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Development of ultrasensitive biomimetic auditory hair cells based on piezoresistive hydrogel nanocomposites
, Article ACS Applied Materials and Interfaces ; Volume 13, Issue 37 , 2021 , Pages 44904-44915 ; 19448244 (ISSN) ; Moradi, H ; Pastras, C. J ; Abolpour Moshizi, S ; Wu, S ; Asadnia, M ; Sharif University of Technology
American Chemical Society
2021
Abstract
With an ageing population, hearing disorders are predicted to rise considerably in the following decades. Thus, developing a new class of artificial auditory system has been highlighted as one of the most exciting research topics for biomedical applications. Herein, a design of a biocompatible piezoresistive-based artificial hair cell sensor is presented consisting of a highly flexible and conductive polyvinyl alcohol (PVA) nanocomposite with vertical graphene nanosheets (VGNs). The bilayer hydrogel sensor demonstrates excellent performance to mimic biological hair cells, responding to acoustic stimuli in the audible range between 60 Hz to 20 kHz. The sensor output demonstrates stable...
Development of ultrasensitive biomimetic auditory hair cells based on piezoresistive hydrogel nanocomposites
, Article ACS Applied Materials and Interfaces ; Volume 13, Issue 37 , 2021 , Pages 44904-44915 ; 19448244 (ISSN) ; Moradi, H ; Pastras, C. J ; Abolpour Moshizi, S ; Wu, S ; Asadnia, M ; Sharif University of Technology
American Chemical Society
2021
Abstract
With an ageing population, hearing disorders are predicted to rise considerably in the following decades. Thus, developing a new class of artificial auditory system has been highlighted as one of the most exciting research topics for biomedical applications. Herein, a design of a biocompatible piezoresistive-based artificial hair cell sensor is presented consisting of a highly flexible and conductive polyvinyl alcohol (PVA) nanocomposite with vertical graphene nanosheets (VGNs). The bilayer hydrogel sensor demonstrates excellent performance to mimic biological hair cells, responding to acoustic stimuli in the audible range between 60 Hz to 20 kHz. The sensor output demonstrates stable...