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Colachis M, Schlink BR, Colachis S, Shqau K, Huegen BL, Palmer K, Heintz A. Benchtop Performance of Novel Mixed Ionic-Electronic Conductive Electrode Form Factors for Biopotential Recordings. SENSORS (BASEL, SWITZERLAND) 2024; 24:3136. [PMID: 38793990 PMCID: PMC11125343 DOI: 10.3390/s24103136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/02/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
Background: Traditional gel-based (wet) electrodes for biopotential recordings have several shortcomings that limit their practicality for real-world measurements. Dry electrodes may improve usability, but they often suffer from reduced signal quality. We sought to evaluate the biopotential recording properties of a novel mixed ionic-electronic conductive (MIEC) material for improved performance. Methods: We fabricated four MIEC electrode form factors and compared their signal recording properties to two control electrodes, which are electrodes commonly used for biopotential recordings (Ag-AgCl and stainless steel). We used an agar synthetic skin to characterize the impedance of each electrode form factor. An electrical phantom setup allowed us to compare the recording quality of simulated biopotentials with ground-truth sources. Results: All MIEC electrode form factors yielded impedances in a similar range to the control electrodes (all <80 kΩ at 100 Hz). Three of the four MIEC samples produced similar signal-to-noise ratios and interfacial charge transfers as the control electrodes. Conclusions: The MIEC electrodes demonstrated similar and, in some cases, better signal recording characteristics than current state-of-the-art electrodes. MIEC electrodes can also be fabricated into a myriad of form factors, underscoring the great potential this novel material has across a wide range of biopotential recording applications.
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Affiliation(s)
- Matthew Colachis
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Bryan R. Schlink
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Sam Colachis
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Krenar Shqau
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Brittani L. Huegen
- UES, a BlueHalo Company, 4401 Dayton Xenia Road, Beavercreek, OH 45432, USA;
| | - Katherine Palmer
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Amy Heintz
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
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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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Arché-Núñez A, Krebsbach P, Levit B, Possti D, Gerston A, Knoll T, Velten T, Bar-Haim C, Oz S, Klorfeld-Auslender S, Hernandez-Sosa G, Mirelman A, Hanein Y. Bio-potential noise of dry printed electrodes: physiology versus the skin-electrode impedance. Physiol Meas 2023; 44:095006. [PMID: 37607562 DOI: 10.1088/1361-6579/acf2e7] [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: 06/19/2023] [Accepted: 08/22/2023] [Indexed: 08/24/2023]
Abstract
Objective. To explore noise characteristics and the effect physiological activity has on the link between impedance and noise.Approach. Dry-printed electrodes are emerging as a new and exciting technology for skin electro-physiology. Such electrode arrays offer many advantages including user convenience, quick placement, and high resolution. Here we analyze extensive electro-physiological data recorded from the arm and the face to study and quantify the noise of dry electrodes, and to characterize the link between noise and impedance. In particular, we studied the effect of the physiological state of the subject (e.g. rapid eye movement sleep) on noise.Main results. We show that baseline noise values extracted from dry electrodes in the arm are in agreement with the Nyquist equation. In the face, on the other hand, the measured noise values were higher than the values predicted by the Nyquist equation. In addition, we studied how different electrode properties affect performances, including electrode size, shape, and material properties.Significance. Altogether, the results presented here provide a basis for understanding dry electrode performances and substantiate their great potential in electro-physiological investigations.
