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Liu J, Liu N, Xu Y, Wu M, Zhang H, Wang Y, Yan Y, Hill A, Song R, Xu Z, Park M, Wu Y, Ciatti JL, Gu J, Luan H, Zhang Y, Yang T, Ahn HY, Li S, Ray WZ, Franz CK, MacEwan MR, Huang Y, Hammill CW, Wang H, Rogers JA. Bioresorbable shape-adaptive structures for ultrasonic monitoring of deep-tissue homeostasis. Science 2024; 383:1096-1103. [PMID: 38452063 DOI: 10.1126/science.adk9880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/12/2024] [Indexed: 03/09/2024]
Abstract
Monitoring homeostasis is an essential aspect of obtaining pathophysiological insights for treating patients. Accurate, timely assessments of homeostatic dysregulation in deep tissues typically require expensive imaging techniques or invasive biopsies. We introduce a bioresorbable shape-adaptive materials structure that enables real-time monitoring of deep-tissue homeostasis using conventional ultrasound instruments. Collections of small bioresorbable metal disks distributed within thin, pH-responsive hydrogels, deployed by surgical implantation or syringe injection, allow ultrasound-based measurements of spatiotemporal changes in pH for early assessments of anastomotic leaks after gastrointestinal surgeries, and their bioresorption after a recovery period eliminates the need for surgical extraction. Demonstrations in small and large animal models illustrate capabilities in monitoring leakage from the small intestine, the stomach, and the pancreas.
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Affiliation(s)
- Jiaqi Liu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Naijia Liu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Yameng Xu
- The Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Mingzheng Wu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Haohui Zhang
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Yue Wang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Ying Yan
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Angela Hill
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Ruihao Song
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Zijie Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Minsu Park
- Department of Polymer Science and Engineering, Dankook University, Yongin 16890, Republic of Korea
| | - Yunyun Wu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Joanna L Ciatti
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Jianyu Gu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Haiwen Luan
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Yamin Zhang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Tianyu Yang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Hak-Young Ahn
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Shupeng Li
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Wilson Z Ray
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Colin K Franz
- Regenerative Neurorehabilitation Laboratory, Shirley Ryan AbilityLab, Chicago, IL 60611, USA
- Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- The Ken and Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Matthew R MacEwan
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Yonggang Huang
- Querrey Simpson Institute for Bioelectronics, 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
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Chet W Hammill
- Department of Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Heling Wang
- Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
- Institute of Flexible Electronics Technology of THU Zhejiang, Jiaxing 314000, China
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
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2
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Ryu H, Song JW, Luan H, Sim Y, Kwak SS, Jang H, Jo YJ, Yoon HJ, Jeong H, Shin J, Park DY, Kwon K, Ameer GA, Rogers JA. Materials and Device Designs for Wireless Monitoring of Temperature and Thermal Transport Properties of Wound Beds during Healing. Adv Healthc Mater 2024; 13:e2302797. [PMID: 37983897 DOI: 10.1002/adhm.202302797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/02/2023] [Indexed: 11/22/2023]
Abstract
Chronic wounds represent a major health risk for diabetic patients. Regeneration of such wounds requires regular medical treatments over periods that can extend for several months or more. Schemes for monitoring the healing process can provide important feedback to the patient and caregiver. Although qualitative indicators such as malodor or fever can provide some indirect information, quantitative measurements of the wound bed have the potential to yield important insights. The work presented here introduces materials and engineering designs for a wireless system that captures spatio-temporal temperature and thermal transport information across the wound continuously throughout the healing process. Systematic experimental and computational studies establish the materials aspects and basic capabilities of this technology. In vivo studies reveal that both the temperature and the changes in this quantity offer information on wound status, with indications of initial exothermic reactions and mechanisms of scar tissue formation. Bioresorbable materials serve as the foundations for versions of this device that create possibilities for monitoring on and within the wound site, in a way that bypasses the risks of physical removal.
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Affiliation(s)
- Hanjun Ryu
- Department of Advanced Materials Engineering, Chung-Ang University, Anseong, 17546, Republic of Korea
- Department of Intelligence Energy and Industry, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Joseph W Song
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL, 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Haiwen Luan
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Youngmin Sim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Sung Soo Kwak
- Center for Bionics of Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02456, Republic of Korea
| | - Hokyung Jang
- Science Corp. 1010 Atlantic Ave. 100, Alameda, CA, 94501, USA
| | - Young Jin Jo
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Hong-Joon Yoon
- Department of Electronic Engineering, Gachon University, Seongnam, 13120, Republic of Korea
| | - Hyoyoung Jeong
- Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA, 95616, USA
| | - Jaeho Shin
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Do Yun Park
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Kyeongha Kwon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Guillermo Antonio Ameer
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, 60208, USA
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute for Bionanotechnology, Evanston, IL, 60208, USA
| | - John A Rogers
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, 60208, USA
- International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute for Bionanotechnology, Evanston, IL, 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
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Sayyad PW, Park SJ, Ha TJ. Bioinspired nanoplatforms for human-machine interfaces: Recent progress in materials and device applications. Biotechnol Adv 2024; 70:108297. [PMID: 38061687 DOI: 10.1016/j.biotechadv.2023.108297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/20/2023] [Accepted: 11/29/2023] [Indexed: 01/13/2024]
Abstract
The panoramic characteristics of human-machine interfaces (HMIs) have prompted the needs to update the biotechnology community with the recent trends, developments, and future research direction toward next-generation bioelectronics. Bioinspired materials are promising for integrating various bioelectronic devices to realize HMIs. With the advancement of scientific biotechnology, state-of-the-art bioelectronic applications have been extensively investigated to improve the quality of life by developing and integrating bioinspired nanoplatforms in HMIs. This review highlights recent trends and developments in the field of biotechnology based on bioinspired nanoplatforms by demonstrating recently explored materials and cutting-edge device applications. Section 1 introduces the recent trends and developments of bioinspired nanomaterials for HMIs. Section 2 reviews various flexible, wearable, biocompatible, and biodegradable nanoplatforms for bioinspired applications. Section 3 furnishes recently explored substrates as carriers for advanced nanomaterials in developing HMIs. Section 4 addresses recently invented biomimetic neuroelectronic, nanointerfaces, biointerfaces, and nano/microfluidic wearable bioelectronic devices for various HMI applications, such as healthcare, biopotential monitoring, and body fluid monitoring. Section 5 outlines designing and engineering of bioinspired sensors for HMIs. Finally, the challenges and opportunities for next-generation bioinspired nanoplatforms in extending the potential on HMIs are discussed for a near-future scenario. We believe this review can stimulate the integration of bioinspired nanoplatforms into the HMIs in addition to wearable electronic skin and health-monitoring devices while addressing prevailing and future healthcare and material-related problems in biotechnologies.
