{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T16:33:44Z","timestamp":1781886824580,"version":"3.54.5"},"reference-count":110,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2020,6,29]],"date-time":"2020-06-29T00:00:00Z","timestamp":1593388800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["Grant No. 61971262"],"award-info":[{"award-number":["Grant No. 61971262"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2020A1515010618"],"award-info":[{"award-number":["2020A1515010618"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the Chinese Postdoctoral Science Foundation","award":["Grant No. 2019M650661"],"award-info":[{"award-number":["Grant No. 2019M650661"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Bioelectrical or electrophysiological signals generated by living cells or tissues during daily physiological activities are closely related to the state of the body and organ functions, and therefore are widely used in clinical diagnosis, health monitoring, intelligent control and human-computer interaction. Ag\/AgCl electrodes with wet conductive gels are widely used to pick up these bioelectrical signals using electrodes and record them in the form of electroencephalograms, electrocardiograms, electromyography, electrooculograms, etc. However, the inconvenience, instability and infection problems resulting from the use of gel with Ag\/AgCl wet electrodes can\u2019t meet the needs of long-term signal acquisition, especially in wearable applications. Hence, focus has shifted toward the study of dry electrodes that can work without gels or adhesives. In this paper, a retrospective overview of the development of dry electrodes used for monitoring bioelectrical signals is provided, including the sensing principles, material selection, device preparation, and measurement performance. In addition, the challenges regarding the limitations of materials, fabrication technologies and wearable performance of dry electrodes are discussed. Finally, the development obstacles and application advantages of different dry electrodes are analyzed to make a comparison and reveal research directions for future studies.<\/jats:p>","DOI":"10.3390\/s20133651","type":"journal-article","created":{"date-parts":[[2020,6,29]],"date-time":"2020-06-29T11:17:17Z","timestamp":1593429437000},"page":"3651","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":202,"title":["Dry Electrodes for Human Bioelectrical Signal Monitoring"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6591-0895","authenticated-orcid":false,"given":"Yulin","family":"Fu","sequence":"first","affiliation":[{"name":"Tsinghua Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen, Shenzhen 518055, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingjing","family":"Zhao","sequence":"additional","affiliation":[{"name":"Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, University Town of Shenzhen, Shenzhen 518055, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Dong","sequence":"additional","affiliation":[{"name":"Tsinghua Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen, Shenzhen 518055, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaohao","family":"Wang","sequence":"additional","affiliation":[{"name":"Tsinghua Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen, Shenzhen 518055, China"},{"name":"Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, University Town of Shenzhen, Shenzhen 518055, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,29]]},"reference":[{"key":"ref_1","unstructured":"Xie, S.B. (1982). The Mystery of Bioelectricity, Science Popularization Press."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/j.knosys.2013.02.014","article-title":"Automated EEG analysis of epilepsy: A review","volume":"45","author":"Acharya","year":"2013","journal-title":"Knowl.-Based Syst."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"327","DOI":"10.1016\/j.clinbiomech.2009.01.010","article-title":"Surface EMG based muscle fatigue evaluation in biomechanics","volume":"24","author":"Cifrek","year":"2009","journal-title":"Clin. Biomech."},{"key":"ref_4","unstructured":"Li, Y.J. (2009). Application of Eeg Analysis Method, Science Press."},{"key":"ref_5","unstructured":"Guo, S. (2009). Study on ECG Signal Denoising and Feature Recognition Algorithm. [Master\u2019s Thesis, Central South University]."