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Affiliation(s)
- Ana Arché-Núñez
- Madrid Institute of Advanced Research in Nanoscience (IMDEA Nanociencia), Madrid, Spain
| | - Peter Krebsbach
- Light Technology Institute, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- InnovationLab, Heidelberg, Germany
| | - Bara Levit
- School of Electrical Engineering, Tel Aviv University, Tel Aviv, Israel
| | | | | | - Thorsten Knoll
- Fraunhofer Institute of Biomedical Engineering IBMT, Sulzbach, Germany
| | - Thomas Velten
- Fraunhofer Institute of Biomedical Engineering IBMT, Sulzbach, Germany
| | - Chen Bar-Haim
- School of Electrical Engineering, Tel Aviv University, Tel Aviv, Israel
| | - Shani Oz
- Department of BioMedical Engineering, Tel Aviv University, Tel Aviv, Israel
- Laboratory for Early Markers of Neurodegeneration, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | | | - Gerardo Hernandez-Sosa
- Light Technology Institute, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- InnovationLab, Heidelberg, Germany
- Institue of Microstructure, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Anat Mirelman
- Laboratory for Early Markers of Neurodegeneration, Neurological Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yael Hanein
- School of Electrical Engineering, Tel Aviv University, Tel Aviv, Israel
- X-trodes, Herzliya, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
- Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, Israel
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Zhang Q, Ji K, Huo T, Khan MN, Hu Z, Yuan C, Zhao J, Chen J, Wang Z, Dai Z. Biomimetic Patch with Wicking-Breathable and Multi-mechanism Adhesion for Bioelectrical Signal Monitoring. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48438-48448. [PMID: 36259961 DOI: 10.1021/acsami.2c13984] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Wearable bioelectrical monitoring devices can provide long-term human health information such as electrocardiogram and other physiological signals. It is a crucial part of the remote medical system. These can provide prediction for the diagnosis and treatment of cardiovascular disease and access to timely treatment. However, the patch comfort of the wearable monitoring devices in long-term contact with the skin have been a technical bottleneck of the hardware. In this study, the biomimetic patch with wicking-breathable and multi-mechanism adhesion performance to achieve adaptability and comfortability to human skin has been reported. The patch was designed based on a conical through-hole and hexagonal microgroove to directionally transport sweat from skin to air which gives the patch the breathable performance. The breathable and drainage capability of the biomimetic patch was experimentally verified by analyzing the conical through-hole and hexagonal microgroove with the structural mechanism of wicking. Multi-mechanism adhesion of the Ag/Ni microneedle array and PDMS-t adhesion material ensures the stability of patch signal acquisition. This study provides a new way for enhancing the breathability and adaptability of the patch to realize accurate bioelectrical signal monitoring under sweat conditions on human skin.
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Affiliation(s)
- Qian Zhang
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Keju Ji
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Tingwei Huo
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Muhammad Niaz Khan
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhuoyang Hu
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Cong Yuan
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Jiahui Zhao
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Jian Chen
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Zhouyi Wang
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Zhendong Dai
- Jiangsu Provincial Key Laboratory of Bionic Functional Materials, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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Pérez D, Orozco J. Wearable electrochemical biosensors to measure biomarkers with complex blood-to-sweat partition such as proteins and hormones. Mikrochim Acta 2022; 189:127. [PMID: 35233646 PMCID: PMC8886869 DOI: 10.1007/s00604-022-05228-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/14/2022] [Indexed: 11/24/2022]
Abstract
Smart electronic devices based on micro-controllers, also referred to as fashion electronics, have raised wearable technology. These devices may process physiological information to facilitate the wearer's immediate biofeedback in close contact with the body surface. Standard market wearable devices detect observable features as gestures or skin conductivity. In contrast, the technology based on electrochemical biosensors requires a biomarker in close contact with both a biorecognition element and an electrode surface, where electron transfer phenomena occur. The noninvasiveness is pivotal for wearable technology; thus, one of the most common target tissues for real-time monitoring is the skin. Noninvasive biosensors formats may not be available for all analytes, such as several proteins and hormones, especially when devices are installed cutaneously to measure in the sweat. Processes like cutaneous transcytosis, the paracellular cell–cell unions, or even reuptake highly regulate the solutes content of the sweat. This review discusses recent advances on wearable devices based on electrochemical biosensors for biomarkers with a complex blood-to-sweat partition like proteins and some hormones, considering the commented release regulation mechanisms to the sweat. It highlights the challenges of wearable epidermal biosensors (WEBs) design and the possible solutions. Finally, it charts the path of future developments in the WEBs arena in converging/emerging digital technologies.