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Affiliation(s)
- Pasha W Sayyad
- Dept. of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, South Korea
| | - Sang-Joon Park
- Dept. of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, South Korea
| | - Tae-Jun Ha
- Dept. of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, South Korea.
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4
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Ma X, Wang P, Huang L, Ding R, Zhou K, Shi Y, Chen F, Zhuang Q, Huang Q, Lin Y, Zheng Z. A monolithically integrated in-textile wristband for wireless epidermal biosensing. SCIENCE ADVANCES 2023; 9:eadj2763. [PMID: 37948514 PMCID: PMC10637736 DOI: 10.1126/sciadv.adj2763] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/13/2023] [Indexed: 11/12/2023]
Abstract
Textile bioelectronics that allow comfortable epidermal contact hold great promise in noninvasive biosensing. However, their applications are limited mainly because of the large intrinsic electrical resistance and low compatibility for electronics integration. We report an integrated wristband that consists of multifunctional modules in a single piece of textile to realize wireless epidermal biosensing. The in-textile metallic patterning and reliable interconnect encapsulation contribute to the excellent electrical conductivity, mechanical robustness, and waterproofness that are competitive with conventional flexible devices. Moreover, the well-maintained porous textile architectures deliver air permeability of 79 mm s-1 and moisture permeability of 270 g m-2 day-1, which are more than one order of magnitude higher than medical tapes, thus ensuring superior wearing comfort. The integrated in-textile wristband performed continuous sweat potassium monitoring in the range of 0.3 to 40 mM with long-term stability, demonstrating its great potential for wearable fitness monitoring and point-of-care testing.
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Affiliation(s)
- Xiaohao Ma
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
| | - Pengwei Wang
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
| | - Liting Huang
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ruochen Ding
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Kemeng Zhou
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuqing Shi
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
| | - Fan Chen
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
| | - Qiuna Zhuang
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
| | - Qiyao Huang
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
- Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
| | - Yuanjing Lin
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zijian Zheng
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
- Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
- Department of Applied Biology and Chemical Technology, Faculty of Science, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
- Research Institute for Smart Energy, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR 99077, China
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5
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Chen C, Chung C, Chiu Y, Lin Y, Tse L, Wu C, Hwang S, Lin M. Reliability analysis of a novel measurement system for quantifying human skin color. SKIN HEALTH AND DISEASE 2023; 3:e182. [PMID: 36751325 PMCID: PMC9892441 DOI: 10.1002/ski2.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/20/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022]
Abstract
Background Precision is crucial in determining the appropriate procedure for implementing further trials. We conducted a study to explore the reliability of a novel measuring system for human skin color. Methods The novel skin color measuring system was used to capture the skin color of four volunteers (2 males and 2 females) from the same location on each subject by the same operator. The measurement was repeated for different poses and instrument factors (camera and shooting protocol) in the red, green, and blue (RGB) system. The average color depth in each image was calculated and converted from 0 to 255. The spread of measures and the Bland-Altman plot was displayed to determine each variance source's random error, with the interclass correlation coefficients applied to reflect the reliability. Result The RGB color depth in the experiment ranged from 190, 152, and 122 to 208, 170, and 142. The 95% confidential interval of the differences from the means in RGB colors for the different protocols were ±2.8, ±2.6, and ±2.1, respectively. The largest variation in the replicate trials was observed when subjects were in a supine position (standard deviation: 2). The interclass correlation coefficients were greater than 90%, suggesting that the developed system is highly precise. Conclusion This study demonstrated that the developed device could stably and reliably detect human skin color across different common sources of variation, and thus could be applied clinically to explore relationships between health/disease and skin color changes.
