Fig. 3From: Alpha-beta transition induced by C18-conjugation of polyalanine and its implication in aqueous solution behavior of poly(ethylene glycol)-polyalanine block copolymersIce recrystallization inhibition effect of PEG-PAO and PEG-PAS aqueous solutions (1.0 wt.%). The microscopy images of the ice crystals (a) and mean largest grain size (b) were compared. The scale bar is 200 μm. ** on the bar graph indicates p < 0.01 in comparison with PBSBack to article page