio.2021.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 08/06/2021] [Accepted: 09/07/2021] [Indexed: 11/28/2022]
Abstract
Neural implant technology is rapidly progressing, and gaining broad interest in research fields such as electrical engineering, materials science, neurobiology, and data science. As the potential applications of neural devices have increased, new technologies to make neural intervention longer-lasting and less invasive have brought attention to neural interface engineering. This review will focus on recent developments in materials for neural implants, highlighting new technologies in the fields of soft electrodes, mechanical and chemical engineering of interface coatings, and remotely powered devices. In this context, novel implantation strategies, manufacturing methods, and combinatorial device functions will also be discussed.
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Affiliation(s)
- Hannah Wunderlich
- Department of Bioengineering and Biosystems, Institute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Kristen L Kozielski
- Department of Electrical and Computer Engineering, Technical University of Munich, Munich, Germany.
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165
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Three-dimensional electronic microfliers inspired by wind-dispersed seeds. Nature 2021; 597:503-510. [PMID: 34552257 DOI: 10.1038/s41586-021-03847-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 07/22/2021] [Indexed: 11/08/2022]
Abstract
Large, distributed collections of miniaturized, wireless electronic devices1,2 may form the basis of future systems for environmental monitoring3, population surveillance4, disease management5 and other applications that demand coverage over expansive spatial scales. Aerial schemes to distribute the components for such networks are required, and-inspired by wind-dispersed seeds6-we examined passive structures designed for controlled, unpowered flight across natural environments or city settings. Techniques in mechanically guided assembly of three-dimensional (3D) mesostructures7-9 provide access to miniature, 3D fliers optimized for such purposes, in processes that align with the most sophisticated production techniques for electronic, optoelectronic, microfluidic and microelectromechanical technologies. Here we demonstrate a range of 3D macro-, meso- and microscale fliers produced in this manner, including those that incorporate active electronic and colorimetric payloads. Analytical, computational and experimental studies of the aerodynamics of high-performance structures of this type establish a set of fundamental considerations in bio-inspired design, with a focus on 3D fliers that exhibit controlled rotational kinematics and low terminal velocities. An approach that represents these complex 3D structures as discrete numbers of blades captures the essential physics in simple, analytical scaling forms, validated by computational and experimental results. Battery-free, wireless devices and colorimetric sensors for environmental measurements provide simple examples of a wide spectrum of applications of these unusual concepts.
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166
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Wang H, Wang J, Yao K, Fu J, Xia X, Zhang R, Li J, Xu G, Wang L, Yang J, Lai J, Dai Y, Zhang Z, Li A, Zhu Y, Yu X, Wang ZL, Zi Y. A paradigm shift fully self-powered long-distance wireless sensing solution enabled by discharge-induced displacement current. SCIENCE ADVANCES 2021; 7:eabi6751. [PMID: 34550743 PMCID: PMC8457664 DOI: 10.1126/sciadv.abi6751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 08/02/2021] [Indexed: 06/01/2023]
Abstract
The rapid development of the Internet of Things depends on wireless devices and their network. Traditional wireless sensing and transmission technology still requires multiple modules for sensing, signal modulation, transmission, and power, making the whole system bulky, rigid, and costly. Here, we proposed a paradigm shift wireless sensing solution based on the breakdown discharge–induced displacement current. Through that, we can combine the abovementioned functional modules in a single unit of self-powered wireless sensing e-sticker (SWISE), which features a small size (down to 9 mm by 9 mm) and long effective transmission distance (>30 m) when compared to existing wireless sensing technologies. Furthermore, SWISEs have functions of multipoint motion sensing and gas detection in fully self-powered manner. This work proposes a solution for flexible self-powered wireless sensing platforms, which shows great potential for implantable and wearable electronics, robotics, health care, infrastructure monitoring, human-machine interface, virtual reality, etc.
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Affiliation(s)
- Haoyu Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Jiaqi Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
- School of Marine Sciences, Sun Yat-Sen University, Zhuhai, Guangdong 519082, China
| | - Kuanming Yao
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong, China
| | - Jingjing Fu
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Xin Xia
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Ruirui Zhang
- Tencent Robotics X, Shenzhen, Guangdong 518054, China
| | - Jiyu Li
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong, China
| | - Guoqiang Xu
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Lingyun Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Jingchao Yang
- Tencent Robotics X, Shenzhen, Guangdong 518054, China
| | - Jie Lai
- Tencent Robotics X, Shenzhen, Guangdong 518054, China
| | - Yuan Dai
- Tencent Robotics X, Shenzhen, Guangdong 518054, China
| | | | - Anyin Li
- Department of Chemistry, University of New Hampshire, Durham, NH 03824, USA
| | - Yuyan Zhu
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Xinge Yu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong, China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China
| | - Yunlong Zi
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
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167
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Zhang W, Liu Q, Chao S, Liu R, Cui X, Sun Y, Ouyang H, Li Z. Ultrathin Stretchable Triboelectric Nanogenerators Improved by Postcharging Electrode Material. ACS APPLIED MATERIALS & INTERFACES 2021; 13:42966-42976. [PMID: 34473476 DOI: 10.1021/acsami.1c13840] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Sustainable ultrathin stretchable power sources have emerged with the development of wearable electronics. They obtain energy from living organisms and the environment to drive these wearable electronics. Here, an ultrathin stretchable and triboelectric nanogenerator (TENG) improved by chargeable carbon black (CB)/thermoplastic polyurethane (TPU) composite material (CT-TENG) is proposed for mechanical energy harvesting and physiological signal sensing. The CB/TPU composite can act as both a stretchable electrode and a triboelectric layer due to the coexistence of conductive CB and dielectric TPU. The CT-TENG demonstrates good stretchability (≈646%), ultrathin thickness (≈50 μm), and a lightweight (≈62 mg). The triboelectric electrode material can be improved by postcharging treatment. With the corona charging process, the output performance of the CT-TENG was improved eightfold and reached 41 V. Moreover, the CT-TENG with a self-powered sensing capability can inspect the amplitude and frequency of different physiological movements. Consequently, the CT-TENG is promising in promoting the development of electronic skins, wearable systems of self-powered sensors, human-machine interactions, soft robotics, and artificial intelligence applications.
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Affiliation(s)
- Weiyi Zhang
- School of Microelectronics, Tianjin University, No. 92 Weijin Road, Tianjin 300072, People's Republic of China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, No. 8 Yangyandongyi Road, Beijing 101400, People's Republic of China
| | - Qiang Liu
- School of Microelectronics, Tianjin University, No. 92 Weijin Road, Tianjin 300072, People's Republic of China
| | - Shengyu Chao
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, No. 8 Yangyandongyi Road, Beijing 101400, People's Republic of China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing 100049, People's Republic of China
| | - Ruping Liu
- Beijing Institute of Graphic Communication, No.1 (Band-2) Xinghua Street, Daxing District, Beijing 102600, People's Republic of China
| | - Xi Cui
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, No. 8 Yangyandongyi Road, Beijing 101400, People's Republic of China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing 100049, People's Republic of China
| | - Yu Sun
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, No. 8 Yangyandongyi Road, Beijing 101400, People's Republic of China
| | - Han Ouyang
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing 100049, People's Republic of China
- Key Laboratory for Biomechanics and Mechanobiology of Chinese Education Ministry, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100083, People's Republic of China
| | - Zhou Li
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, No. 8 Yangyandongyi Road, Beijing 101400, People's Republic of China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing 100049, People's Republic of China
- Center on Nanoenergy Research School of Physical Science and Technology, Guangxi University, No. 100, East University Road, Nanning 530004, People's Republic of China
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168
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Bunea AC, Dediu V, Laszlo EA, Pistriţu F, Carp M, Iliescu FS, Ionescu ON, Iliescu C. E-Skin: The Dawn of a New Era of On-Body Monitoring Systems. MICROMACHINES 2021; 12:1091. [PMID: 34577734 PMCID: PMC8470991 DOI: 10.3390/mi12091091] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/01/2021] [Accepted: 09/08/2021] [Indexed: 12/13/2022]
Abstract
Real-time "on-body" monitoring of human physiological signals through wearable systems developed on flexible substrates (e-skin) is the next target in human health control and prevention, while an alternative to bulky diagnostic devices routinely used in clinics. The present work summarizes the recent trends in the development of e-skin systems. Firstly, we revised the material development for e-skin systems. Secondly, aspects related to fabrication techniques were presented. Next, the main applications of e-skin systems in monitoring, such as temperature, pulse, and other bio-electric signals related to health status, were analyzed. Finally, aspects regarding the power supply and signal processing were discussed. The special features of e-skin as identified contribute clearly to the developing potential as in situ diagnostic tool for further implementation in clinical practice at patient personal levels.
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Affiliation(s)
- Alina-Cristina Bunea
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
| | - Violeta Dediu
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
| | - Edwin Alexandru Laszlo
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
| | - Florian Pistriţu
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
| | - Mihaela Carp
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
| | - Florina Silvia Iliescu
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
| | - Octavian Narcis Ionescu
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
- Faculty of Electrical and Mechanical Engineering, Petroleum-Gas University of Ploiesti, 100680 Ploiesti, Romania
| | - Ciprian Iliescu
- National Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, Romania; (A.-C.B.); (V.D.); (E.A.L.); (F.P.); (M.C.); (F.S.I.); (O.N.I.)
