5 April 2007 EAP hydrogels for pulse-actuated cell system (PACS) architectures
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Abstract
Electroactuated polymer (EAP) hydrogels based on JEFFAMINE® T-403 and ethylene glycol glycidyl ether (EGDGE) are used in an infusion pump based on the proprietary Pulse Actuated Cell System (PACS) architecture in development at Medipacs LLC. We report here significant progress in optimizing the formulation of the EAP hydrogels to dramatically increase hydrolytic stability and reproducibility of actuation response. By adjusting the mole fraction of reactive components of the formulation and substituting higher molecular weight monomers, we eliminated a large degree of the hydrolytic instability of the hydrogels, decreased the brittleness of the gel, and increased the equilibrium swelling ratio. The combination of these two modifications to the formulation resulted in hydrogels that exhibited reproducible swelling and deswelling in response to pH for a total period of 10-15 hours.
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R. Erik Plata, R. Erik Plata, Hallena R. Rogers, Hallena R. Rogers, Mark Banister, Mark Banister, Sonia Vohnout, Sonia Vohnout, Dominic V. McGrath, Dominic V. McGrath, } "EAP hydrogels for pulse-actuated cell system (PACS) architectures", Proc. SPIE 6524, Electroactive Polymer Actuators and Devices (EAPAD) 2007, 65241T (5 April 2007); doi: 10.1117/12.716107; https://doi.org/10.1117/12.716107
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