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Affiliation(s)
- Chien‐Chung Chen
- National Taiwan University HospitalNational Taiwan UniversityTaipeiTaiwan
| | - Cheng‐Yin Chung
- Department of Internal MedicineDivision of NephrologyMinistry of Health and WelfarePingtung HospitalPingtungTaiwan
| | - Yi‐Wen Chiu
- Department of Internal MedicineDivision of NephrologyKaohsiung Medical University HospitalKaohsiung Medical UniversityKaohsiungTaiwan
- Department of Renal CareCollege of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
| | - Yu‐Hsuan Lin
- Taiwan Instrument Research InstituteNational Applied Research LaboratoriesHsinchuTaiwan
| | - Ling‐Shan Tse
- Medical Science LiaisonWS Far IR Medical Technology CO., LTDTaipeiTaiwan
| | - Ching‐Ying Wu
- Department of DermatologyKaohsiung Municipal Ta‐Tung HospitalKaohsiungTaiwan
| | - Shang‐Jyh Hwang
- Department of Internal MedicineDivision of NephrologyKaohsiung Medical University HospitalKaohsiung Medical UniversityKaohsiungTaiwan
- Department of Renal CareCollege of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
| | - Ming‐Yen Lin
- Department of Internal MedicineDivision of NephrologyKaohsiung Medical University HospitalKaohsiung Medical UniversityKaohsiungTaiwan
- Department of Renal CareCollege of MedicineKaohsiung Medical UniversityKaohsiungTaiwan
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Shin J, Wang H, Kwon K, Ostojich D, Christiansen Z, Berkovich J, Park Y, Li Z, Lee G, Nasif R, Chung TS, Su CJ, Lim J, Kubota H, Ikoma A, Lu YA, Lin DH, Xu S, Banks A, Chang JK, Rogers JA. Wireless, Soft Sensors of Skin Hydration with Designs Optimized for Rapid, Accurate Diagnostics of Dermatological Health. Adv Healthc Mater 2023; 12:e2202021. [PMID: 36337006 DOI: 10.1002/adhm.202202021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/18/2022] [Indexed: 11/09/2022]
Abstract
Accurate measurements of skin hydration are of great interest to dermatological science and clinical practice. This parameter serves as a relevant surrogate of skin barrier function, a key representative benchmark for overall skin health. The skin hydration sensor (SHS) is a soft, skin-interfaced wireless system that exploits a thermal measurement method, as an alternative to conventional impedance-based hand-held probes. This study presents multiple strategies for maximizing the sensitivity and reliability of this previously reported SHS platform. An in-depth analysis of the thermal physics of the measurement process serves as the basis for structural optimizations of the electronics and the interface to the skin. Additional engineering advances eliminate variabilities associated with manual use of the device and with protocols for the measurement. The cumulative effect is an improvement in sensitivity by 135% and in repeatability by 36% over previously reported results. Pilot trials on more than 200 patients in a dermatology clinic validate the practical utility of the sensor for fast, reliable measurements.
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Affiliation(s)
- Jaeho Shin
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Heling Wang
- Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, 100085, China.,Institute of Flexible Electronics Technology of THU, Jiaxing, Zhejiang, 314006, China
| | - Kyeongha Kwon
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.,School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | | | | | - Jaime Berkovich
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Yoonseok Park
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Zhengwei Li
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Geumbee Lee
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Rania Nasif
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Ted S Chung
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Chun-Ju Su
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Jaeman Lim
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | | | | | - Yi-An Lu
- Wearifi Inc., Evanston, IL, 60201, USA
| | - Derrick H Lin
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA
| | - Shuai Xu
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA.,Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA
| | - Anthony Banks
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.,Wearifi Inc., Evanston, IL, 60201, USA
| | - Jan-Kai Chang
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.,Wearifi Inc., Evanston, IL, 60201, USA
| | - John A Rogers
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA.,Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA.,Department of Neurological Surgery, Northwestern University, Evanston, IL, 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.,Department of Chemical Engineering, Northwestern University, Evanston, IL, 60208, USA.,Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL, 60208, USA
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7
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Zarei M, Lee G, Lee SG, Cho K. Advances in Biodegradable Electronic Skin: Material Progress and Recent Applications in Sensing, Robotics, and Human-Machine Interfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2203193. [PMID: 35737931 DOI: 10.1002/adma.202203193] [Citation(s) in RCA: 49] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/13/2022] [Indexed: 06/15/2023]
Abstract
The rapid growth of the electronics industry and proliferation of electronic materials and telecommunications technologies has led to the release of a massive amount of untreated electronic waste (e-waste) into the environment. Consequently, catastrophic environmental damage at the microbiome level and serious human health diseases threaten the natural fate of the planet. Currently, the demand for wearable electronics for applications in personalized medicine, electronic skins (e-skins), and health monitoring is substantial and growing. Therefore, "green" characteristics such as biodegradability, self-healing, and biocompatibility ensure the future application of wearable electronics and e-skins in biomedical engineering and bioanalytical sciences. Leveraging the biodegradability, sustainability, and biocompatibility of natural materials will dramatically influence the fabrication of environmentally friendly e-skins and wearable electronics. Here, the molecular and structural characteristics of biological skins and artificial e-skins are discussed. The focus then turns to the biodegradable materials, including natural and synthetic-polymer-based materials, and their recent applications in the development of biodegradable e-skin in wearable sensors, robotics, and human-machine interfaces (HMIs). Finally, the main challenges and outlook regarding the preparation and application of biodegradable e-skins are critically discussed in a near-future scenario, which is expected to lead to the next generation of biodegradable e-skins.