- Academy of Romanian Scientists, 010071 Bucharest, Romania
- Faculty of Applied Chemistry and Materials Science, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
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169
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Wen F, Zhang Z, He T, Lee C. AI enabled sign language recognition and VR space bidirectional communication using triboelectric smart glove. Nat Commun 2021; 12:5378. [PMID: 34508076 PMCID: PMC8433305 DOI: 10.1038/s41467-021-25637-w] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 08/23/2021] [Indexed: 02/08/2023] Open
Abstract
Sign language recognition, especially the sentence recognition, is of great significance for lowering the communication barrier between the hearing/speech impaired and the non-signers. The general glove solutions, which are employed to detect motions of our dexterous hands, only achieve recognizing discrete single gestures (i.e., numbers, letters, or words) instead of sentences, far from satisfying the meet of the signers' daily communication. Here, we propose an artificial intelligence enabled sign language recognition and communication system comprising sensing gloves, deep learning block, and virtual reality interface. Non-segmentation and segmentation assisted deep learning model achieves the recognition of 50 words and 20 sentences. Significantly, the segmentation approach splits entire sentence signals into word units. Then the deep learning model recognizes all word elements and reversely reconstructs and recognizes sentences. Furthermore, new/never-seen sentences created by new-order word elements recombination can be recognized with an average correct rate of 86.67%. Finally, the sign language recognition results are projected into virtual space and translated into text and audio, allowing the remote and bidirectional communication between signers and non-signers.
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Affiliation(s)
- Feng Wen
- Department of Electrical & Computer Engineering, National University of Singapore, Singapore, Singapore
- National University of Singapore Suzhou Research Institute (NUSRI), Suzhou, China
- Center for Intelligent Sensors and MEMS (CISM), National University of Singapore, Singapore, Singapore
| | - Zixuan Zhang
- Department of Electrical & Computer Engineering, National University of Singapore, Singapore, Singapore
- National University of Singapore Suzhou Research Institute (NUSRI), Suzhou, China
- Center for Intelligent Sensors and MEMS (CISM), National University of Singapore, Singapore, Singapore
| | - Tianyiyi He
- Department of Electrical & Computer Engineering, National University of Singapore, Singapore, Singapore
- National University of Singapore Suzhou Research Institute (NUSRI), Suzhou, China
- Center for Intelligent Sensors and MEMS (CISM), National University of Singapore, Singapore, Singapore
| | - Chengkuo Lee
- Department of Electrical & Computer Engineering, National University of Singapore, Singapore, Singapore.
- National University of Singapore Suzhou Research Institute (NUSRI), Suzhou, China.
- Center for Intelligent Sensors and MEMS (CISM), National University of Singapore, Singapore, Singapore.
- NUS Graduate School-Integrative Sciences and Engineering Program (ISEP), National University of Singapore, Singapore, Singapore.
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170
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Abstract
PURPOSE OF REVIEW Despite cutting edge acute interventions and growing preventive strategies supported by robust clinical trials, cardiovascular disease (CVD) has stubbornly persisted as a leading cause of death in the United States and globally. The American Heart Association recognizes mobile health technologies (mHealth) as an emerging strategy in the mitigation of CVD risk factors, with significant potential for improving population health. The purpose of this review is to highlight and summarize the latest available literature on mHealth applications and provide perspective on future directions and barriers to implementation. RECENT FINDINGS While available randomized controlled trials and systematic reviews tend to support efficacy of mHealth, published literature includes heterogenous approaches to similar problems with inconsistent results. Some of the strongest recent evidence has been focused on the use of wearables in arrhythmia detection. Systematic reviews of mHealth approaches demonstrate benefit when applied to risk factor modification in diabetes, cigarette smoking cessation, and physical activity/weight loss, while also showing promise in multi risk factor modification via cardiac rehabilitation. SUMMARY Evidence supports efficacy of mHealth in a variety of applications for CVD prevention and management, but continued work is needed for further validation and scaling. Future directions will focus on platform optimization, data and sensor consolidation, and clinical workflow integration. Barriers include application heterogeneity, lack of reimbursement structures, and inequitable access to technology. Policies to promote access to technology will be critical to evidence-based mHealth technologies reaching diverse populations and advancing health equity.
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171
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Herbert R, Lim H, Park S, Kim J, Yeo W. Recent Advances in Printing Technologies of Nanomaterials for Implantable Wireless Systems in Health Monitoring and Diagnosis. Adv Healthc Mater 2021; 10:e2100158. [PMID: 34019731 DOI: 10.1002/adhm.202100158] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/03/2021] [Indexed: 12/17/2022]
Abstract
The development of wireless implantable sensors and integrated systems, enabled by advances in flexible and stretchable electronics technologies, is emerging to advance human health monitoring, diagnosis, and treatment. Progress in material and fabrication strategies allows for implantable electronics for unobtrusive monitoring via seamlessly interfacing with tissues and wirelessly communicating. Combining new nanomaterials and customizable printing processes offers unique possibilities for high-performance implantable electronics. Here, this report summarizes the recent progress and advances in nanomaterials and printing technologies to develop wireless implantable sensors and electronics. Advances in materials and printing processes are reviewed with a focus on challenges in implantable applications. Demonstrations of wireless implantable electronics and advantages based on these technologies are discussed. Lastly, existing challenges and future directions of nanomaterials and printing are described.
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Affiliation(s)
- Robert Herbert
- George W. Woodruff School of Mechanical Engineering Center for Human‐Centric Interfaces and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Hyo‐Ryoung Lim
- George W. Woodruff School of Mechanical Engineering Center for Human‐Centric Interfaces and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Sehyun Park
- School of Engineering and Computer Science Washington State University Vancouver WA 98686 USA
| | - Jong‐Hoon Kim
- School of Engineering and Computer Science Washington State University Vancouver WA 98686 USA
| | - Woon‐Hong Yeo
- George W. Woodruff School of Mechanical Engineering Center for Human‐Centric Interfaces and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
- Wallace H. Coulter Department of Biomedical Engineering Parker H. Petit Institute for Bioengineering and Biosciences Neural Engineering Center Institute for Materials Institute for Robotics and Intelligent Machines Georgia Institute of Technology Atlanta GA 30332 USA
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172
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Liu C, Kim J, Kwak SS, Hourlier‐Fargette A, Avila R, Vogl J, Tzavelis A, Chung HU, Lee JY, Kim DH, Ryu D, Fields KB, Ciatti JL, Li S, Irie M, Bradley A, Shukla A, Chavez J, Dunne EC, Kim SS, Kim J, Park JB, Jo HH, Kim J, Johnson MC, Kwak JW, Madhvapathy SR, Xu S, Rand CM, Marsillio LE, Hong SJ, Huang Y, Weese‐Mayer DE, Rogers JA. Wireless, Skin-Interfaced Devices for Pediatric Critical Care: Application to Continuous, Noninvasive Blood Pressure Monitoring. Adv Healthc Mater 2021; 10:e2100383. [PMID: 33938638 DOI: 10.1002/adhm.202100383] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/22/2021] [Indexed: 12/16/2022]
Abstract
Indwelling arterial lines, the clinical gold standard for continuous blood pressure (BP) monitoring in the pediatric intensive care unit (PICU), have significant drawbacks due to their invasive nature, ischemic risk, and impediment to natural body movement. A noninvasive, wireless, and accurate alternative would greatly improve the quality of patient care. Recently introduced classes of wireless, skin-interfaced devices offer capabilities in continuous, precise monitoring of physiologic waveforms and vital signs in pediatric and neonatal patients, but have not yet been employed for continuous tracking of systolic and diastolic BP-critical for guiding clinical decision-making in the PICU. The results presented here focus on materials and mechanics that optimize the system-level properties of these devices to enhance their reliable use in this context, achieving full compatibility with the range of body sizes, skin types, and sterilization schemes typically encountered in the PICU. Systematic analysis of the data from these devices on 23 pediatric patients, yields derived, noninvasive BP values that can be quantitatively validated against direct recordings from arterial lines. The results from this diverse cohort, including those under pharmacological protocols, suggest that wireless, skin-interfaced devices can, in certain circumstances of practical utility, accurately and continuously monitor BP in the PICU patient population.
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173
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Yoo S, Lee J, Joo H, Sunwoo S, Kim S, Kim D. Wireless Power Transfer and Telemetry for Implantable Bioelectronics. Adv Healthc Mater 2021; 10:e2100614. [PMID: 34075721 DOI: 10.1002/adhm.202100614] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/07/2021] [Indexed: 12/14/2022]
Abstract
Implantable bioelectronic devices are becoming useful and prospective solutions for various diseases owing to their ability to monitor or manipulate body functions. However, conventional implantable devices (e.g., pacemaker and neurostimulator) are still bulky and rigid, which is mostly due to the energy storage component. In addition to mechanical mismatch between the bulky and rigid implantable device and the soft human tissue, another significant drawback is that the entire device should be surgically replaced once the initially stored energy is exhausted. Besides, retrieving physiological information across a closed epidermis is a tricky procedure. However, wireless interfaces for power and data transfer utilizing radio frequency (RF) microwave offer a promising solution for resolving such issues. While the RF interfacing devices for power and data transfer are extensively investigated and developed using conventional electronics, their application to implantable bioelectronics is still a challenge owing to the constraints and requirements of in vivo environments, such as mechanical softness, small module size, tissue attenuation, and biocompatibility. This work elucidates the recent advances in RF-based power transfer and telemetry for implantable bioelectronics to tackle such challenges.
