Materials
Type A gelatin from porcine skin (Gel), with reported gel
strength of 175 g Bloom was obtained from SigmaeAldrich.
()-Epigallocatechin gallate (EGCG), 2,20-azino-bis(3-ethylben
zothiazoline-6-sulfonic acid) diammonium salt (ABTS), buffer solutions
of pH 7.4 (phosphate buffered saline system, PBS) and pH 6.1
(2-(N-morpholino)ethanesulfonic acid hemisodium salt, MES),
potassium persulfate (K2O8S2) and potassium bromide FTIR grade
(KBr) were also obtained from SigmaeAldrich. 96% (v/v) acetic acid
(Scharlab) and 96% (v/v) ethanol (Panreac) were used as received.