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1016\/j.sna.2006.06.013","article-title":"A dry electrophysiology electrode using CNT arrays","volume":"132","author":"Ruffini","year":"2006","journal-title":"Sens. Actuators A"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Prutchi, D., and Norris, M. (2005). Design and Development of Medical Electronic Instrumentation, John Wiley & Sons, Inc.","DOI":"10.1002\/0471681849"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1109\/10.821734","article-title":"A micropower dry-electrode ECG preamplifier","volume":"47","author":"Burke","year":"2000","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"R47","DOI":"10.1088\/0967-3334\/34\/9\/R47","article-title":"Dry electrodes for electrocardiography","volume":"34","author":"Meziane","year":"2013","journal-title":"Physiol. Meas."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1109\/RBME.2010.2084078","article-title":"Dry-contact and noncontact biopotential electrodes: Methodological review","volume":"3","author":"Chi","year":"2010","journal-title":"IEEE Rev. Biomed. Eng."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"12847","DOI":"10.3390\/s140712847","article-title":"Dry EEG Electrodes","volume":"14","author":"Morillo","year":"2014","journal-title":"Sensors"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"577","DOI":"10.1109\/JSEN.2019.2944847","article-title":"A Mini Review of Microneedle Array Electrode for Bio-Signal Recording: A Review","volume":"20","author":"Ren","year":"2020","journal-title":"IEEE Sens. J."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"479","DOI":"10.3390\/electronics8050479","article-title":"Wearable and Flexible Textile Electrodes for Biopotential Signal Monitoring: A review","volume":"8","author":"Acar","year":"2019","journal-title":"Electronics"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1016\/j.jconrel.2017.02.011","article-title":"Microneedle, bio-microneedle and bio-inspired microneedle: A review","volume":"251","author":"Ma","year":"2017","journal-title":"J. Control. Release"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1989","DOI":"10.1007\/s11095-014-1301-y","article-title":"Hydrogel-forming microneedle arrays can be effectively inserted in skin by self-application: A pilot study centred on pharmacist intervention and a patient information leaflet","volume":"31","author":"Donnelly","year":"2014","journal-title":"Pharm. Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1109\/84.911086","article-title":"Micromachined electrodes for biopotential measurements","volume":"10","author":"Griss","year":"2001","journal-title":"J. Microelectromech. Syst."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2435","DOI":"10.1007\/s11432-011-4354-0","article-title":"Dry electrode for the measurement of biopotential signals","volume":"54","author":"Wang","year":"2011","journal-title":"Sci. Chin. Inf. Sci."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"972","DOI":"10.1016\/j.medengphy.2011.11.002","article-title":"Wireless instrumentation system based on dry electrodes for acquiring EEG signals","volume":"34","author":"Dias","year":"2012","journal-title":"Med. Eng. Phys."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"750","DOI":"10.1016\/j.snb.2017.01.052","article-title":"A microneedle electrode array on flexible substrate for long-term EEG monitoring","volume":"244","author":"Wang","year":"2017","journal-title":"Sens. Actuators B-Chem."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1016\/j.sna.2012.04.037","article-title":"Microneedle-based electrodes with integrated through-silicon via for biopotential recording","volume":"186","author":"Pini","year":"2012","journal-title":"Sens. Actuators A"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"12370","DOI":"10.3390\/s140712370","article-title":"Developing Barbed Microtip-Based Electrode Arrays for Biopotential Measurement","volume":"14","author":"Hsu","year":"2014","journal-title":"Sensors"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1737","DOI":"10.1016\/j.mee.2007.01.243","article-title":"Micropatterned dry electrodes for brain\u2013computer interface","volume":"84","author":"Matteucci","year":"2007","journal-title":"Microelectron. Eng."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1136","DOI":"10.1109\/TBME.2015.2485269","article-title":"A Motion Interference-Insensitive Flexible Dry Electrode","volume":"63","author":"Zhang","year":"2016","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1016\/j.sna.2012.04.019","article-title":"Preliminary technological assessment of microneedles-based dry electrodes for biopotential monitoring in clinical examinations","volume":"180","author":"Forvi","year":"2012","journal-title":"Sens. Actuators A"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1167","DOI":"10.1109\/JPROC.2008.922561","article-title":"Noninvasive Neural Prostheses Using Mobile and Wireless EEG","volume":"96","year":"2008","journal-title":"Proc. IEEE"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"735","DOI":"10.1016\/j.msec.2019.02.015","article-title":"Low melting point metal-based flexible 3D biomedical microelectrode array by phase transition method","volume":"99","author":"Guo","year":"2019","journal-title":"Mater. Sci. Eng. C Mater. Biol. Appl."