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Affiliation(s)
- Seungwon Yoo
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul 08826 Republic of Korea
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University Seoul 08826 Republic of Korea
| | - Jonghun Lee
- Department of Electronics and Information Convergence Engineering Kyung Hee University Yongin‐si 17104 Republic of Korea
- Institute for Wearable Convergence Electronics Kyung Hee University Yongin‐si 17104 Republic of Korea
| | - Hyunwoo Joo
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul 08826 Republic of Korea
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University Seoul 08826 Republic of Korea
| | - Sung‐Hyuk Sunwoo
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul 08826 Republic of Korea
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University Seoul 08826 Republic of Korea
| | - Sanghoek Kim
- Department of Electronics and Information Convergence Engineering Kyung Hee University Yongin‐si 17104 Republic of Korea
- Institute for Wearable Convergence Electronics Kyung Hee University Yongin‐si 17104 Republic of Korea
| | - Dae‐Hyeong Kim
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul 08826 Republic of Korea
- School of Chemical and Biological Engineering Institute of Chemical Processes Seoul National University Seoul 08826 Republic of Korea
- Department of Materials Science and Engineering Seoul National University Seoul 08826 Republic of Korea
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174
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Lyu Q, Gong S, Yin J, Dyson JM, Cheng W. Soft Wearable Healthcare Materials and Devices. Adv Healthc Mater 2021; 10:e2100577. [PMID: 34019737 DOI: 10.1002/adhm.202100577] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/25/2021] [Indexed: 12/16/2022]
Abstract
In spite of advances in electronics and internet technologies, current healthcare remains hospital-centred. Disruptive technologies are required to translate state-of-art wearable devices into next-generation patient-centered diagnosis and therapy. In this review, recent advances in the emerging field of soft wearable materials and devices are summarized. A prerequisite for such future healthcare devices is the need of novel materials to be mechanically compliant, electrically conductive, and biologically compatible. It is begun with an overview of the two viable design strategies reported in the literatures, which is followed by description of state-of-the-art wearable healthcare devices for monitoring physical, electrophysiological, chemical, and biological signals. Self-powered wearable bioenergy devices are also covered and sensing systems, as well as feedback-controlled wearable closed-loop biodiagnostic and therapy systems. Finally, it is concluded with an overall summary and future perspective.
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Affiliation(s)
- Quanxia Lyu
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
| | - Shu Gong
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
| | - Jialiang Yin
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
| | - Jennifer M. Dyson
- Department of Biochemistry & Molecular Biology Biomedicine Discovery Institute Clayton VIC 3800 Australia
- Faculty of Engineering Monash Institute of Medical Engineering (MIME) Monash University Clayton VIC 3800 Australia
| | - Wenlong Cheng
- Department of Chemical Engineering Monash University Clayton VIC 3800 Australia
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175
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Liu H, Zhang S, Li Z, Lu TJ, Lin H, Zhu Y, Ahadian S, Emaminejad S, Dokmeci MR, Xu F, Khademhosseini A. Harnessing the Wide-range Strain Sensitivity of Bilayered PEDOT:PSS Films for Wearable Health Monitoring. MATTER 2021; 4:2886-2901. [PMID: 34746749 PMCID: PMC8570613 DOI: 10.1016/j.matt.2021.06.034] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Mechanical deformation of human skin provides essential information about human motions, muscle stretching, vocal fold vibration, and heart rates. Monitoring these activities requires the measurement of strains at different levels. Herein, we report a wearable wide-range strain sensor based on conducting polymer poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). A bioinspired bilayer structure was constructed to enable a wide-range strain sensing (1%~100%). Besides, hydrogel was chosen as the biological- and mechanical-compatible interface layer with the human skin. Finally, we demonstrated that the strain sensor is capable of monitoring various strain-related activities, including subtle skin deformation (pulse and phonation), mid-level body stretch (swallowing and facial expressions), and substantial joint movement (elbow bending).
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Affiliation(s)
- Hao Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, P.R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University, Xi’an 710049, P.R. China
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Shiming Zhang
- Department of Electronic and Electrical Engineering, The University of Hong Kong, Hong Kong SAR, P.R. China
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, CA 90024
| | - Zhikang Li
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Tian Jian Lu
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R. China
| | - Haisong Lin
- Department of Electrical and Computer Engineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, CA 90024
| | - Samad Ahadian
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, CA 90024
| | - Sam Emaminejad
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Electrical and Computer Engineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Mehmet Remzi Dokmeci
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, CA 90024
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, P.R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University, Xi’an 710049, P.R. China
| | - Ali Khademhosseini
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Radiology, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, CA 90024
- Lead contact
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176
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Oh YS, Kim JH, Xie Z, Cho S, Han H, Jeon SW, Park M, Namkoong M, Avila R, Song Z, Lee SU, Ko K, Lee J, Lee JS, Min WG, Lee BJ, Choi M, Chung HU, Kim J, Han M, Koo J, Choi YS, Kwak SS, Kim SB, Kim J, Choi J, Kang CM, Kim JU, Kwon K, Won SM, Baek JM, Lee Y, Kim SY, Lu W, Vazquez-Guardado A, Jeong H, Ryu H, Lee G, Kim K, Kim S, Kim MS, Choi J, Choi DY, Yang Q, Zhao H, Bai W, Jang H, Yu Y, Lim J, Guo X, Kim BH, Jeon S, Davies C, Banks A, Sung HJ, Huang Y, Park I, Rogers JA. Battery-free, wireless soft sensors for continuous multi-site measurements of pressure and temperature from patients at risk for pressure injuries. Nat Commun 2021; 12:5008. [PMID: 34429436 PMCID: PMC8385057 DOI: 10.1038/s41467-021-25324-w] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 07/27/2021] [Indexed: 02/03/2023] Open
Abstract
Capabilities for continuous monitoring of pressures and temperatures at critical skin interfaces can help to guide care strategies that minimize the potential for pressure injuries in hospitalized patients or in individuals confined to the bed. This paper introduces a soft, skin-mountable class of sensor system for this purpose. The design includes a pressure-responsive element based on membrane deflection and a battery-free, wireless mode of operation capable of multi-site measurements at strategic locations across the body. Such devices yield continuous, simultaneous readings of pressure and temperature in a sequential readout scheme from a pair of primary antennas mounted under the bedding and connected to a wireless reader and a multiplexer located at the bedside. Experimental evaluation of the sensor and the complete system includes benchtop measurements and numerical simulations of the key features. Clinical trials involving two hemiplegic patients and a tetraplegic patient demonstrate the feasibility, functionality and long-term stability of this technology in operating hospital settings.
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Affiliation(s)
- Yong Suk Oh
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jae-Hwan Kim
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
- Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Zhaoqian Xie
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, People's Republic of China
- Ningbo Institute of Dalian University of Technology, Ningbo, People's Republic of China
| | - Seokjoo Cho
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Hyeonseok Han
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Sung Woo Jeon
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Minsu Park
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Myeong Namkoong
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
| | - Raudel Avila
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA
| | - Zhen Song
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, People's Republic of China
- Ningbo Institute of Dalian University of Technology, Ningbo, People's Republic of China
| | - Sung-Uk Lee
- Advanced 3D Printing Technology Development Division, Korea Atomic Energy Research Institute, Daejeon, Republic of Korea
| | | | | | - Je-Sang Lee
- Department of Rehabilitation Medicine, Gimhae Hansol Rehabilitation & Convalescent Hospital, Gimhae, Republic of Korea
| | - Weon Gi Min
- Department of Planning and Development, Gimhae Hansol Rehabilitation & Convalescent Hospital, Gimhae, Republic of Korea
| | - Byeong-Ju Lee
- Department of Rehabilitation Medicine, Pusan national university hospital, Busan, Republic of Korea
| | - Myungwoo Choi
- Department of Materials Science and Engineering, KAIST Institute for The Nanocentury (KINC), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | | | - Jongwon Kim
- Sibel Health Inc, Niles, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
- Department of Mechanical Engineering, Kyung Hee University, Yongin, Republic of Korea
| | - Mengdi Han
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, People's Republic of China
| | - Jahyun Koo
- School of Biomedical Engineering, Korea University, Seoul, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, Republic of Korea
| | - Yeon Sik Choi
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
| | - Sung Soo Kwak
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Sung Bong Kim
- Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Jeonghyun Kim
- Department of Electronic Convergence Engineering, Kwangwoon University, Seoul, Republic of Korea
| | - Jungil Choi
- School of Mechanical Engineering, Kookmin University, Seoul, Republic of Korea
| | - Chang-Mo Kang
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, USA
| | - Jong Uk Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Kyeongha Kwon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Sang Min Won
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Janice Mihyun Baek
- Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - Yujin Lee
- Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - So Young Kim
- Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL, USA
| | - Wei Lu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA
| | - Abraham Vazquez-Guardado
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Hyoyoung Jeong
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Hanjun Ryu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA
| | - Geumbee Lee
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
| | - Kyuyoung Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Seunghwan Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Min Seong Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jungrak Choi
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Dong Yun Choi
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology (KITECH), Yeongcheon, Republic of Korea
| | - Quansan Yang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
| | - Hangbo Zhao
- Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA, USA
| | - Wubin Bai
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Hokyung Jang
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Jaeman Lim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Xu Guo
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, People's Republic of China
- Ningbo Institute of Dalian University of Technology, Ningbo, People's Republic of China
| | - Bong Hoon Kim
- Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul, Republic of Korea
| | - Seokwoo Jeon
- Department of Materials Science and Engineering, KAIST Institute for The Nanocentury (KINC), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Charles Davies
- Carle Neuroscience Institute, Carle, Physician Group, Urbana, IL, USA
| | - Anthony Banks
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Hyung Jin Sung
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Yonggang Huang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA.
