Silk protein-based sweat-wet-resistant flexible pressure sensor and method and application thereof
A pressure sensor and silk protein technology, applied in the field of materials, can solve problems such as allergies, low biocompatibility, and device failure, and achieve high anti-sweat performance, high biocompatibility, and improved accuracy.
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[0051] Example 1: Flexible pressure sensor based on microstructured electrode layers and ionic dielectric layers
[0052] (1) Preparation of ionic dielectric layer: a formic acid solution of fibroin with a concentration of 15wt% was prepared, and a silk fibroin fiber felt was obtained by an electrospinning process. The spinning voltage was 12kV, the feeding rate was 0.02ml / h, and the collection distance was is 15cm;
[0053] Preparation of choline chloride: glycerol molar ratio of 1:1 deep eutectic solvent for use, the silk fibroin fiber felt is treated with ethanol solution, soaked in the deep eutectic solvent, and dried to obtain silk fibroin / ionic liquid fiber felt as a pressure sensor ionic dielectric layer.
[0054] (2) Preparation of microstructured electrode layer: add 20wt% glycerin of silk protein to 15wt% fibroin in formic acid solution, then scrape it on a 600-mesh sandpaper substrate, and dry to obtain fibroin with a microprotrusion structure membrane; and then s...
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