Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior

Hydrogel-based wearable electrochemical biosensors (HWEBs) are emerging biomedical devices that have recently received immense interest. The exceptional properties of HWEBs include excellent biocompatibility with hydrophilic nature, high porosity, tailorable permeability, the capability of reliable...

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Main Authors: Mohsen Saeidi, Hossein Chenani, Mina Orouji, MahsaSadat Adel Rastkhiz, Nafiseh Bolghanabadi, Shaghayegh Vakili, Zahra Mohamadnia, Amir Hatamie, Abdolreza (Arash) Simchi
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Biosensors
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Online Access:https://www.mdpi.com/2079-6374/13/8/823
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author Mohsen Saeidi
Hossein Chenani
Mina Orouji
MahsaSadat Adel Rastkhiz
Nafiseh Bolghanabadi
Shaghayegh Vakili
Zahra Mohamadnia
Amir Hatamie
Abdolreza (Arash) Simchi
author_facet Mohsen Saeidi
Hossein Chenani
Mina Orouji
MahsaSadat Adel Rastkhiz
Nafiseh Bolghanabadi
Shaghayegh Vakili
Zahra Mohamadnia
Amir Hatamie
Abdolreza (Arash) Simchi
author_sort Mohsen Saeidi
collection DOAJ
description Hydrogel-based wearable electrochemical biosensors (HWEBs) are emerging biomedical devices that have recently received immense interest. The exceptional properties of HWEBs include excellent biocompatibility with hydrophilic nature, high porosity, tailorable permeability, the capability of reliable and accurate detection of disease biomarkers, suitable device–human interface, facile adjustability, and stimuli responsive to the nanofiller materials. Although the biomimetic three-dimensional hydrogels can immobilize bioreceptors, such as enzymes and aptamers, without any loss in their activities. However, most HWEBs suffer from low mechanical strength and electrical conductivity. Many studies have been performed on emerging electroactive nanofillers, including biomacromolecules, carbon-based materials, and inorganic and organic nanomaterials, to tackle these issues. Non-conductive hydrogels and even conductive hydrogels may be modified by nanofillers, as well as redox species. All these modifications have led to the design and development of efficient nanocomposites as electrochemical biosensors. In this review, both conductive-based and non-conductive-based hydrogels derived from natural and synthetic polymers are systematically reviewed. The main synthesis methods and characterization techniques are addressed. The mechanical properties and electrochemical behavior of HWEBs are discussed in detail. Finally, the prospects and potential applications of HWEBs in biosensing, healthcare monitoring, and clinical diagnostics are highlighted.
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spelling doaj.art-3d246573c08e4b34ad1676a12116d9b82023-11-19T00:25:47ZengMDPI AGBiosensors2079-63742023-08-0113882310.3390/bios13080823Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical BehaviorMohsen Saeidi0Hossein Chenani1Mina Orouji2MahsaSadat Adel Rastkhiz3Nafiseh Bolghanabadi4Shaghayegh Vakili5Zahra Mohamadnia6Amir Hatamie7Abdolreza (Arash) Simchi8Department of Materials Science and Engineering, Sharif University of Technology, Tehran 14588-89694, IranDepartment of Materials Science and Engineering, Sharif University of Technology, Tehran 14588-89694, IranDepartment of Materials Science and Engineering, Sharif University of Technology, Tehran 14588-89694, IranDepartment of Materials Science and Engineering, Sharif University of Technology, Tehran 14588-89694, IranDepartment of Materials Science and Engineering, Sharif University of Technology, Tehran 14588-89694, IranPolymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan 45371-38791, IranDepartment of Chemistry, Institute for Advanced Studies in Basic Science (IASBS), Gava Zang, Zanjan 45137-66731, IranDepartment of Chemistry, Institute for Advanced Studies in Basic Science (IASBS), Gava Zang, Zanjan 45137-66731, IranDepartment of Materials Science and Engineering, Sharif University of Technology, Tehran 14588-89694, IranHydrogel-based wearable electrochemical biosensors (HWEBs) are emerging biomedical devices that have recently received immense interest. The exceptional properties of HWEBs include excellent biocompatibility with hydrophilic nature, high porosity, tailorable permeability, the capability of reliable and accurate detection of disease biomarkers, suitable device–human interface, facile adjustability, and stimuli responsive to the nanofiller materials. Although the biomimetic three-dimensional hydrogels can immobilize bioreceptors, such as enzymes and aptamers, without any loss in their activities. However, most HWEBs suffer from low mechanical strength and electrical conductivity. Many studies have been performed on emerging electroactive nanofillers, including biomacromolecules, carbon-based materials, and inorganic and organic nanomaterials, to tackle these issues. Non-conductive hydrogels and even conductive hydrogels may be modified by nanofillers, as well as redox species. All these modifications have led to the design and development of efficient nanocomposites as electrochemical biosensors. In this review, both conductive-based and non-conductive-based hydrogels derived from natural and synthetic polymers are systematically reviewed. The main synthesis methods and characterization techniques are addressed. The mechanical properties and electrochemical behavior of HWEBs are discussed in detail. Finally, the prospects and potential applications of HWEBs in biosensing, healthcare monitoring, and clinical diagnostics are highlighted.https://www.mdpi.com/2079-6374/13/8/823flexible biosensorselectroactive hydrogelbiocompatible polymerelectrochemistrymechanical behavior
spellingShingle Mohsen Saeidi
Hossein Chenani
Mina Orouji
MahsaSadat Adel Rastkhiz
Nafiseh Bolghanabadi
Shaghayegh Vakili
Zahra Mohamadnia
Amir Hatamie
Abdolreza (Arash) Simchi
Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior
Biosensors
flexible biosensors
electroactive hydrogel
biocompatible polymer
electrochemistry
mechanical behavior
title Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior
title_full Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior
title_fullStr Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior
title_full_unstemmed Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior
title_short Electrochemical Wearable Biosensors and Bioelectronic Devices Based on Hydrogels: Mechanical Properties and Electrochemical Behavior
title_sort electrochemical wearable biosensors and bioelectronic devices based on hydrogels mechanical properties and electrochemical behavior
topic flexible biosensors
electroactive hydrogel
biocompatible polymer
electrochemistry
mechanical behavior
url https://www.mdpi.com/2079-6374/13/8/823
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