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA.
- Departments of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA.
| | - Inkyu Park
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
| | - John A Rogers
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, USA.
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA.
- Department of Materials Science and Engineering, KAIST Institute for The Nanocentury (KINC), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA.
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA.
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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177
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Huang X, Li J, Liu Y, Wong T, Su J, Yao K, Zhou J, Huang Y, Li H, Li D, Wu M, Song E, Han S, Yu X. Epidermal self-powered sweat sensors for glucose and lactate monitoring. Biodes Manuf 2021. [DOI: 10.1007/s42242-021-00156-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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178
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Cay G, Ravichandran V, Saikia MJ, Hoffman L, Laptook A, Padbury J, Salisbury AL, Gitelson-Kahn A, Venkatasubramanian K, Shahriari Y, Mankodiya K. An E-Textile Respiration Sensing System for NICU Monitoring: Design and Validation. JOURNAL OF SIGNAL PROCESSING SYSTEMS 2021; 94:543-557. [PMID: 34306304 PMCID: PMC8286045 DOI: 10.1007/s11265-021-01669-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 04/16/2021] [Accepted: 05/02/2021] [Indexed: 06/13/2023]
Abstract
The world is witnessing a rising number of preterm infants who are at significant risk of medical conditions. These infants require continuous care in Neonatal Intensive Care Units (NICU). Medical parameters are continuously monitored in premature infants in the NICU using a set of wired, sticky electrodes attached to the body. Medical adhesives used on the electrodes can be harmful to the baby, causing skin injuries, discomfort, and irritation. In addition, respiration rate (RR) monitoring in the NICU faces challenges of accuracy and clinical quality because RR is extracted from electrocardiogram (ECG). This research paper presents a design and validation of a smart textile pressure sensor system that addresses the existing challenges of medical monitoring in NICU. We designed two e-textile, piezoresistive pressure sensors made of Velostat for noninvasive RR monitoring; one was hand-stitched on a mattress topper material, and the other was embroidered on a denim fabric using an industrial embroidery machine. We developed a data acquisition system for validation experiments conducted on a high-fidelity, programmable NICU baby mannequin. We designed a signal processing pipeline to convert raw time-series signals into parameters including RR, rise and fall time, and comparison metrics. The results of the experiments showed that the relative accuracies of hand-stitched sensors were 98.68 (top sensor) and 98.07 (bottom sensor), while the accuracies of embroidered sensors were 99.37 (left sensor) and 99.39 (right sensor) for the 60 BrPM test case. The presented prototype system shows promising results and demands more research on textile design, human factors, and human experimentation.
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Affiliation(s)
- Gozde Cay
- Department of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, RI USA
| | - Vignesh Ravichandran
- Department of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, RI USA
| | - Manob Jyoti Saikia
- Department of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, RI USA
- Center for Applied Brain and Cognitive Sciences, Tufts University, Medford, MA USA
| | - Laurie Hoffman
- Pediatrics, Women and Infants Hospital, Providence, RI USA
| | - Abbot Laptook
- Pediatrics, Women and Infants Hospital, Providence, RI USA
| | - James Padbury
- Pediatrics, Women and Infants Hospital, Providence, RI USA
| | - Amy L. Salisbury
- Pediatrics, Women and Infants Hospital, Providence, RI USA
- School of Nursing, Virginia Commonwealth University, Richmond, VA USA
| | - Anna Gitelson-Kahn
- Department of Textiles, Rhode Island School of Design, Providence, RI USA
| | | | - Yalda Shahriari
- Department of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, RI USA
| | - Kunal Mankodiya
- Department of Electrical, Computer, and Biomedical Engineering, University of Rhode Island, Kingston, RI USA
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179
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Li J, Liu J, Lu W, Wu Z, Yu J, Wang B, Ma Z, Huo W, Huang X. Water-Sintered Transient Nanocomposites Used as Electrical Interconnects for Dissolvable Consumer Electronics. ACS APPLIED MATERIALS & INTERFACES 2021; 13:32136-32148. [PMID: 34225448 DOI: 10.1021/acsami.1c07102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rapid development of electronic technology shortens the development time for new products and accelerates the obsolescence of consumer electronics, resulting in the explosive growth of electronic waste that is difficult to recycle and hazardous to the environment and human health. Transient electronics that can dissolve in water may potentially be adopted to tackle the issues of electronic waste; however, promising approaches to yield large-scale and high-performance transient consumer electronics have not yet been developed. Here, the joint effect of galvanic corrosion and redeposition has been utilized to develop bimetallic transient nanocomposites, which can be printed and water-sintered to yield high-performance transient PCB circuits with excellent electrical conductivity and mechanical robustness. The entire sintering process requires no external energy and strict environmental conditions. The achieved PCB circuits offer a conductivity of 307,664.4 S/m that is among the highest in comparison with other printed transient circuits. The supreme performance of the transient circuits eventually leads to the first dissolvable smartwatch that offers the same functions and similar performance as conventional smartwatches and dissolves in water within 40 h. The joint effect of galvanic corrosion and redeposition between two metals with distinct activities leads to novel nanocomposites and processing techniques of transient electronics. The resulting high-performance transient devices may reshape the appearance of consumer electronics and reform the electronics recycling industry by reducing recycling costs and minimizing environmental pollution and health hazard.
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Affiliation(s)
- Jiameng Li
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Jiayin Liu
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Wangwei Lu
- Institute of Flexible Electronics Technology of Tsinghua University Zhejiang, 906 Yatai Road, Jiaxing 314000, China
| | - Ziyue Wu
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Jingxian Yu
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Bangbang Wang
- School of Materials Science and Engineering, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
| | - Zhe Ma
- School of Materials Science and Engineering, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
| | - Wenxing Huo
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Xian Huang
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
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180
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Gambhir SS, Ge TJ, Vermesh O, Spitler R, Gold GE. Continuous health monitoring: An opportunity for precision health. Sci Transl Med 2021; 13:13/597/eabe5383. [PMID: 34108250 DOI: 10.1126/scitranslmed.abe5383] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 05/19/2021] [Indexed: 01/15/2023]
Abstract
Continuous health monitoring and integrated diagnostic devices, worn on the body and used in the home, will help to identify and prevent early manifestations of disease. However, challenges lie ahead in validating new health monitoring technologies and in optimizing data analytics to extract actionable conclusions from continuously obtained health data.
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Affiliation(s)
- Sanjiv S Gambhir
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, CA 94305, USA.,Canary Center at Stanford for Cancer Early Detection, Stanford University School of Medicine, Palo Alto, CA 94304, USA.,Department of Bioengineering and Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA.,Precision Health and Integrated Diagnostics Center, Stanford University, Stanford, CA 94305, USA
| | - T Jessie Ge
- Department of Urology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Ophir Vermesh
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ryan Spitler
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, CA 94305, USA. .,Canary Center at Stanford for Cancer Early Detection, Stanford University School of Medicine, Palo Alto, CA 94304, USA.,Precision Health and Integrated Diagnostics Center, Stanford University, Stanford, CA 94305, USA
| | - Garry E Gold
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, CA 94305, USA.,Precision Health and Integrated Diagnostics Center, Stanford University, Stanford, CA 94305, USA
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181
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Jang J, Ji S, Grandhi GK, Cho HB, Im WB, Park JU. Multimodal Digital X-ray Scanners with Synchronous Mapping of Tactile Pressure Distributions using Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008539. [PMID: 34145641 DOI: 10.1002/adma.202008539] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/05/2021] [Indexed: 06/12/2023]
Abstract
Visual and tactile information are the key intuitive perceptions in sensory systems, and the synchronized detection of these two sensory modalities can enhance accuracy of object recognition by providing complementary information between them. Herein, multimodal integration of flexible, high-resolution X-ray detectors with a synchronous mapping of tactile pressure distributions for visualizing internal structures and morphologies of an object simultaneously is reported. As a visual-inspection method, perovskite materials that convert X-rays into charge carriers directly are synthesized. By incorporating pressure-sensitive air-dielectric transistors in the perovskite components, X-ray detectors with dual modalities (i.e., vision and touch) are attained as an active-matrix platform for digital visuotactile examinations. Also, in vivo X-ray imaging and pressure sensing are demonstrated using a live rat. This multiplexed platform has high spatial resolution and good flexibility, thereby providing highly accurate inspection and diagnoses even for the distorted images of nonplanar objects.
