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Electroconductive hydrogels: Synthesis, characterization and biomedical applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
8557 598 2010 16 PDF Available
Title
Electroconductive hydrogels: Synthesis, characterization and biomedical applications
Abstract

Electroconductive hydrogels (ECHs) are composite biomaterials that bring together the redox switching and electrical properties of inherently conductive electroactive polymers (CEPs) with the facile small molecule transport, high hydration levels and biocompatibility of cross-linked hydrogels. General methods for the synthesis of electroconductive hydrogels as polymer blends and as polymer co-networks via chemical oxidative, electrochemical and/or a combination of chemical oxidation followed by electrochemical polymerization techniques are reviewed. Specific examples are introduced to illustrate the preparation of electroconductive hydrogels that were synthesized from poly(HEMA)-based hydrogels with polyaniline and from poly(HEMA)-based hydrogels with polypyrrole. The key applications of electroconductive hydrogels; as biorecognition membranes for implantable biosensors, as electro-stimulated drug release devices for programmed delivery, and as the low interfacial impedance layers on neuronal prostheses are highlighted. These applications provide great new horizons for these stimuli responsive, biomimetic polymeric materials.

Keywords
Hydrogels; Polypyrrole; Polyaniline; Blends; Co-networks; Electrically conductive hydrogelECH, electroconductive hydrogels; CEP, conductive electroactive polymers; IME, interdigitated microsensor electrode; MDEA, microdisc electrode array; QCM, quartz cry
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 31, Issue 10, April 2010, Pages 2701–2716
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
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