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Affiliation(s)
- David Pérez
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67, Nº 52-20, 050010, Medellín, Colombia.
| | - Jahir Orozco
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67, Nº 52-20, 050010, Medellín, Colombia.
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Cipollina C, Bruno A, Fasola S, Cristaldi M, Patella B, Inguanta R, Vilasi A, Aiello G, La Grutta S, Torino C, Pace E. Cellular and Molecular Signatures of Oxidative Stress in Bronchial Epithelial Cell Models Injured by Cigarette Smoke Extract. Int J Mol Sci 2022; 23:1770. [PMID: 35163691 PMCID: PMC8836577 DOI: 10.3390/ijms23031770] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 02/06/2023] Open
Abstract
Exposure of the airways epithelium to environmental insults, including cigarette smoke, results in increased oxidative stress due to unbalance between oxidants and antioxidants in favor of oxidants. Oxidative stress is a feature of inflammation and promotes the progression of chronic lung diseases, including Chronic Obstructive Pulmonary Disease (COPD). Increased oxidative stress leads to exhaustion of antioxidant defenses, alterations in autophagy/mitophagy and cell survival regulatory mechanisms, thus promoting cell senescence. All these events are amplified by the increase of inflammation driven by oxidative stress. Several models of bronchial epithelial cells are used to study the molecular mechanisms and the cellular functions altered by cigarette smoke extract (CSE) exposure, and to test the efficacy of molecules with antioxidant properties. This review offers a comprehensive synthesis of human in-vitro and ex-vivo studies published from 2011 to 2021 describing the molecular and cellular mechanisms evoked by CSE exposure in bronchial epithelial cells, the most used experimental models and the mechanisms of action of cellular antioxidants systems as well as natural and synthetic antioxidant compounds.
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Affiliation(s)
- Chiara Cipollina
- Ri.MED Foundation, 90133 Palermo, Italy; (C.C.); (M.C.)
- Institute for Biomedical Research and Innovation, National Research Council, 90146 Palermo, Italy; (A.B.); (S.F.); (S.L.G.); (E.P.)
| | - Andreina Bruno
- Institute for Biomedical Research and Innovation, National Research Council, 90146 Palermo, Italy; (A.B.); (S.F.); (S.L.G.); (E.P.)
- Institute of Translational Pharmacology, National Research Council, 90146 Palermo, Italy
| | - Salvatore Fasola
- Institute for Biomedical Research and Innovation, National Research Council, 90146 Palermo, Italy; (A.B.); (S.F.); (S.L.G.); (E.P.)
- Institute of Translational Pharmacology, National Research Council, 90146 Palermo, Italy
| | | | - Bernardo Patella
- Department of Engineering, University of Palermo, 90128 Palermo, Italy; (B.P.); (R.I.); (G.A.)
| | - Rosalinda Inguanta
- Department of Engineering, University of Palermo, 90128 Palermo, Italy; (B.P.); (R.I.); (G.A.)
| | - Antonio Vilasi
- Institute of Clinical Physiology, National Research Council, 89124 Reggio Calabria, Italy;
| | - Giuseppe Aiello
- Department of Engineering, University of Palermo, 90128 Palermo, Italy; (B.P.); (R.I.); (G.A.)
| | - Stefania La Grutta
- Institute for Biomedical Research and Innovation, National Research Council, 90146 Palermo, Italy; (A.B.); (S.F.); (S.L.G.); (E.P.)
- Institute of Translational Pharmacology, National Research Council, 90146 Palermo, Italy
| | - Claudia Torino
- Institute of Clinical Physiology, National Research Council, 89124 Reggio Calabria, Italy;
| | - Elisabetta Pace
- Institute for Biomedical Research and Innovation, National Research Council, 90146 Palermo, Italy; (A.B.); (S.F.); (S.L.G.); (E.P.)
- Institute of Translational Pharmacology, National Research Council, 90146 Palermo, Italy
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