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Affiliation(s)
- Jiuk Jang
- Nano Science Technology Institute, Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sangyoon Ji
- Nano Science Technology Institute, Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - G Krishnamurthy Grandhi
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Han Bin Cho
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Won Bin Im
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jang-Ung Park
- Nano Science Technology Institute, Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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182
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Wang Y, Xie S, Bai Y, Suo Z, Jia K. Transduction between magnets and ions. MATERIALS HORIZONS 2021; 8:1959-1965. [PMID: 34846472 DOI: 10.1039/d1mh00418b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A time-varying magnetic field generates an electric field in an electrolyte, in which ions move. This magnetoionic transduction is studied here in several arrangements. The electrolyte is a hydrogel containing mobile ions, and is in contact with two metallic electrodes. An alternating electric current applied to a metal coil generates a time-varying magnetic field. In response, ions in the hydrogel move. The two hydrogel/electrode interfaces are non-faradaic and accumulate excess ions of opposite signs, which attract and repel electrons in the two electrodes. When the two electrodes are connected to a voltmeter of internal resistance much larger than that of the hydrogel, an open-circuit voltage is measured, linear in the alternating current applied to the metal coil. A metal coil and a hydrogel coil form an ionotronic transformer, in which an alternating electric current in the metal coil induces an alternating ionic current in the hydrogel coil. Such a transformer can be used for noncontact power transmission, with a voltage high enough to turn on many light-emitting diodes in series. The hydrogel is soft, and readily conforms to a curved surface, such as a glove on a human hand. Motion of the hand can be detected by noncontact magnetoionic transduction.
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Affiliation(s)
- Yecheng Wang
- John A. Paulson School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, MA 02138, USA.
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183
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Yamagishi K, Zhou W, Ching T, Huang SY, Hashimoto M. Ultra-Deformable and Tissue-Adhesive Liquid Metal Antennas with High Wireless Powering Efficiency. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008062. [PMID: 34031936 DOI: 10.1002/adma.202008062] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/22/2021] [Indexed: 06/12/2023]
Abstract
Flexible and stretchable antennas are important for wireless communication using wearable and implantable devices to address mechanical mismatch at the tissue-device interface. Emerging technologies of liquid-metal-based stretchable electronics are promising approaches to improve the flexibility and stretchability of conventional metal-based antennas. However, existing methods to encapsulate liquid metals require monolithically thick (at least 100 µm) substrates, and the resulting devices are limited in deformability and tissue-adhesiveness. To overcome this limitation, fabrication of microchannels by direct ink writing on a 7 µm-thick elastomeric substrate is demonstrated, to obtain liquid metal microfluidic antennas with unprecedented deformability. The fabricated wireless light-emitting device is powered by a standard near-field-communication system (13.56 MHz, 1 W) and retained a consistent operation under deformations including stretching (>200% uniaxial strain), twisting (180° twist), and bending (3.0 mm radius of curvature) while maintaining a high quality factor (q > 20). Suture-free conformal adhesion of the polydopamine-coated device to ex vivo animal tissues under mechanical deformations is also demonstrated. This technology offers a new capability for the design and fabrication of wireless biomedical devices requiring conformable tissue-device integration toward minimally invasive, imperceptible medical treatments.
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Affiliation(s)
- Kento Yamagishi
- Digital Manufacturing and Design (DManD) Centre, Singapore University of Technology and Design, Singapore, 487372, Singapore
| | - Wenshen Zhou
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
| | - Terry Ching
- Digital Manufacturing and Design (DManD) Centre, Singapore University of Technology and Design, Singapore, 487372, Singapore
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Shao Ying Huang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
| | - Michinao Hashimoto
- Digital Manufacturing and Design (DManD) Centre, Singapore University of Technology and Design, Singapore, 487372, Singapore
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore, 487372, Singapore
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184
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Sempionatto JR, Lin M, Yin L, De la Paz E, Pei K, Sonsa-Ard T, de Loyola Silva AN, Khorshed AA, Zhang F, Tostado N, Xu S, Wang J. An epidermal patch for the simultaneous monitoring of haemodynamic and metabolic biomarkers. Nat Biomed Eng 2021; 5:737-748. [PMID: 33589782 DOI: 10.1038/s41551-021-00685-1] [Citation(s) in RCA: 218] [Impact Index Per Article: 72.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 01/12/2021] [Indexed: 02/02/2023]
Abstract
Monitoring the effects of daily activities on the physiological responses of the body calls for wearable devices that can simultaneously track metabolic and haemodynamic parameters. Here we describe a non-invasive skin-worn device for the simultaneous monitoring of blood pressure and heart rate via ultrasonic transducers and of multiple biomarkers via electrochemical sensors. We optimized the integrated device so that it provides mechanical resiliency and flexibility while conforming to curved skin surfaces, and to ensure reliable sensing of glucose in interstitial fluid and of lactate, caffeine and alcohol in sweat, without crosstalk between the individual sensors. In human volunteers, the device captured physiological effects of food intake and exercise, in particular the production of glucose after food digestion, the consumption of glucose via glycolysis, and increases in blood pressure and heart rate compensating for oxygen depletion and lactate generation. Continuous and simultaneous acoustic and electrochemical sensing via integrated wearable devices should enrich the understanding of the body's response to daily activities, and could facilitate the early prediction of abnormal physiological changes.
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Affiliation(s)
- Juliane R Sempionatto
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Muyang Lin
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Lu Yin
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Ernesto De la Paz
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Kexin Pei
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Thitaporn Sonsa-Ard
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | | | - Ahmed A Khorshed
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Fangyu Zhang
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Nicholas Tostado
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA
| | - Sheng Xu
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA.
| | - Joseph Wang
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA, USA.
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185
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Continuous monitoring of deep-tissue haemodynamics with stretchable ultrasonic phased arrays. Nat Biomed Eng 2021; 5:749-758. [PMID: 34272524 DOI: 10.1038/s41551-021-00763-4] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 06/10/2021] [Indexed: 02/06/2023]
Abstract
Stretchable wearable devices for the continuous monitoring of physiological signals from deep tissues are constrained by the depth of signal penetration and by difficulties in resolving signals from specific tissues. Here, we report the development and testing of a prototype skin-conformal ultrasonic phased array for the monitoring of haemodynamic signals from tissues up to 14 cm beneath the skin. The device allows for active focusing and steering of ultrasound beams over a range of incident angles so as to target regions of interest. In healthy volunteers, we show that the phased array can be used to monitor Doppler spectra from cardiac tissues, record central blood flow waveforms and estimate cerebral blood supply in real time. Stretchable and conformal skin-worn ultrasonic phased arrays may open up opportunities for wearable diagnostics.
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186
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Li Q, Chen G, Cui Y, Ji S, Liu Z, Wan C, Liu Y, Lu Y, Wang C, Zhang N, Cheng Y, Zhang KQ, Chen X. Highly Thermal-Wet Comfortable and Conformal Silk-Based Electrodes for On-Skin Sensors with Sweat Tolerance. ACS NANO 2021; 15:9955-9966. [PMID: 34110782 DOI: 10.1021/acsnano.1c01431] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Noninvasive and seamless interfacing between the sensors and human skin is highly desired for wearable healthcare. Thin-film-based soft and stretchable sensors can to some extent form conformal contact with skin even under dynamic movements for high-fidelity signals acquisition. However, sweat accumulation underneath these sensors for long-term monitoring would compromise the thermal-wet comfort, electrode adherence to the skin, and signal fidelity. Here, we report the fabrication of a highly thermal-wet comfortable and conformal silk-based electrode, which can be used for on-skin electrophysiological measurement under sweaty conditions. It is realized through incorporating conducting polymers poly(3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT:PSS) into glycerol-plasticized silk fiber mats. Glycerol plays the role of tuning the mechanical properties of silk fiber mats and enhancing the conductivity of PEDOT:PSS. Our silk-based electrodes show high stretchability (>250%), low thermal insulation (∼0.13 °C·m2·W-1), low evaporative resistance (∼23 Pa·m2·W-1, 10 times lower than ∼1.3 mm thick commercial gel electrodes), and high water-vapor transmission rate (∼117 g·m-2·h-1 under sweaty conditions, 2 times higher than skin water loss). These features enable a better electrocardiography signal quality than that of commercial gel electrodes without disturbing the heat dissipation during sweat evaporation and provide possibilities for textile integration to monitor the muscle activities under large deformation. Our glycerol-plasticized silk-based electrodes possessing superior physiological comfortability may further engage progress in on-skin electronics with sweat tolerance.
