Fig. 3: Water retention of hydrogels with ALIBC. | Nature Communications

Fig. 3: Water retention of hydrogels with ALIBC.

From: Bioinspired adaptive lipid-integrated bilayer coating for enhancing dynamic water retention in hydrogel-based flexible sensors

Fig. 3

a Images of hydrogels with different coatings during the dehydration experiments at 25 °C and 50% humidity. Scale bar = 5 mm. b Normalized weight ratios (normalized remaining mass) of hydrogels with different coatings within 48 h. c Effect of lipid dynamics on the water retention performance of hydrogels within 6 h. Insets correspond to images of hydrogels with coatings of different dynamics after 6 h. Scale bar = 5 mm. d Strain signals and images of PAAm (Control) and PAAm-UA/HSPC hydrogels under cyclic stretching-relaxation. PAAm hydrogels fractured after 3 h of cyclic stretching-relaxation while PAAm-UA/HSPC hydrogels maintained their integrity after 48 h. Scale bar = 5 mm. e Normalized weight ratios of PAAm (Control), PAAm-UA hydrogels and hydrogels containing ALIBC with and without internal lipid aggregates under cyclic stretching-relaxation (strain ~300%, frequency ~0.2 Hz) for 48 h. Values in (b and e) represent the mean and standard deviation (n = 3).

Back to article page