
Keywords: HCA, hydrocaffeic acid; CS, chitosan; TPP, sodium tripolyphosphate; FD4, fluorescein isothiocyanate-labeled dextran; TMC, trimethyl chitosan; TMC-Cys, trimethyl chitosan-cysteine; DOPA, 3,4-dihydroxy-l-phenylalanine; EDC, 1-ethyl-3-(3-dimethylaminopropyl)