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Affiliation(s)
- Qingsong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
- CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen 518055, China
| | - Geng Chen
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Yajing Cui
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Shaobo Ji
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Zhiyuan Liu
- CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen 518055, China
| | - Changjin Wan
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Yuping Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Yehu Lu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Changxian Wang
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Nan Zhang
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Yuan Cheng
- Monash Suzhou Research Institute, Suzhou 215123, China
| | - Ke-Qin Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Xiaodong Chen
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
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187
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Tensor-Based ECG Anomaly Detection toward Cardiac Monitoring in the Internet of Health Things. SENSORS 2021; 21:s21124173. [PMID: 34204575 PMCID: PMC8234952 DOI: 10.3390/s21124173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 12/02/2022]
Abstract
Advanced heart monitors, especially those enabled by the Internet of Health Things (IoHT), provide a great opportunity for continuous collection of the electrocardiogram (ECG), which contains rich information about underlying cardiac conditions. Realizing the full potential of IoHT-enabled cardiac monitoring hinges, to a great extent, on the detection of disease-induced anomalies from collected ECGs. However, challenges exist in the current literature for IoHT-based cardiac monitoring: (1) Most existing methods are based on supervised learning, which requires both normal and abnormal samples for training. This is impractical as it is generally unknown when and what kind of anomalies will occur during cardiac monitoring. (2) Furthermore, it is difficult to leverage advanced machine learning approaches for information processing of 1D ECG signals, as most of them are designed for 2D images and higher-dimensional data. To address these challenges, a new sensor-based unsupervised framework is developed for IoHT-based cardiac monitoring. First, a high-dimensional tensor is generated from the multi-channel ECG signals through the Gramian Angular Difference Field (GADF). Then, multi-linear principal component analysis (MPCA) is employed to unfold the ECG tensor and delineate the disease-altered patterns. Obtained principal components are used as features for anomaly detection using machine learning models (e.g., deep support vector data description (deep SVDD)) as well as statistical control charts (e.g., Hotelling T2 chart). The developed framework is evaluated and validated using real-world ECG datasets. Comparing to the state-of-the-art approaches, the developed framework with deep SVDD achieves superior performances in detecting abnormal ECG patterns induced by various types of cardiac disease, e.g., an F-score of 0.9771 is achieved for detecting atrial fibrillation, 0.9986 for detecting right bundle branch block, and 0.9550 for detecting ST-depression. Additionally, the developed framework with the T2 control chart facilitates personalized cycle-to-cycle monitoring with timely detected abnormal ECG patterns. The developed framework has a great potential to be implemented in IoHT-enabled cardiac monitoring and smart management of cardiac health.
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188
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Lan Y, Zhang H, Min S, Kim D, Gong S, Katehi L, Xu Y, Ma Z. S- to X-Band Stretchable Inductors and Filters for Gigahertz Soft and Epidermal Electronics. ACS APPLIED MATERIALS & INTERFACES 2021; 13:25053-25063. [PMID: 34018738 DOI: 10.1021/acsami.0c22003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
To fulfill the increasing demand for radiofrequency (RF) wireless communication capacity for epidermal electronics, stretchable integrated circuits (ICs) in the gigahertz (GHz) range are desirable. Lumped RF inductors, as a key component in RFICs, typically dominate a large portion of the circuit/chip area and therefore make such inductors mechanically stretchable is critical for GHz-frequency stretchable RFICs. Most of the reported stretchable inductors operate in the MHz frequency range. The only GHz stretchable inductor shows a quality factor of about 2, limiting its potential RF applications. Here, stretchable inductors with a high quality factor of Q > 12.6 and resonance operation frequency of fres > 11.6 GHz are demonstrated by combining microspirals with stretchable structures, overcoming all of the shortcomings of previous demonstrations. Furthermore, a stretchable 1.5-2.6 GHz filter with a peak insertion loss of -2.3 dB at 1.8 GHz is developed, showing negligible performance changes under stretching or on the skin to demonstrate the utility in practical wireless applications like GSM and Bluetooth (2.45 GHz) bands. The demonstrations can facilitate multiple GHz epidermal RFICs in the future.
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Affiliation(s)
- Yu Lan
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- School of Electrical Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P. R. China
| | - Huilong Zhang
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Wisconsin Institute for Discovery, Madison, Wisconsin 53715, United States
| | - Seunghwan Min
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Donghyeok Kim
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Shaoqin Gong
- Wisconsin Institute for Discovery, Madison, Wisconsin 53715, United States
| | - Linda Katehi
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Yuehang Xu
- School of Electrical Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P. R. China
| | - Zhenqiang Ma
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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189
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Ma Z, Bao G, Li J. Multifaceted Design and Emerging Applications of Tissue Adhesives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007663. [PMID: 33956371 DOI: 10.1002/adma.202007663] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/04/2020] [Indexed: 05/24/2023]
Abstract
Tissue adhesives can form appreciable adhesion with tissues and have found clinical use in a variety of medical settings such as wound closure, surgical sealants, regenerative medicine, and device attachment. The advantages of tissue adhesives include ease of implementation, rapid application, mitigation of tissue damage, and compatibility with minimally invasive procedures. The field of tissue adhesives is rapidly evolving, leading to tissue adhesives with superior mechanical properties and advanced functionality. Such adhesives enable new applications ranging from mobile health to cancer treatment. To provide guidelines for the rational design of tissue adhesives, here, existing strategies for tissue adhesives are synthesized into a multifaceted design, which comprises three design elements: the tissue, the adhesive surface, and the adhesive matrix. The mechanical, chemical, and biological considerations associated with each design element are reviewed. Throughout the report, the limitations of existing tissue adhesives and immediate opportunities for improvement are discussed. The recent progress of tissue adhesives in topical and implantable applications is highlighted, and then future directions toward next-generation tissue adhesives are outlined. The development of tissue adhesives will fuse disciplines and make broad impacts in engineering and medicine.
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Affiliation(s)
- Zhenwei Ma
- Department of Mechanical Engineering, McGill University, Montréal, QC, H3A 0C3, Canada
| | - Guangyu Bao
- Department of Mechanical Engineering, McGill University, Montréal, QC, H3A 0C3, Canada
| | - Jianyu Li
- Department of Mechanical Engineering, McGill University, Montréal, QC, H3A 0C3, Canada
- Department of Biomedical Engineering, McGill University, Montréal, QC, H3A 2B4, Canada
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190
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Yeon H, Lee H, Kim Y, Lee D, Lee Y, Lee JS, Shin J, Choi C, Kang JH, Suh JM, Kim H, Kum HS, Lee J, Kim D, Ko K, Ma BS, Lin P, Han S, Kim S, Bae SH, Kim TS, Park MC, Joo YC, Kim E, Han J, Kim J. Long-term reliable physical health monitoring by sweat pore-inspired perforated electronic skins. SCIENCE ADVANCES 2021; 7:eabg8459. [PMID: 34193431 PMCID: PMC8245037 DOI: 10.1126/sciadv.abg8459] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/17/2021] [Indexed: 05/18/2023]
Abstract
Electronic skins (e-skins)-electronic sensors mechanically compliant to human skin-have long been developed as an ideal electronic platform for noninvasive human health monitoring. For reliable physical health monitoring, the interface between the e-skin and human skin must be conformal and intact consistently. However, conventional e-skins cannot perfectly permeate sweat in normal day-to-day activities, resulting in degradation of the intimate interface over time and impeding stable physical sensing. Here, we present a sweat pore-inspired perforated e-skin that can effectively suppress sweat accumulation and allow inorganic sensors to obtain physical health information without malfunctioning. The auxetic dumbbell through-hole patterns in perforated e-skins lead to synergistic effects on physical properties including mechanical reliability, conformability, areal mass density, and adhesion to the skin. The perforated e-skin allows one to laminate onto the skin with consistent homeostasis, enabling multiple inorganic sensors on the skin to reliably monitor the wearer's health over a period of weeks.
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Affiliation(s)
- Hanwool Yeon
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Haneol Lee
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju, South Korea
| | - Yeongin Kim
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Doyoon Lee
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Youngjoo Lee
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jong-Sung Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, South Korea
| | - Jiho Shin
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chanyeol Choi
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ji-Hoon Kang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jun Min Suh
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Materials Science and Engineering, Seoul National University, Seoul, South Korea
| | - Hyunseok Kim
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Hyun S Kum
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jaeyong Lee
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Daeyeon Kim
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology, Seoul, South Korea
| | - Kyul Ko
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology, Seoul, South Korea
| | - Boo Soo Ma
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology, Seoul, South Korea
| | - Peng Lin
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- College of Computer Science, Zhejiang University, Hangzhou, China
| | - Sangwook Han
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Materials Science and Engineering, Seoul National University, Seoul, South Korea
| | - Sungkyu Kim
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- HMC, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, South Korea
| | - Sang-Hoon Bae
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Taek-Soo Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Min-Chul Park
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology, Seoul, South Korea
| | - Young-Chang Joo
- Department of Materials Science and Engineering, Seoul National University, Seoul, South Korea
| | - Eunjoo Kim
- Skincare Division, Amorepacific R&D Center, Yongin, South Korea
| | - Jiyeon Han
- Department of Dermatology, Chung Ang University College of Medicine, Seoul, South Korea.
