ALT (A) Schematic overview of the (1) sample structure (hydrogel/microgel) that is tested through (2) various testing modalities (compres-sion/nanoindentation/micropipette aspiration) where (3) curve outputs are used to calculate the sample modulus. (B) Calculated moduli for each structure (hydrogel: gray, microgel: green), testing modality (triangle: uniaxial compression testing, square: nanoindentation, circle: micropipette aspiration), and macromer concentration (3 wt%, 4 wt%, 5 wt%; darker color = higher wt%). n = 3–5 independent samples per condition.

ALT Dr. Nikolas Di Caprio presenting thesis defense, CU Boulder

ALT Dr. Nikolas Di Caprio presenting thesis defense, CU Boulder

ALT 3D printing of hydrogel micropillar molds to fabricate human engineered heart tissue (EHTs)

ALT Suspension bath printing of dynamic granular hydrogels to produce shape-morphing multi-material structures. a)Schematic of dynamic granular hydrogel design using temperature-responsive microgels. Temperature-responsive microgels reduce in volume when heated, resulting in macroscopic and microporous structure changes in granular hydrogels. b) Schematic of suspension bath printing using responsive granular ink and non-responsive granular bath to fabricate multi-material objects with programmed actuation. Printed structures are expected to actuate depending on the printed pattern design and bath shape.