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Affiliation(s)
- Mohammad Zarei
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Korea
| | - Giwon Lee
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, Korea
| | - Seung Goo Lee
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Korea
| | - Kilwon Cho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, Korea
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8
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Madhvapathy SR, Arafa HM, Patel M, Winograd J, Kong J, Zhu J, Xu S, Rogers JA. Advanced thermal sensing techniques for characterizing the physical properties of skin. APPLIED PHYSICS REVIEWS 2022; 9:041307. [PMID: 36467868 PMCID: PMC9677811 DOI: 10.1063/5.0095157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 09/15/2022] [Indexed: 06/17/2023]
Abstract
Measurements of the thermal properties of the skin can serve as the basis for a noninvasive, quantitative characterization of dermatological health and physiological status. Applications range from the detection of subtle spatiotemporal changes in skin temperature associated with thermoregulatory processes, to the evaluation of depth-dependent compositional properties and hydration levels, to the assessment of various features of microvascular/macrovascular blood flow. Examples of recent advances for performing such measurements include thin, skin-interfaced systems that enable continuous, real-time monitoring of the intrinsic thermal properties of the skin beyond its superficial layers, with a path to reliable, inexpensive instruments that offer potential for widespread use as diagnostic tools in clinical settings or in the home. This paper reviews the foundational aspects of the latest thermal sensing techniques with applicability to the skin, summarizes the various devices that exploit these concepts, and provides an overview of specific areas of application in the context of skin health. A concluding section presents an outlook on the challenges and prospects for research in this field.
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9
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Tang H, Li Y, Chen B, Chen X, Han Y, Guo M, Xia HQ, Song R, Zhang X, Zhou J. In Situ Forming Epidermal Bioelectronics for Daily Monitoring and Comprehensive Exercise. ACS NANO 2022; 16:17931-17947. [PMID: 36200714 DOI: 10.1021/acsnano.2c03414] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Conventional epidermal bioelectronics usually do not conform well with natural skin surfaces and are susceptible to motion artifact interference, due to incompatible dimensions, insufficient adhesion, imperfect compliance, and usually require complex manufacturing and high costs. We propose in situ forming hydrogel electrodes or electronics (ISF-HEs) that can establish highly conformal interfaces on curved biological surfaces without auxiliary adhesions. The ISF-HEs also have favorable flexibility and soft compliance comparable to human skin (≈0.02 kPa-1), which can stably maintain synchronous movements with deformed skins. Thus, the as-prepared ISF-HEs can accurately monitor large and tiny human motions with short response time (≈180 ms), good biocompatibility, and excellent performance. The as-obtained nongapped hydrogel electrode-skin interfaces achieve ultralow interfacial impedance (≈50 KΩ), nearly an order of magnitude lower than commercial Ag|AgCl electrodes as well as other reported dry and wet electrodes, regardless of the intrinsic micro-obstacles (wrinkles, hair) and skin deformation interference. Therefore, the ISF-HEs can collect high-quality electrocardiography and surface electromyography (sEMG) signals, with high signal-to-noise ratio (SNR ≈ 32.04 dB), reduced signal crosstalk, and minimized motion artifact interference. Simultaneously monitoring human motions and sEMG signals have also been implemented for the general exercise status assessment, such as the shooting competition in the Olympics. The as-prepared ISF-HEs can be considered as supplements/substitutes of conventional electrodes in percutaneously noninvasive monitoring of multifunctional physiological signals for health and exercise status.
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Affiliation(s)
- Hao Tang
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuanfang Li
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Baiqi Chen
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xing Chen
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Yulong Han
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- School of Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ming Guo
- School of Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hong-Qi Xia
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture and Rural Affairs, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou 510640, China
| | - Rong Song
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xingcai Zhang
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- School of Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jianhua Zhou
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510275, China
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
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10
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Xu S, Kim J, Walter JR, Ghaffari R, Rogers JA. Translational gaps and opportunities for medical wearables in digital health. Sci Transl Med 2022; 14:eabn6036. [PMID: 36223451 DOI: 10.1126/scitranslmed.abn6036] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A confluence of advances in biosensor technologies, enhancements in health care delivery mechanisms, and improvements in machine learning, together with an increased awareness of remote patient monitoring, has accelerated the impact of digital health across nearly every medical discipline. Medical grade wearables-noninvasive, on-body sensors operating with clinical accuracy-will play an increasingly central role in medicine by providing continuous, cost-effective measurement and interpretation of physiological data relevant to patient status and disease trajectory, both inside and outside of established health care settings. Here, we review current digital health technologies and highlight critical gaps to clinical translation and adoption.