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.sna.2017.10.042","article-title":"Flexible microneedle array electrode using magnetorheological drawing lithography for bio-signal monitoring","volume":"268","author":"Ren","year":"2017","journal-title":"Sens. Actuators A"},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Ren, L., Jiang, Q., Chen, K.Y., Chen, Z.P., Pan, C.F., and Jiang, L.L. (2016). Fabrication of a Micro-Needle Array Electrode by Thermal Drawing for Bio-Signals Monitoring. Sensors, 16.","DOI":"10.3390\/s16060908"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1016\/j.sna.2015.10.041","article-title":"Long term biopotential recording by body conformable photolithography fabricated low cost polymeric microneedle arrays","volume":"236","author":"Srivastava","year":"2015","journal-title":"Sens. Actuators A"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Sun, Y.W., Ren, L., Jiang, L.L., Tang, Y., and Liu, B. (2018). Fabrication of Composite Microneedle Array Electrode for Temperature and Bio-Signal Monitoring. Sensors, 18.","DOI":"10.3390\/s18041193"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"16265","DOI":"10.3390\/s150716265","article-title":"Curved Microneedle Array-Based sEMG Electrode for Robust Long-Term Measurements and High Selectivity","volume":"15","author":"Kim","year":"2015","journal-title":"Sensors"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"5819","DOI":"10.3390\/s110605819","article-title":"Design, fabrication and experimental validation of a novel dry-contact sensor for measuring electroencephalography signals without skin preparation","volume":"11","author":"Liao","year":"2011","journal-title":"Sensors"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"740","DOI":"10.1016\/j.msec.2017.05.114","article-title":"Fabrication of chitosan\/Au-TiO2 nanotube-based dry electrodes for electroencephalography recording","volume":"79","author":"Song","year":"2017","journal-title":"Mater. Sci. Eng. C Mater. Biol. Appl."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1016\/j.sna.2014.10.010","article-title":"Multichannel EEG with novel Ti\/TiN dry electrodes","volume":"221","author":"Fiedler","year":"2015","journal-title":"Sens. Actuators A"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1016\/j.corsci.2011.11.008","article-title":"TiNx coated polycarbonate for bio-electrode applications","volume":"56","author":"Pedrosa","year":"2012","journal-title":"Corros. Sci."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"150","DOI":"10.1109\/TBME.2018.2835778","article-title":"Dry-Contact Electrode Ear-EEG","volume":"66","author":"Kappel","year":"2019","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"2824","DOI":"10.1109\/TBME.2013.2264956","article-title":"A study of evoked potentials from ear-EEG","volume":"60","author":"Kidmose","year":"2013","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"21184","DOI":"10.1021\/acsami.8b06484","article-title":"Flexible Conductive Composite Integrated with Personal Earphone for Wireless, Real-Time Monitoring of Electrophysiological Signs","volume":"10","author":"Lee","year":"2018","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"11627","DOI":"10.1039\/C4RA15101A","article-title":"Wearable silver nanowire dry electrodes for electrophysiological sensing","volume":"5","author":"Myers","year":"2015","journal-title":"RSC Adv."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"1750","DOI":"10.3390\/s150101750","article-title":"Embroidered electrode with silver\/titanium coating for long-term ECG monitoring","volume":"15","author":"Weder","year":"2015","journal-title":"Sensors"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1002\/adhm.201601159","article-title":"A Wearable Hydration Sensor with Conformal Nanowire Electrodes","volume":"6","author":"Yao","year":"2017","journal-title":"Adv. Healthc. Mater."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"6806","DOI":"10.1039\/C7NR09570H","article-title":"Electrohydrodynamic printing of silver nanowires for flexible and stretchable electronics","volume":"10","author":"Cui","year":"2018","journal-title":"Nanoscale"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"20789","DOI":"10.1109\/ACCESS.2019.2897590","article-title":"Electrocardiogram of a Silver Nanowire Based Dry Electrode: Quantitative Comparison With the Standard Ag\/AgCl Gel Electrode","volume":"7","author":"Qin","year":"2019","journal-title":"IEEE Access"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1088\/1361-6463\/ab3869","article-title":"Screen printed silver nanowire and graphene oxide hybrid transparent electrodes for long-term electrocardiography monitoring","volume":"52","author":"Xu","year":"2019","journal-title":"J. Phys. D Appl. Phys."