fig1

Figure 1. The preparation methods of leather composites. (A) Schematic illustration for fabricating AgNW/leather nanocomposites by vacuum-assisted filtration^[41]. Reprinted with permission. Copyright 2022, Wiley-VCH; (Ba) Schematic diagram of the fabrication of leather/a-MWCNT/CA fabric by spraying and vacuum-assisted filtration; (Bb-f) Photographs of the color, bendability, cross-sectional characterization, and breathability of leather/a-MWCNT/CA fabric^[45]. Reprinted with permission. Copyright 2023, Wiley-VCH; (Ca) A schematic shows the sensor fabrication on the leather by laser direct writing and (Cb) another schematic shows the conversion of collagen fibers in the leather to carbon flakes by the LDW; (Cc and d) Schematic and photograph of a 3 × 3 sensor array^[49]. Reprinted with permission. Copyright 2020, Wiley-VCH. AgNW: Silver nanowire; a-MWCNT: acidified multiwalled carbon nanotubes; LDW: laser direct writing.