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(a) Illustration of preparation process of quaternized chitosan. (b) Illustration of preparation process of rGO-PDA. (c) Illustration of preparation process of PNIPAM-ECH with quaternized chitosan and rGO-PDA served as conductive components. Copyright from Ref. [89] ACS publications. (d) Illustration of preparation process with PEDOT:PSS and clay served as conductive components. Copyright from Ref. [73] Royal Society of Chemistry.
