Fig. 2
From: Triggerable tough hydrogels for gastric resident dosage forms
Physical characterization of TTHs. a Photographs of a TTH strip stretched to 14 times its initial length and subsequently coiled and twisted, and a TTH cuboid-resisted slicing with a blade. Scale bar: 1 cm. b Compressive stress-strain curves of the TTH, alginate, and polyacrylamide gels with same amounts of alginate or polyacrylamide to the TTH. c Tensile stress-strain curves of the TTH, alginate, and polyacrylamide gels stretched to breaking. d Plot of volume variation (V t/V 0) of the TTH vs. the incubation time at 37 °C. e Plot of the maximum compressive stress of the TTH as a function of the incubation time in SGF at 37 °C. f Plot of diameter variation of the cylindrical dehydrated TTH vs. the incubation time at 37 °C. Error bars show standard deviation (n = 3)