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1007\/s13391-019-00125-y","article-title":"Conformable, Thin, and Dry Electrode for Electrocardiography Using Composite of Silver Nanowires and Polyvinyl Butyral","volume":"15","author":"Choi","year":"2019","journal-title":"Electron. Mater. Lett."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1002\/adfm.201803279","article-title":"Self-Adhesive and Ultra-Conformable, Sub-300 nm Dry Thin-Film Electrodes for Surface Monitoring of Biopotentials","volume":"28","author":"Nawrocki","year":"2018","journal-title":"Adv. Funct. Mater."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"348","DOI":"10.1016\/j.sna.2018.09.045","article-title":"Soft pin-shaped dry electrode with bristles for EEG signal measurements","volume":"283","author":"Gao","year":"2018","journal-title":"Sens. Actuators A"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"3027","DOI":"10.1002\/adma.200904426","article-title":"Polymer-Embedded Carbon Nanotube Ribbons for Stretchable Conductors","volume":"22","author":"Zhang","year":"2010","journal-title":"Adv. Mater."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1007\/s13206-012-6112-9","article-title":"Shear induced CNT\/PDMS conducting thin film for electrode cardiogram (ECG) electrode","volume":"6","author":"Lee","year":"2012","journal-title":"BioChip J."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"1472","DOI":"10.1109\/TBME.2012.2190288","article-title":"CNT\/PDMS Composite Flexible Dry Electrodes for Long-Term ECG Monitoring","volume":"59","author":"Jung","year":"2012","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1016\/j.sna.2015.09.024","article-title":"Flexible dry electrode based on carbon nanotube\/polymer hybrid micropillars for biopotential recording","volume":"235","author":"Peng","year":"2015","journal-title":"Sens.Actuators A"},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1016\/j.sbsr.2018.05.001","article-title":"Development of printed and flexible dry ECG electrodes","volume":"20","author":"Chlaihawi","year":"2018","journal-title":"Sens. Bio-Sens. Res."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"4770","DOI":"10.1021\/acsnano.6b01355","article-title":"Bioinspired, Highly Stretchable, and Conductive Dry Adhesives Based on 1D-2D Hybrid Carbon Nanocomposites for All-in-One ECG Electrodes","volume":"10","author":"Kim","year":"2016","journal-title":"ACS Nano"},{"key":"ref_54","first-page":"17500","article-title":"Wearable Resistive Pressure Sensor Based on Highly Flexible Carbon Composite Conductors with Irregular Surface Morphology","volume":"9","author":"Kim","year":"2017","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1002\/adhm.201700495","article-title":"Efficient Skin Temperature Sensor and Stable Gel-Less Sticky ECG Sensor for a Wearable Flexible Healthcare Patch","volume":"6","author":"Yamamoto","year":"2017","journal-title":"Adv. Healthc. Mater."},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Chi, M., Zhao, J.J., Dong, Y., and Wang, X.H. (2019). Flexible Carbon Nanotube-Based Polymer Electrode for Long-Term Electrocardiographic Recording. Materials, 12.","DOI":"10.3390\/ma12060971"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"123751","DOI":"10.1016\/j.colsurfa.2019.123751","article-title":"Carbon nanotube, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) and Ag nanoparticle doped gelatin based electro-active hydrogel systems","volume":"580","author":"Polat","year":"2019","journal-title":"Colloids Surf. A"},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1088\/1361-665X\/ab06e0","article-title":"PU nanoweb-based textile electrode treated with single-walled carbon nanotube\/silver nanowire and its application to ECG monitoring","volume":"28","author":"Lee","year":"2019","journal-title":"Smart Mater. Struct."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"5S","DOI":"10.7567\/JJAP.57.05GD02","article-title":"Wearable carbon nanotube based dry-electrodes for electrophysiological sensors","volume":"57","author":"Kang","year":"2018","journal-title":"Jpn. J. Appl. Phys."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"1469","DOI":"10.1016\/j.snb.2015.07.111","article-title":"Graphene-clad textile electrodes for electrocardiogram monitoring","volume":"221","author":"Yapici","year":"2015","journal-title":"Sens. Actuators B-Chem."