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Affiliation(s)
- Shuai Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60611, USA.,Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.,Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.,Sibel Health, Niles, IL 60714, USA
| | - Joohee Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60611, USA
| | - Jessica R Walter
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60611, USA.,Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Roozbeh Ghaffari
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.,Epicore Biosystems Inc., Cambridge, MA 02139, USA
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.,Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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11
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Abbasi Shirsavar M, Taghavimehr M, Ouedraogo LJ, Javaheripi M, Hashemi NN, Koushanfar F, Montazami R. Machine learning-assisted E-jet printing for manufacturing of organic flexible electronics. Biosens Bioelectron 2022; 212:114418. [DOI: 10.1016/j.bios.2022.114418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 11/02/2022]
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12
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Lu D, Li S, Yang Q, Arafa HM, Xu Y, Yan Y, Ostojich D, Bai W, Guo H, Wu C, Li S, Jacobson L, Westman AM, MacEwan MR, Huang Y, Pet M, Rogers JA. Implantable, wireless, self-fixing thermal sensors for continuous measurements of microvascular blood flow in flaps and organ grafts. Biosens Bioelectron 2022; 206:114145. [DOI: 10.1016/j.bios.2022.114145] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/09/2022] [Accepted: 02/28/2022] [Indexed: 11/02/2022]
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13
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Lin R, Kim HJ, Achavananthadith S, Xiong Z, Lee JKW, Kong YL, Ho JS. Digitally-embroidered liquid metal electronic textiles for wearable wireless systems. Nat Commun 2022; 13:2190. [PMID: 35449159 PMCID: PMC9023486 DOI: 10.1038/s41467-022-29859-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 03/15/2022] [Indexed: 11/08/2022] Open
Abstract
Electronic textiles capable of sensing, powering, and communication can be used to non-intrusively monitor human health during daily life. However, achieving these functionalities with clothing is challenging because of limitations in the electronic performance, flexibility and robustness of the underlying materials, which must endure repeated mechanical, thermal and chemical stresses during daily use. Here, we demonstrate electronic textile systems with functionalities in near-field powering and communication created by digital embroidery of liquid metal fibers. Owing to the unique electrical and mechanical properties of the liquid metal fibers, these electronic textiles can conform to body surfaces and establish robust wireless connectivity with nearby wearable or implantable devices, even during strenuous exercise. By transferring optimized electromagnetic patterns onto clothing in this way, we demonstrate a washable electronic shirt that can be wirelessly powered by a smartphone and continuously monitor axillary temperature without interfering with daily activities.
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Affiliation(s)
- Rongzhou Lin
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
| | - Han-Joon Kim
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Sippanat Achavananthadith
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Ze Xiong
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Jason K W Lee
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119283, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117593, Singapore
- The N.1 Institute for Health, National University of Singapore, Singapore, 117456, Singapore
- Global Asia Institute, National University of Singapore, Singapore, 119076, Singapore
- Institute for Digital Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117456, Singapore
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, 117609, Singapore
| | - Yong Lin Kong
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT, 84112, USA.
| | - John S Ho
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore.
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583, Singapore.
- The N.1 Institute for Health, National University of Singapore, Singapore, 117456, Singapore.
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14
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Wang Y, Haick H, Guo S, Wang C, Lee S, Yokota T, Someya T. Skin bioelectronics towards long-term, continuous health monitoring. Chem Soc Rev 2022; 51:3759-3793. [PMID: 35420617 DOI: 10.1039/d2cs00207h] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Skin bioelectronics are considered as an ideal platform for personalised healthcare because of their unique characteristics, such as thinness, light weight, good biocompatibility, excellent mechanical robustness, and great skin conformability. Recent advances in skin-interfaced bioelectronics have promoted various applications in healthcare and precision medicine. Particularly, skin bioelectronics for long-term, continuous health monitoring offer powerful analysis of a broad spectrum of health statuses, providing a route to early disease diagnosis and treatment. In this review, we discuss (1) representative healthcare sensing devices, (2) material and structure selection, device properties, and wireless technologies of skin bioelectronics towards long-term, continuous health monitoring, (3) healthcare applications: acquisition and analysis of electrophysiological, biophysical, and biochemical signals, and comprehensive monitoring, and (4) rational guidelines for the design of future skin bioelectronics for long-term, continuous health monitoring. Long-term, continuous health monitoring of advanced skin bioelectronics will open unprecedented opportunities for timely disease prevention, screening, diagnosis, and treatment, demonstrating great promise to revolutionise traditional medical practices.
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Affiliation(s)
- Yan Wang
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong 515063, China.,Technion-Israel Institute of Technology (IIT), Haifa 32000, Israel.,Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan. .,Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong 515063, China
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Shuyang Guo
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan.
| | - Chunya Wang
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan.
| | - Sunghoon Lee
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan.
| | - Tomoyuki Yokota
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan.
| | - Takao Someya
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan.
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15
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Barbosa JA, Freitas VMS, Vidotto LHB, Schleder GR, de Oliveira RAG, da Rocha JF, Kubota LT, Vieira LCS, Tolentino HCN, Neckel IT, Gobbi AL, Santhiago M, Lima RS. Biocompatible Wearable Electrodes on Leaves toward the On-Site Monitoring of Water Loss from Plants. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22989-23001. [PMID: 35311272 DOI: 10.1021/acsami.2c02943] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Impedimetric wearable sensors are a promising strategy for determining the loss of water content (LWC) from leaves because they can afford on-site and nondestructive quantification of cellular water from a single measurement. Because the water content is a key marker of leaf health, monitoring of the LWC can lend key insights into daily practice in precision agriculture, toxicity studies, and the development of agricultural inputs. Ongoing challenges with this monitoring are the on-leaf adhesion, compatibility, scalability, and reproducibility of the electrodes, especially when subjected to long-term measurements. This paper introduces a set of sensing material, technological, and data processing solutions that overwhelm such obstacles. Mass-production-suitable electrodes consisting of stand-alone Ni films obtained by well-established microfabrication methods or ecofriendly pyrolyzed paper enabled reproducible determination of the LWC from soy leaves with optimized sensibilities of 27.0 (Ni) and 17.5 kΩ %-1 (paper). The freestanding design of the Ni electrodes was further key to delivering high on-leaf adhesion and long-term compatibility. Their impedances remained unchanged under the action of wind at velocities of up to 2.00 m s-1, whereas X-ray nanoprobe fluorescence assays allowed us to confirm the Ni sensor compatibility by the monitoring of the soy leaf health in an electrode-exposed area. Both electrodes operated through direct transfer of the conductive materials on hairy soy leaves using an ordinary adhesive tape. We used a hand-held and low-power potentiostat with wireless connection to a smartphone to determine the LWC over 24 h. Impressively, a machine-learning model was able to convert the sensing responses into a simple mathematical equation that gauged the impairments on the water content at two temperatures (30 and 20 °C) with reduced root-mean-square errors (0.1% up to 0.3%). These data suggest broad applicability of the platform by enabling direct determination of the LWC from leaves even at variable temperatures. Overall, our findings may help to pave the way for translating "sense-act" technologies into practice toward the on-site and remote investigation of plant drought stress. These platforms can provide key information for aiding efficient data-driven management and guiding decision-making steps.
