Fig. 3

TEM images of hydrogel formed by LMW-L1 and LMW-D1 at a molar ratio of (a) 1:0, (b) 10:1, (c) 5:1, (d) 2:1, (e) 1:1, (f) 1:2, (g) 1:5, (h) 1:10, and (i) 0:1. Scale bar is 100 nm. j Rheology results (n = 3) and k CD spectra of hydrogels. l The wavelength offset in UV–vis spectra. m The intensity of 328 nm in fluorescence spectra in dependence of LMW-L1’s percentage