- Clinical Research Lab, Skincare Division, Amorepacific R&D Center, Yongin, South Korea
| | - Jeehwan Kim
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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191
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Costanzo I, Sen D, Adegite J, Rao PM, Guler U. A Noninvasive Miniaturized Transcutaneous Oxygen Monitor. IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS 2021; 15:474-485. [PMID: 34232891 DOI: 10.1109/tbcas.2021.3094931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Transcutaneous monitoring is a noninvasive method to continuously measure the partial pressures of oxygen and carbon dioxide that diffuse through the skin and correlate closely with changes in blood gases. However, the contemporary commercially available electrochemical-based technology requires a heating mechanism and a bulky, corded, and expensive sensing unit. This study aims to demonstrate a prototype noninvasive, miniaturized monitor that uses luminescence-based technology to measure the partial pressure of transcutaneous oxygen, a surrogate of the partial pressure of arterial oxygen. To be able to build a robust measurement system, we conducted experiments to understand the temperature and humidity dependence of oxygen-sensitive platinum-porphyrin films. We performed a detailed analysis of both intensity and lifetime measurement techniques. To verify the performance, we tested the prototype in a small ex-vivo experiment involving three healthy human volunteers. We measured variations in the partial pressure of transcutaneous oxygen values due to pressure-induced arterial and venous occlusions on the volunteers' fingertips. The system resolves changes in the partial pressure of oxygen from 0 to 418 mmHg in the lab bench-top testing, covering the medically relevant range of 50-150 mmHg. Under fixed humidity, temperature, and the partial pressure of oxygen conditions, the sensor shows a 2% drift over 60 hours. The prototype consumes 9 mW of power from a 2.2 V external DC power supply.
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192
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Ceneri N, Desai M, Yerebakan C. Developments in perioperative management: The yin to the yang of congenital heart surgery. J Thorac Cardiovasc Surg 2021; 162:432-434. [PMID: 34112501 DOI: 10.1016/j.jtcvs.2021.05.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 11/24/2022]
Affiliation(s)
- Nicolle Ceneri
- Division of Cardiac Surgery, Children's National Heart Institute, The George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Manan Desai
- Department of Cardiothoracic Surgery, Lucile Packard Children's Hospital, Stanford University, Palo Alto, Calif
| | - Can Yerebakan
- Division of Cardiac Surgery, Children's National Heart Institute, The George Washington University School of Medicine and Health Sciences, Washington, DC.
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193
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Weese-Mayer DE, Gonik R. Cerebral cortical-autonomic connectivity in newborns: a first step to determine the autonomic signatures with advancing age? Clin Auton Res 2021; 31:359-360. [PMID: 34013422 DOI: 10.1007/s10286-021-00807-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 11/24/2022]
Affiliation(s)
- Debra E Weese-Mayer
- Division of Pediatric Autonomic Medicine, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago and Stanley Manne Children's Research Institute, 225 East Chicago Avenue, Box 165, Chicago, IL, 60611-2605, USA. .,Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | - Renato Gonik
- Division of Pediatric Neurology, Department of Pediatrics, UF Health Shands Children's Hospital, 1600 SW Archer Road, Gainesville, FL, 32610, USA.,University of Florida College of Medicine, Gainesville, FL, USA
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194
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Ryu D, Kim DH, Price JT, Lee JY, Chung HU, Allen E, Walter JR, Jeong H, Cao J, Kulikova E, Abu-Zayed H, Lee R, Martell KL, Zhang M, Kampmeier BR, Hill M, Lee J, Kim E, Park Y, Jang H, Arafa H, Liu C, Chisembele M, Vwalika B, Sindano N, Spelke MB, Paller AS, Premkumar A, Grobman WA, Stringer JSA, Rogers JA, Xu S. Comprehensive pregnancy monitoring with a network of wireless, soft, and flexible sensors in high- and low-resource health settings. Proc Natl Acad Sci U S A 2021; 118:e2100466118. [PMID: 33972445 PMCID: PMC8157941 DOI: 10.1073/pnas.2100466118] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Vital signs monitoring is a fundamental component of ensuring the health and safety of women and newborns during pregnancy, labor, and childbirth. This monitoring is often the first step in early detection of pregnancy abnormalities, providing an opportunity for prompt, effective intervention to prevent maternal and neonatal morbidity and mortality. Contemporary pregnancy monitoring systems require numerous devices wired to large base units; at least five separate devices with distinct user interfaces are commonly used to detect uterine contractility, maternal blood oxygenation, temperature, heart rate, blood pressure, and fetal heart rate. Current monitoring technologies are expensive and complex with implementation challenges in low-resource settings where maternal morbidity and mortality is the greatest. We present an integrated monitoring platform leveraging advanced flexible electronics, wireless connectivity, and compatibility with a wide range of low-cost mobile devices. Three flexible, soft, and low-profile sensors offer comprehensive vital signs monitoring for both women and fetuses with time-synchronized operation, including advanced parameters such as continuous cuffless blood pressure, electrohysterography-derived uterine monitoring, and automated body position classification. Successful field trials of pregnant women between 25 and 41 wk of gestation in both high-resource settings (n = 91) and low-resource settings (n = 485) demonstrate the system's performance, usability, and safety.
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Affiliation(s)
| | | | - Joan T Price
- Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
- University of North Carolina Global Projects-Zambia, Lusaka 10101, Zambia
| | - Jong Yoon Lee
- Sibel Inc., Niles, IL 60714
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Ha Uk Chung
- Sibel Inc., Niles, IL 60714
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208
| | - Emily Allen
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Jessica R Walter
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Hyoyoung Jeong
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
| | | | | | - Hajar Abu-Zayed
- Sibel Inc., Niles, IL 60714
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Rachel Lee
- Sibel Inc., Niles, IL 60714
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Knute L Martell
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Michael Zhang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Brianna R Kampmeier
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | | | | | | | | | - Hokyung Jang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Hany Arafa
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208
| | - Claire Liu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
| | - Maureen Chisembele
- Department of Obstetrics and Gynecology, University of Zambia School of Medicine, Lusaka 10101, Zambia
- Women and Newborn Hospital, University Teaching Hospital, Lusaka 10101, Zambia
| | - Bellington Vwalika
- Department of Obstetrics and Gynecology, University of Zambia School of Medicine, Lusaka 10101, Zambia
| | - Ntazana Sindano
- University of North Carolina Global Projects-Zambia, Lusaka 10101, Zambia
| | - M Bridget Spelke
- University of North Carolina Global Projects-Zambia, Lusaka 10101, Zambia
| | - Amy S Paller
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Ashish Premkumar
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
- John H. Stroger, Jr. Hospital of Cook County, Chicago, IL 60612
- Department of Anthropology, The Graduate School, Northwestern University, Evanston, IL 60208
| | - William A Grobman
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Jeffrey S A Stringer
- Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599;
- University of North Carolina Global Projects-Zambia, Lusaka 10101, Zambia
| | - John A Rogers
- Sibel Inc., Niles, IL 60714;
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Shuai Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208;
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
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195
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Lim R, Damalerio RB, Bong CL, Tan SK, Cheng MY. Novel Conformal Skin Patch with Embedded Thin-Film Electrodes for Early Detection of Extravasation. SENSORS 2021; 21:s21103429. [PMID: 34069128 PMCID: PMC8156920 DOI: 10.3390/s21103429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 11/16/2022]
Abstract
Extravasation is a complication of intravenous (IV) cannulation in which vesicant drugs leak from a vein into the surrounding subcutaneous tissue. The severity of extravasation depends on the type, concentration, and volume of drugs that accumulate in the subcutaneous tissue. Rapid detection of extravasation can facilitate prompt medical intervention, minimizing tissue damage, and preventing adverse events. In this study, we present two portable sensor patches, namely gold- and carbon-based sensing patches, for early detection of extravasation. The gold-based sensor patch detected extravasated fluid of volume as low as 2 mL in in vivo animal models and human clinical trials; the patch exhibited a resistance change of 41%. The carbon-based sensor patch exhibited a resistance change of 51% for 2 mL of extravasated fluid, and fabrication throughput and cost-effectiveness are superior for this patch compared with the gold-based sensing patch.
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Affiliation(s)
- Ruiqi Lim
- Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research), Singapore 138634, Singapore; (R.L.); (R.B.D.)
| | - Ramona B. Damalerio
- Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research), Singapore 138634, Singapore; (R.L.); (R.B.D.)
| | - Choon Looi Bong
- KK Women’s & Children’s Hospital, Singapore 229899, Singapore; (C.L.B.); (S.K.T.)
| | - Swee Kim Tan
- KK Women’s & Children’s Hospital, Singapore 229899, Singapore; (C.L.B.); (S.K.T.)
| | - Ming-Yuan Cheng
- Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research), Singapore 138634, Singapore; (R.L.); (R.B.D.)