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Affiliation(s)
- Júlia A Barbosa
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil
| | - Vitoria M S Freitas
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Faculty of Chemical Engineering, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Lourenço H B Vidotto
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Gabriel R Schleder
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Ricardo A G de Oliveira
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Jaqueline F da Rocha
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| | - Lauro T Kubota
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Luis C S Vieira
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Hélio C N Tolentino
- Brazilian Synchrotron Light Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Itamar T Neckel
- Brazilian Synchrotron Light Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Angelo L Gobbi
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
| | - Murilo Santhiago
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
| | - Renato S Lima
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil
- Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil
- Federal University of ABC, Santo André, São Paulo 09210-580, Brazil
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16
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17
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Truong TA, Nguyen TK, Zhao H, Nguyen NK, Dinh T, Park Y, Nguyen T, Yamauchi Y, Nguyen NT, Phan HP. Engineering Stress in Thin Films: An Innovative Pathway Toward 3D Micro and Nanosystems. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105748. [PMID: 34874620 DOI: 10.1002/smll.202105748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/23/2021] [Indexed: 06/13/2023]
Abstract
Transformation of conventional 2D platforms into unusual 3D configurations provides exciting opportunities for sensors, electronics, optical devices, and biological systems. Engineering material properties or controlling and modulating stresses in thin films to pop-up 3D structures out of standard planar surfaces has been a highly active research topic over the last decade. Implementation of 3D micro and nanoarchitectures enables unprecedented functionalities including multiplexed, monolithic mechanical sensors, vertical integration of electronics components, and recording of neuron activities in 3D organoids. This paper provides an overview on stress engineering approaches to developing 3D functional microsystems. The paper systematically presents the origin of stresses generated in thin films and methods to transform a 2D design into an out-of-plane configuration. Different types of 3D micro and nanostructures, along with their applications in several areas are discussed. The paper concludes with current technical challenges and potential approaches and applications of this fast-growing research direction.
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Affiliation(s)
- Thanh-An Truong
- Queensland Micro and Nanotechnology Centre, Griffith University, Nathan, Queensland, 4111, Australia
| | - Tuan-Khoa Nguyen
- Queensland Micro and Nanotechnology Centre, Griffith University, Nathan, Queensland, 4111, Australia
| | - Hangbo Zhao
- Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Nhat-Khuong Nguyen
- Queensland Micro and Nanotechnology Centre, Griffith University, Nathan, Queensland, 4111, Australia
| | - Toan Dinh
- Centre for Future Materials, University of Southern Queensland, Ipswich, Queensland, 4305, Australia
| | - Yoonseok Park
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Thanh Nguyen
- Centre for Future Materials, University of Southern Queensland, Ipswich, Queensland, 4305, Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Nam-Trung Nguyen
- Queensland Micro and Nanotechnology Centre, Griffith University, Nathan, Queensland, 4111, Australia
| | - Hoang-Phuong Phan
- Queensland Micro and Nanotechnology Centre, Griffith University, Nathan, Queensland, 4111, Australia
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18
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Saeki H, Tsunemi Y, Arai S, Ichiyama S, Katoh N, Kikuchi K, Kubo A, Terui T, Nakahara T, Futamura M, Murota H, Igarashi A. English version of guidelines for the management of asteatosis 2021 in Japan. J Dermatol 2021; 49:e77-e90. [PMID: 34970776 DOI: 10.1111/1346-8138.16293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/03/2021] [Accepted: 12/08/2021] [Indexed: 11/27/2022]
Abstract
This is the English version of guidelines for the management of asteatosis 2021 in Japan. Asteatosis is a synonym of xerosis found in a wide range of diseases that induce dry skin through impaired functions of either water retention of the stratum corneum or skin covering with acid mantle. Patients with asteatosis may be accompanied by pruritus. Moisturizers are the first-line treatment for asteatosis and their adequate use must be recommended. The main purpose of the present guidelines is to define skin symptoms requiring treatment with moisturizers for medical use in patients with asteatosis. If the deterioration of marked scaling or scratch marks is predicted, therapeutic intervention with moisturizers for medical use should be considered even in the absence of pruritus. Regarding six important points requiring decision-making in clinical practice (clinical questions), we evaluated the balance between the benefits and harm of medical interventions in reference to previous reports of clinical research, and presented the recommendation grades and evidence levels to optimize the patient outcome by medical interventions.