},{"key":"ref_61","doi-asserted-by":"crossref","unstructured":"Lou, C.G., Li, R.K., Li, Z.P., Liang, T., Wei, Z.H., Run, M.T., Yan, X.B., and Liu, X.L. (2016). Flexible Graphene Electrodes for Prolonged Dynamic ECG Monitoring. Sensors, 16.","DOI":"10.3390\/s16111833"},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"7634","DOI":"10.1021\/acsnano.7b02182","article-title":"Graphene Electronic Tattoo Sensors","volume":"11","author":"Ameri","year":"2017","journal-title":"ACS Nano"},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1016\/j.mee.2017.05.048","article-title":"Chemically reduced graphene oxide-based dry electrodes as touch sensor for electrocardiograph measurement","volume":"180","author":"Das","year":"2017","journal-title":"Microelectron. Eng."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"11640","DOI":"10.1039\/C7TC03669H","article-title":"All inkjet-printed graphene-based conductive patterns for wearable e-textile applications","volume":"5","author":"Karim","year":"2017","journal-title":"J. Mater. Chem. C"},{"key":"ref_65","doi-asserted-by":"crossref","unstructured":"Yapici, M.K., and Alkhidir, T.E. (2017). Intelligent Medical Garments with Graphene-Functionalized Smart-Cloth ECG Sensors. Sensors, 17.","DOI":"10.3390\/s17040875"},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"8839","DOI":"10.1021\/acsnano.8b02162","article-title":"Multilayer Graphene Epidermal Electronic Skin","volume":"12","author":"Qiao","year":"2018","journal-title":"ACS Nano"},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"179","DOI":"10.3389\/fbioe.2018.00179","article-title":"Reusable Flexible Concentric Electrodes Coated With a Conductive Graphene Ink for Electrotactile Stimulation","volume":"6","author":"Sencadas","year":"2018","journal-title":"Front. Bioeng. Biotechnol."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"3259","DOI":"10.1109\/TIM.2011.2164279","article-title":"Surface Electromyographic Signals Using Dry Electrodes","volume":"60","author":"Laferriere","year":"2011","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1016\/j.sna.2011.12.017","article-title":"A 3D printed dry electrode for ECG\/EEG recording","volume":"174","author":"Salvo","year":"2012","journal-title":"Sens. Actuators A"},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1016\/j.sna.2013.11.020","article-title":"Liquid silicone rubber (LSR)-based dry bioelectrodes: The effect of surface micropillar structuring and silver coating on contact impedance","volume":"206","author":"Kaitainen","year":"2014","journal-title":"Sens. Actuators A"},{"key":"ref_71","doi-asserted-by":"crossref","unstructured":"Krachunov, S., and Casson, A.J. (2016). 3D Printed Dry EEG Electrodes. Sensors, 16.","DOI":"10.3390\/s16101635"},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"1200","DOI":"10.1109\/TBME.2010.2102353","article-title":"Novel Dry Polymer Foam Electrodes for Long-Term EEG Measurement","volume":"58","author":"Lin","year":"2011","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"3920","DOI":"10.1073\/pnas.1424875112","article-title":"Soft, curved electrode systems capable of integration on the auricle as a persistent brain-computer interface","volume":"112","author":"Norton","year":"2015","journal-title":"Proc. Natl. Acad. Sci. USA"},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"838","DOI":"10.1126\/science.1206157","article-title":"Epidermal Electronics","volume":"333","author":"Kim","year":"2011","journal-title":"Science"},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1126\/sciadv.1601185","article-title":"Epidermal mechano-acoustic sensing electronics for cardiovascular diagnostics and human-machine interfaces","volume":"2","author":"Liu","year":"2016","journal-title":"Sci. Adv."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"540","DOI":"10.1109\/TBME.2015.2465936","article-title":"Fully Textile, PEDOT: PSS Based Electrodes for Wearable ECG Monitoring Systems","volume":"63","author":"Pani","year":"2016","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"37524","DOI":"10.1021\/acsami.7b09954","article-title":"Screen-Printed PEDOT: PSS Electrodes on Commercial Finished Textiles for Electrocardiography","volume":"9","author":"Sinha","year":"2017","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1186\/s12938-018-0469-5","article-title":"Electrical performance of PEDOT: PSS-based textile electrodes for wearable ECG monitoring: A comparative study","volume":"17","author":"Castrillon","year":"2018","journal-title":"Biomed. Eng. Online"},{"key":"ref_79","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1002\/admt.201600251","article-title":"Fully Printed Electrodes on Stretchable Textiles for Long-Term Electrophysiology","volume":"2","author":"Bihar","year":"2017","journal-title":"Adv. Mater. Technol."