EAP hydrogels for pulse-actuated cell system (PACS) architectures

R. Erik Plata; Hallena R. Rogers; Mark Banister; Sonia Vohnout; Dominic V. McGrath

doi:10.1117/12.716107

5 April 2007 EAP hydrogels for pulse-actuated cell system (PACS) architectures

R. Erik Plata, Hallena R. Rogers, Mark Banister, Sonia Vohnout, Dominic V. McGrath

Proceedings Volume 6524, Electroactive Polymer Actuators and Devices (EAPAD) 2007; 65241T (2007) https://doi.org/10.1117/12.716107
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

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.

Citation Download Citation

R. Erik Plata, Hallena R. Rogers, Mark Banister, Sonia Vohnout, and 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); https://doi.org/10.1117/12.716107

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