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Affiliation(s)
- Hidehisa Saeki
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Yuichiro Tsunemi
- Department of Dermatology, Saitama Medical University, Saitama, Japan
| | - Satoru Arai
- Department of Dermatology, St. Luke's International Hospital, Tokyo, Japan
| | - Susumu Ichiyama
- Department of Dermatology, Nippon Medical School, Tokyo, Japan
| | - Norito Katoh
- Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | | | - Akiharu Kubo
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tadashi Terui
- Division of Cutaneous Science, Department of Dermatology, Nihon University School of Medicine, Tokyo, Japan
| | - Takeshi Nakahara
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masaki Futamura
- Department of Pediatrics, National Hospital Organization Nagoya Medical Center, Nagoya, Japan.,Department of Allergy, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Hiroyuki Murota
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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19
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Yin M, Alexander Kim Z, Xu B. Micro/Nanofluidic‐Enabled Biomedical Devices: Integration of Structural Design and Manufacturing. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Mengtian Yin
- Department of Mechanical and Aerospace Engineering University of Virginia Charlottesville VA 22904 USA
| | - Zachary Alexander Kim
- Department of Mechanical and Aerospace Engineering University of Virginia Charlottesville VA 22904 USA
| | - Baoxing Xu
- Department of Mechanical and Aerospace Engineering University of Virginia Charlottesville VA 22904 USA
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20
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Wang F, Jin P, Feng Y, Fu J, Wang P, Liu X, Zhang Y, Ma Y, Yang Y, Yang A, Feng X. Flexible Doppler ultrasound device for the monitoring of blood flow velocity. SCIENCE ADVANCES 2021; 7:eabi9283. [PMID: 34705515 PMCID: PMC8550238 DOI: 10.1126/sciadv.abi9283] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 09/08/2021] [Indexed: 05/27/2023]
Abstract
Thrombosis and restenosis after vascular reconstruction procedures may cause complications such as stroke, but a clinical means to continuously monitor vascular conditions is lacking. Conventional ultrasound probes are rigid, particularly for postoperative patients with fragile skin. Techniques based on photoplethysmography or thermal analysis provide only relative changes in flow volume and have a shallow detection depth. Here, we introduce a flexible Doppler ultrasound device for the continuous monitoring of the absolute velocity of blood flow in deeply embedded arteries based on the Doppler effect. The device is thin (1 mm), lightweight (0.75 g), and skin conforming. When the dual-beam Doppler method is used, the influence of the Doppler angle on the velocity measurement is avoided. Experimental studies on ultrasound phantoms and human subjects demonstrate accurate measurement of the flow velocity. The wearable Doppler device has the potential to enhance the quality of care of patients after reconstruction surgery.
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Affiliation(s)
- Fengle Wang
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Peng Jin
- AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Yunlu Feng
- Department of Gastroenterology, Peking Union Medical College Hospital, Beijing 100730, China
| | - Ji Fu
- Institute of Flexible Electronics Technology of THU, Jiaxing 314000, 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
| | - Yingchao Zhang
- 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
| | - Yingyun Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Beijing 100730, China
| | - Aiming Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Beijing 100730, 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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21
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Zhou M, Qi Z, Xia Z, Li Y, Ling W, Yang J, Yang Z, Pei J, Wu D, Huo W, Huang X. Miniaturized soft centrifugal pumps with magnetic levitation for fluid handling. SCIENCE ADVANCES 2021; 7:eabi7203. [PMID: 34705505 PMCID: PMC8550243 DOI: 10.1126/sciadv.abi7203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Centrifugal pumps are essential mechanical components for liquid delivery in many biomedical systems whose miniaturization can promote innovative disease treatment approaches. However, centrifugal pumps are predominately constructed by rigid and bulky components. Here, we combine the soft materials and flexible electronics to achieve soft magnetic levitation micropumps (SMLMs) that are only 1.9 to 12.8 grams in weight. The SMLMs that rotate at a rotation speed of 1000 revolutions per min to pump liquids with various viscosities ranging from 1 to 6 centipoise can be used in assisting dialysis, blood circulation, and skin temperature control because of excellent biocompatibility with no organ damage. The development of SMLMs not only demonstrates the possibility to replace rigid rotating structures with soft materials for handling large volumes of fluids but also indicates the potential for fully flexible artificial organs that may revolutionize health care and improve the well-being of patients.
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Affiliation(s)
- Mingxing Zhou
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Zhijie Qi
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Zhiqiang Xia
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Ya Li
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Wei Ling
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Jingxuan Yang
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Zhen Yang
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Ji Pei
- National Research Center of Pumps, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Dazhuan Wu
- College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China
| | - Wenxing Huo
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
- Corresponding author. (W.H.); (X.H.)
| | - Xian Huang
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
- Corresponding author. (W.H.); (X.H.)
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22
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Cheng X, Zhang F, Bo R, Shen Z, Pang W, Jin T, Song H, Xue Z, Zhang Y. An Anti-Fatigue Design Strategy for 3D Ribbon-Shaped Flexible Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102684. [PMID: 34342056 DOI: 10.1002/adma.202102684] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/03/2021] [Indexed: 06/13/2023]
Abstract
Three-dimensional (3D) flexible electronics represent an emerging area of intensive attention in recent years, owing to their broad-ranging applications in wearable electronics, flexible robots, tissue/cell scaffolds, among others. The widely adopted 3D conductive mesostructures in the functional device systems would inevitably undergo repetitive out-of-plane compressions during practical operations, and thus, anti-fatigue design strategies are of great significance to improve the reliability of 3D flexible electronics. Previous studies mainly focused on the fatigue failure behavior of planar ribbon-shaped geometries, while anti-fatigue design strategies and predictive failure criteria addressing 3D ribbon-shaped mesostructures are still lacking. This work demonstrates an anti-fatigue strategy to significantly prolong the fatigue life of 3D ribbon-shaped flexible electronics by switching the metal-dominated failure to desired polymer-dominated failure. Combined in situ measurements and computational studies allow the establishment of a failure criterion capable of accurately predicting fatigue lives under out-of-plane compressions, thereby providing useful guidelines for the design of anti-fatigue mesostructures with diverse 3D geometries. Two mechanically reliable 3D devices, including a resistance-type vibration sensor and a janus sensor capable of decoupled temperature measurements, serve as two demonstrative examples to highlight potential applications in long-term health monitoring and human-like robotic perception, respectively.