},{"key":"ref_80","doi-asserted-by":"crossref","first-page":"14041","DOI":"10.1038\/s41598-018-32304-6","article-title":"Light-cured polymer electrodes for non-invasive EEG recordings","volume":"8","author":"Kalinka","year":"2018","journal-title":"Sci. Rep."},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1002\/adhm.201601167","article-title":"Inkjet-Printed PEDOT: PSS Electrodes on Paper for Electrocardiography","volume":"6","author":"Bihar","year":"2017","journal-title":"Adv. Healthc. Mater."},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"e1801033","DOI":"10.1002\/adhm.201801033","article-title":"Two-Layered and Stretchable e-Textile Patches for Wearable Healthcare Electronics","volume":"7","author":"La","year":"2018","journal-title":"Adv. Healthc. Mater."},{"key":"ref_83","doi-asserted-by":"crossref","first-page":"33","DOI":"10.3389\/fnins.2017.00033","article-title":"sEMG Sensor Using Polypyrrole-Coated Nonwoven Fabric Sheet for Practical Control of Prosthetic Hand","volume":"11","author":"Jiang","year":"2017","journal-title":"Front. Neurosci."},{"key":"ref_84","doi-asserted-by":"crossref","first-page":"1397","DOI":"10.1007\/s10439-018-2042-6","article-title":"Feasibility Testing of Hydrophobic Carbon Electrodes for Acquisition of Underwater Surface Electromyography Data","volume":"46","author":"Noh","year":"2018","journal-title":"Ann. Biomed. Eng."},{"key":"ref_85","doi-asserted-by":"crossref","first-page":"8578","DOI":"10.1109\/JSEN.2018.2865623","article-title":"Knit Band Sensor for Myoelectric Control of Surface EMG-Based Prosthetic Hand","volume":"18","author":"Lee","year":"2018","journal-title":"IEEE Sens. J."},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"1370","DOI":"10.1109\/TNSRE.2019.2916397","article-title":"Validation of polymer-based screen-printed textile electrodes for surface EMG detection","volume":"27","author":"Pani","year":"2019","journal-title":"IEEE Trans. Neural. Syst. Rehabil. Eng."},{"key":"ref_87","doi-asserted-by":"crossref","first-page":"423","DOI":"10.1109\/TBME.2015.2462312","article-title":"Fabric-Based Wearable Dry Electrodes for Body Surface Biopotential Recording","volume":"63","author":"Yokus","year":"2016","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_88","doi-asserted-by":"crossref","unstructured":"Ankhili, A., Tao, X., Cochrane, C., Coulon, D., and Koncar, V. (2018). Washable and Reliable Textile Electrodes Embedded into Underwear Fabric for Electrocardiography (ECG) Monitoring. Materials, 11.","DOI":"10.3390\/ma11020256"},{"key":"ref_89","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1109\/TBME.1969.4502613","article-title":"Capacitive electrocardiographic and bioelectric electrodes","volume":"1","author":"Lopez","year":"1969","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_90","doi-asserted-by":"crossref","first-page":"526","DOI":"10.1109\/JETCAS.2011.2179419","article-title":"Ultra-High Input Impedance, Low Noise Integrated Amplifier for Noncontact Biopotential Sensing","volume":"1","author":"Chi","year":"2011","journal-title":"IEEE J. Emerging Sel. Top. Circuits Syst."},{"key":"ref_91","doi-asserted-by":"crossref","first-page":"617","DOI":"10.1109\/TBCAS.2014.2359053","article-title":"Noncontact ECG Recording System With Real Time Capacitance Measurement for Motion Artifact Reduction","volume":"8","author":"Torfs","year":"2014","journal-title":"IEEE Trans. Biomed. Circuits Syst."},{"key":"ref_92","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1016\/j.measurement.2017.09.024","article-title":"Textile electrodes in capacitive signal sensing applications","volume":"114","author":"Babusiak","year":"2018","journal-title":"Measurement"},{"key":"ref_93","doi-asserted-by":"crossref","first-page":"956","DOI":"10.1109\/TBME.2006.872823","article-title":"ECG measurement on a chair without conductive contact","volume":"53","author":"Lim","year":"2006","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_94","doi-asserted-by":"crossref","first-page":"250","DOI":"10.1109\/TBCAS.2008.915633","article-title":"Mobile noncontact monitoring of heart and lung activity","volume":"1","author":"Steffen","year":"2007","journal-title":"IEEE Trans. Biomed. Circuits Syst."},{"key":"ref_95","first-page":"2","article-title":"e-bra With Nanosensors for Real Time Cardiac Health Monitoring and Smartphone Communication","volume":"2","author":"Varadan","year":"2011","journal-title":"J. Nanotechnol. Eng."