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Protein-Based Flexible Conductive Aerogels for Piezoresistive Pressure Sensors.

ABSTRACT: Gelatin is an excellent gelling agent and is widely employed for hydrogel formation. Because of the poor mechanical properties of gelatin when dry, gelatin-aerogels are comparatively rare. Herein we demonstrate that protein nanofibrils can be employed to improve the mechanical properties of gelatin aerogels, and the materials can moreover be functionalized with a an electrically conductive polyelectrolyte resulting in formation of an elastic electrically conductive aerogel that can be employed as a piezoresistive pressure sensor. The aerogel sensor shows a good linear relationship in a wide pressure range (1.8-300 kPa) with a sensitivity of 1.8 kPa^-1. This work presents a convenient way to produce electrically conductive elastic aerogels from low-cost protein precursors.

SUBMITTER: Yuan Y

PROVIDER: S-EPMC9297298 | biostudies-literature |

REPOSITORIES: biostudies-literature

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