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Affiliation(s)
- Xu Cheng
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Fan Zhang
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Renheng Bo
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhangming Shen
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Wenbo Pang
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Tianqi Jin
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Honglie Song
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhaoguo Xue
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Yihui Zhang
- Key Laboratory of Applied Mechanics of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
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23
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Flament F, Galliano A, Abric A, Matoschitz CM, Bammer M, Kampus M, Kanda-Diwidi D, Chibout S, Cassier M, Delaunay C. Skin moisture assessment using Hydration Sensor Patches coupled with smartphones via Near Field Communication (NFC). A pilot study with the first generation of patches that allow self-recordings of skin hydration. Skin Res Technol 2021; 27:959-965. [PMID: 33998713 DOI: 10.1111/srt.13049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 03/23/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To evaluate the potency of a new skin hydration sensor patch in the fast self-recording of skin hydration. MATERIAL AND METHODS The Skin Hydration Sensor Patch (SHSP) turns the user's smartphone into a wireless skin moisture measuring device. The SHSP combines a capacitive measurement unit and Near Field Communication technology (NFC) for transmitting data and energy. The probe is fixed onto the back of the smartphone and pressed to the skin for a few seconds where the application immediately calculates the capacitance value. Once recorded, the probe is then immediately taken off from the skin. In a first study, this system was compared to the Corneometer® technique, in vivo, on various skin sites of 23 healthy French women. In a second study, 20 women with moderate dry skin on face and forearm self-recorded, through the SHSP the changes in skin hydration induced by a Xanthan gel containing 3% (w/w) of Glycerol, along 24 hours. A questionnaire based on 5 types of questions was established to be filled by subjects about their perception of the use of this new system. RESULTS In the first study, the values recorded by the SHSP were found highly correlated with those provided by the Corneometer® . The second study allowed to observe significant differences in skin hydration of both sites at all times, as compared to values obtained before the application of the gel. Differences between both sites were observed, the face being less hydrated than forearm. From a practical aspect, the self-recordings on the face show a higher variability (approx. 10% than those of the forearm). The questionnaire led to positive answers on almost all points. CONCLUSION This SHSP appears as a promising approach in the field of connected skin-related devices. As such, it opens or enlarges a new paradigm in the relationships between a consumer and a cosmetic product.
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Affiliation(s)
| | | | | | | | - Manfred Bammer
- AIT - Austrian Institute of Technology, Wr. Neustadt, Austria
| | - Miha Kampus
- USP Indicator Solutions, Klagenfurt, Austria
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24
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Flament F, Maudet A, Ye C, Zhang Y, Jiang R, Dubosc S, Even M, Tournery S, Abric A, De Boni M, Delaunay C, Aarabi P. Comparing the self-perceived effects of a facial anti-aging product to those automatically detected from selfie images of Chinese women of different ages and cities. Skin Res Technol 2021; 27:880-890. [PMID: 33822402 DOI: 10.1111/srt.13037] [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: 11/05/2020] [Accepted: 03/11/2021] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To assess the agreement, after 1-month application of a popular and efficient anti-aging product, between self-perceived facial signs of aging and those detected and graded by an automatic A.I-based system, using smartphones' selfie images. MATERIAL AND METHODS Of 1065 Chinese women, aged 18-60 years, from eight different Chinese cities were recruited. They were asked to apply daily, for 1 month, a referential anti-aging product onto their whole face. Selfie images were taken by all subjects at D0 and D28 and sent to our facilities for being analyzed through 10 different facial signs. At D28 , all subjects were asked to fill a questionnaire on the status of their faces, through six general statements. RESULTS A global agreement between both approaches is reached, particularly among women older than 40 years where the severity of facial signs is already more pronounced or among younger women who present at least facial signs scored above one grading units. This limit becomes, therefore, a prerequisite in the recruitment of Chinese subjects in the case of anti-aging applied studies and possible automatically based on automatic grading system. When respecting such conditions, the positive effects of the product on most facial signs can be demonstrated after 28 days of successive applications. CONCLUSION Such methodological approach paves the road in fulfilling the need of consumers of a better transparency in the claims of an anti-aging product.
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Affiliation(s)
| | | | - Chengda Ye
- L'Oréal Research and Innovation, Shanghai, China
| | - Yuze Zhang
- ModiFace, A L'Oréal Group Company, Toronto, ON, Canada
| | - Ruowei Jiang
- ModiFace, A L'Oréal Group Company, Toronto, ON, Canada
| | | | - Maxime Even
- Lancôme International, Levallois-Perret, France
| | | | | | | | | | - Parham Aarabi
- ModiFace, A L'Oréal Group Company, Toronto, ON, Canada
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