},{"key":"ref_96","first-page":"83440E","article-title":"Smart healthcare textile sensor system for unhindered-pervasive health monitoring","volume":"8344","author":"Varadan","year":"2012","journal-title":"Nanosens. Biosens. Info-Tech Sens. Syst."},{"key":"ref_97","doi-asserted-by":"crossref","first-page":"3361","DOI":"10.1109\/TIM.2015.2459531","article-title":"Novel Noncontact Dry Electrode With Adaptive Mechanical Design for Measuring EEG in a Hairy Site","volume":"64","author":"Chen","year":"2015","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_98","doi-asserted-by":"crossref","first-page":"3422","DOI":"10.1109\/TBME.2012.2215032","article-title":"Conductive Polymer Foam Surface Improves the Performance of a Capacitive EEG Electrode","volume":"59","author":"Baek","year":"2012","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_99","doi-asserted-by":"crossref","first-page":"138","DOI":"10.1109\/TBME.2015.2478406","article-title":"Self-Adhesive and Capacitive Carbon Nanotube-Based Electrode to Record Electroencephalograph Signals From the Hairy Scalp","volume":"63","author":"Lee","year":"2016","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_100","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1007\/s13206-017-1304-y","article-title":"Flexible and Implantable Capacitive Microelectrode for Bio-potential Acquisition","volume":"11","author":"Lee","year":"2017","journal-title":"BioChip J."},{"key":"ref_101","doi-asserted-by":"crossref","unstructured":"Huang, Y.A., Dong, W.T., Zhu, C., and Xiao, L. (2018). Electromechanical Design of Self-Similar Inspired Surface Electrodes for Human-Machine Interaction. Complexity.","DOI":"10.1155\/2018\/3016343"},{"key":"ref_102","doi-asserted-by":"crossref","first-page":"1807614","DOI":"10.1002\/adfm.201807614","article-title":"Highly Permeable Skin Patch with Conductive Hierarchical Architectures Inspired by Amphibians and Octopi for Omnidirectionally Enhanced Wet Adhesion","volume":"29","author":"Kim","year":"2019","journal-title":"Adv. Funct. Mater."},{"key":"ref_103","doi-asserted-by":"crossref","first-page":"1146","DOI":"10.1093\/icb\/42.6.1146","article-title":"The structure and adhesive mechanism of octopus suckers","volume":"42","author":"Kier","year":"2002","journal-title":"Integr. Comp. Biol."},{"key":"ref_104","doi-asserted-by":"crossref","first-page":"20140050","DOI":"10.1098\/rsfs.2014.0050","article-title":"Unveiling the morphology of the acetabulum in octopus suckers and its role in attachment","volume":"5","author":"Tramacere","year":"2015","journal-title":"Interface Focus."},{"key":"ref_105","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1016\/j.synthmet.2008.11.005","article-title":"Mechanical characterization of PEDOT:PSS thin films","volume":"159","author":"Lang","year":"2009","journal-title":"Synth. Met."},{"key":"ref_106","doi-asserted-by":"crossref","unstructured":"Sun, Y., Yu, X., and Berilla, J. (2013, January 5\u20137). An innovative non-invasive ECG sensor and comparison study with clinic system. Proceedings of the 2013 39th Annual Northeast Bioengineering Conference, Syracuse, NY, USA.","DOI":"10.1109\/NEBEC.2013.50"},{"key":"ref_107","doi-asserted-by":"crossref","first-page":"3112","DOI":"10.1109\/TBME.2011.2163715","article-title":"ECG on the road: Robust and unobtrusive estimation of heart rate","volume":"58","author":"Wartzek","year":"2011","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_108","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.jelectrocard.2019.08.015","article-title":"Electrode placement in electrocardiography smart garments: A review","volume":"57","author":"Soroudi","year":"2019","journal-title":"J. Electrocardiol."},{"key":"ref_109","doi-asserted-by":"crossref","unstructured":"Pino, E.J., Arias, Y., and Aqueveque, P. (2018, January 18\u201321). Wearable EMG Shirt for Upper Limb Training. Proceedings of the 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Honolulu, HI, USA.","DOI":"10.1109\/EMBC.2018.8513107"},{"key":"ref_110","doi-asserted-by":"crossref","first-page":"6839","DOI":"10.1002\/adma.201301921","article-title":"Materials and Optimized Designs for Human-Machine Interfaces via Epidermal Electronics","volume":"25","author":"Jeong","year":"2013","journal-title":"Adv. Mater."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/13\/3651\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:44:40Z","timestamp":1760175880000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/13\/3651"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,6,29]]},"references-count":110,"journal-issue":{"issue":"13","published-online":{"date-parts":[[2020,7]]}},"alternative-id":["s20133651"],"URL":"https:\/\/doi.org\/10.3390\/s20133651","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,6,29]]}}}