- Correspondence:
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196
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Tang X, Yang W, Yin S, Tai G, Su M, Yang J, Shi H, Wei D, Yang J. Controllable Graphene Wrinkle for a High-Performance Flexible Pressure Sensor. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20448-20458. [PMID: 33899475 DOI: 10.1021/acsami.0c22784] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Flexible pressure sensors have aroused tremendous attention, owing to their broad applications in healthcare, robotics, and prosthetics. So far, it remains a critical challenge to develop low-cost and controllable microstructures for flexible pressure sensors. Herein, a high-sensitivity and low-cost flexible piezoresistive sensor was developed by combining a controllable graphene-nanowalls (GNWs) wrinkle and a polydimethylsiloxane (PDMS) elastomer. For the GNWs-PDMS bilayer, the vertically grown GNWs film can effectively improve the interface strength and form delamination-free conformal wrinkles. More importantly, a controllable microstructure can be easily tuned through the thermal wrinkling method. The wrinkled graphene-nanowalls (WG) piezoresistive sensor has a high sensitivity (S = 59.0 kPa-1 for the 0-2 kPa region and S = 4.8 kPa-1 for the 2-20 kPa region), a fast response speed (<6.9 ms), and a low limit of detection (LOD) of 2 mg (∼0.2 Pa). The finite element method was used to analyze the working mechanism of the sensor, which revealed that the periods of the wrinkles play a dominant role in the performances of the sensors. These prominent merits enable wrinkled graphene sensors to successfully detect various signals from a weak stimulus to large pressures, for example, the detection of weak gas and plantar pressure. Furthermore, object manipulation, tactile imaging, and braille recognition applications have been demonstrated, showing their great potential in prosthetics limbs and intelligent robotics.
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Affiliation(s)
- Xinyue Tang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Weidong Yang
- School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
| | - Shuran Yin
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Guojun Tai
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Min Su
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Jin Yang
- Department of Optoelectronic Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Haofei Shi
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Dapeng Wei
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jun Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
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197
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Chai Y, Chen C, Luo X, Zhan S, Kim J, Luo J, Wang X, Hu Z, Ying Y, Liu X. Cohabiting Plant-Wearable Sensor In Situ Monitors Water Transport in Plant. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003642. [PMID: 34026443 PMCID: PMC8132156 DOI: 10.1002/advs.202003642] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/03/2021] [Indexed: 06/01/2023]
Abstract
The boom of plant phenotype highlights the need to measure the physiological characteristics of an individual plant. However, continuous real-time monitoring of a plant's internal physiological status remains challenging using traditional silicon-based sensor technology, due to the fundamental mismatch between rigid sensors and soft and curved plant surfaces. Here, the first flexible electronic sensing device is reported that can harmlessly cohabitate with the plant and continuously monitor its stem sap flow, a critical plant physiological characteristic for analyzing plant health, water consumption, and nutrient distribution. Due to a special design and the materials chosen, the realized plant-wearable sensor is thin, soft, lightweight, air/water/light-permeable, and shows excellent biocompatibility, therefore enabling the sap flow detection in a continuous and non-destructive manner. The sensor can serve as a noninvasive, high-throughput, low-cost toolbox, and holds excellent potentials in phenotyping. Furthermore, the real-time investigation on stem flow insides watermelon reveals a previously unknown day/night shift pattern of water allocation between fruit and its adjacent branch, which has not been reported before.
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Affiliation(s)
- Yangfan Chai
- College of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhou310058China
| | - Chuyi Chen
- College of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhou310058China
| | - Xuan Luo
- College of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhou310058China
| | - Shijie Zhan
- Department of EngineeringUniversity of CambridgeCambridgeCB3 0FFUK
| | - Jongmin Kim
- Department of EngineeringUniversity of CambridgeCambridgeCB3 0FFUK
| | - Jikui Luo
- College of Information Science and Electronic EngineeringZhejiang UniversityHangzhou310058China
| | - Xiaozhi Wang
- College of Information Science and Electronic EngineeringZhejiang UniversityHangzhou310058China
| | - Zhongyuan Hu
- College of Agriculture and BiotechnologyZhejiang UniversityHangzhou310058China
| | - Yibin Ying
- College of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhou310058China
| | - Xiangjiang Liu
- College of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhou310058China
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198
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Zhu J, Hu Z, Song C, Yi N, Yu Z, Liu Z, Liu S, Wang M, Dexheimer MG, Yang J, Cheng H. Stretchable wideband dipole antennas and rectennas for RF energy harvesting. MATERIALS TODAY PHYSICS 2021; 18:100377. [PMID: 33997649 PMCID: PMC8117448 DOI: 10.1016/j.mtphys.2021.100377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The ultimate application of bio-integrated, stretchable electronics hinges on the indispensable modules of stretchable wireless data transmission and power supplies. While radiofrequency (RF) antennas and rectennas could enable wireless communication and RF energy harvesting in the far-field, their performance deteriorates because of the frequency detuning from mechanical deformations. Here, stretchable wideband antennas and rectennas are introduced to robustly operate and combine received RF power over their wideband upon mechanical deformations. Devices with stretchable wideband antennas and rectennas create application opportunities such as self-powered systems, remote monitoring of the environment, and clean energy. A comprehensive set of manufacturing schemes, device components, and theoretical design tools for the stretchable wideband antennas and rectennas is reported. A stretchable wideband rectenna integrated with various functional sensing modules and its demonstration with enhanced effective rectenna efficiency over the state-of-the-art by 10-100 times illustrates a system-level example of this technology.
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Affiliation(s)
- Jia Zhu
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Zhihui Hu
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- School of Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China
| | - Chaoyun Song
- School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, UK, United Kingdom
| | - Ning Yi
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Zhaozheng Yu
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Zhendong Liu
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Key Laboratory of E&M, Zhejiang University of Technology, Ministry of Education & Zhejiang Province, Hangzhou, Zhejiang, 310014, China
| | - Shangbin Liu
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Mengjun Wang
- School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Michael Gregory Dexheimer
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Jian Yang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Huanyu Cheng
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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199
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Wang M, Luo Y, Wang T, Wan C, Pan L, Pan S, He K, Neo A, Chen X. Artificial Skin Perception. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2003014. [PMID: 32930454 DOI: 10.1002/adma.202003014] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/03/2020] [Indexed: 05/23/2023]
Abstract
Skin is the largest organ, with the functionalities of protection, regulation, and sensation. The emulation of human skin via flexible and stretchable electronics gives rise to electronic skin (e-skin), which has realized artificial sensation and other functions that cannot be achieved by conventional electronics. To date, tremendous progress has been made in data acquisition and transmission for e-skin systems, while the implementation of perception within systems, that is, sensory data processing, is still in its infancy. Integrating the perception functionality into a flexible and stretchable sensing system, namely artificial skin perception, is critical to endow current e-skin systems with higher intelligence. Here, recent progress in the design and fabrication of artificial skin perception devices and systems is summarized, and challenges and prospects are discussed. The strategies for implementing artificial skin perception utilize either conventional silicon-based circuits or novel flexible computing devices such as memristive devices and synaptic transistors, which enable artificial skin to surpass human skin, with a distributed, low-latency, and energy-efficient information-processing ability. In future, artificial skin perception would be a new enabling technology to construct next-generation intelligent electronic devices and systems for advanced applications, such as robotic surgery, rehabilitation, and prosthetics.
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Affiliation(s)
- Ming Wang
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yifei Luo
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ting Wang
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Changjin Wan
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Liang Pan
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Shaowu Pan
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ke He
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Aden Neo
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Xiaodong Chen
- Innovative Center for Flexible Devices, Max Planck - NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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200
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McGlynn E, Nabaei V, Ren E, Galeote‐Checa G, Das R, Curia G, Heidari H. The Future of Neuroscience: Flexible and Wireless Implantable Neural Electronics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2002693. [PMID: 34026431 PMCID: PMC8132070 DOI: 10.1002/advs.202002693] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/15/2021] [Indexed: 05/04/2023]
Abstract
Neurological diseases are a prevalent cause of global mortality and are of growing concern when considering an ageing global population. Traditional treatments are accompanied by serious side effects including repeated treatment sessions, invasive surgeries, or infections. For example, in the case of deep brain stimulation, large, stiff, and battery powered neural probes recruit thousands of neurons with each pulse, and can invoke a vigorous immune response. This paper presents challenges in engineering and neuroscience in developing miniaturized and biointegrated alternatives, in the form of microelectrode probes. Progress in design and topology of neural implants has shifted the goal post toward highly specific recording and stimulation, targeting small groups of neurons and reducing the foreign body response with biomimetic design principles. Implantable device design recommendations, fabrication techniques, and clinical evaluation of the impact flexible, integrated probes will have on the treatment of neurological disorders are provided in this report. The choice of biocompatible material dictates fabrication techniques as novel methods reduce the complexity of manufacture. Wireless power, the final hurdle to truly implantable neural interfaces, is discussed. These aspects are the driving force behind continued research: significant breakthroughs in any one of these areas will revolutionize the treatment of neurological disorders.
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Affiliation(s)
- Eve McGlynn
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Vahid Nabaei
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Elisa Ren
- Laboratory of Experimental Electroencephalography and NeurophysiologyDepartment of BiomedicalMetabolic and Neural SciencesUniversity of Modena and Reggio EmiliaModena41125Italy
| | - Gabriel Galeote‐Checa
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Rupam Das
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Giulia Curia
- Laboratory of Experimental Electroencephalography and NeurophysiologyDepartment of BiomedicalMetabolic and Neural SciencesUniversity of Modena and Reggio EmiliaModena41125Italy
| | - Hadi Heidari
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
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