2017
DOI: 10.1002/aelm.201700495
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Chemiresistive and Chemicapacitive Devices Formed via Morphology Control of Electroconductive Bio‐nanocomposites

Abstract: Chemiresistive and chemicapacitive circuit elements are fashioned from polymer thin films that are bio‐nanocomposites of polyaniline‐chloride (PAn‐Cl) nanofibers within a chitosan (CHI) matrix deposited on microfabricated electrodes (IAME‐co‐IME; 2 µm lines and 1 µm spacing). UV–vis spectroscopy of 0–100 wt% PAn‐Cl/CHI confirms no electronic coupling between PAn and CHI. When aqueous dispersions of the bio‐nanocomposite are slow dried or cast, frozen, and lyophilized, they produce dense (chemiresistive) or hig… Show more

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Cited by 11 publications
(4 citation statements)
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“…29 As such, utilizing soft biopolymers also allows for potential biocompatibility and engineered multifunctionality. 30 Compliant materials can be better suited for biological systems because the interface between biological tissue and electronic devices can be improved while avoiding detrimental effects. 31 These attractive features can be offered by conjugated polymers with their mechanical properties well-matched to the softness of biological systems.…”
Section: Introductionmentioning
confidence: 99%
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“…29 As such, utilizing soft biopolymers also allows for potential biocompatibility and engineered multifunctionality. 30 Compliant materials can be better suited for biological systems because the interface between biological tissue and electronic devices can be improved while avoiding detrimental effects. 31 These attractive features can be offered by conjugated polymers with their mechanical properties well-matched to the softness of biological systems.…”
Section: Introductionmentioning
confidence: 99%
“…Being soft solids, organic semiconducting polymers possess low values of Young’s modulus, 20 kPa to 3 GPa, which is comparable to the parameters of the living tissue (∼10 kPa) in contrast to the values of inorganic semiconductors (∼100 GPa). Notably, inflammation reduction can be achieved through strain alleviation at the tissue/implant interface as a result of organic semiconductor softness . As such, utilizing soft biopolymers also allows for potential biocompatibility and engineered multifunctionality . Compliant materials can be better suited for biological systems because the interface between biological tissue and electronic devices can be improved while avoiding detrimental effects …”
Section: Introductionmentioning
confidence: 99%
“…19 PAni exhibits high conductivity in its partially oxidized state and good chemical reversibility. 20 PAni exists in several forms (Scheme S1), depending on the potential applied, and assumes distinctive properties, depending on the oxidation or protonation degree. It has been shown, that PAni nanostructures (e.g., fibers) assemble into highly porous, hydrophilic, and high surface area electrodes.…”
Section: ■ Introductionmentioning
confidence: 99%
“…Among the ECPs, polyaniline (PAni) is one of the most extensively studied due to its low production cost, simple synthesis, mechanical and environmental stability, and adjustable conductivity . PAni exhibits high conductivity in its partially oxidized state and good chemical reversibility . PAni exists in several forms (Scheme S1), depending on the potential applied, and assumes distinctive properties, depending on the oxidation or protonation degree.…”
Section: Introductionmentioning
confidence: 99%