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Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture
Published on: July 10, 2013
3D Printing of Transparent and Conductive Heterogeneous Hydrogel-Elastomer Systems
Kevin Tian1, Jinhye Bae1, Shannon E Bakarich2,3
1School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
Abstract:
A hydrogel-dielectric-elastomer system, polyacrylamide and poly(dimethylsiloxane) (PDMS), is adapted for extrusion printing for integrated device fabrication. A lithium-chloride-containing hydrogel printing ink is developed and printed onto treated PDMS with no visible signs of delamination and geometrically scaling resistance under moderate uniaxial tension and fatigue. A variety of designs are demonstrated, including a resistive strain gauge and an ionic cable.

