Regulating the Swelling-Shrinkable Behavior of Hydrogels through Incorporation of Hydrophillic Monomers
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초록
내용
Soft electronics using conductive hydrogels are emerging technologies with applications ranging from healthcare monitoring to medical implants. However, the effectiveness of these hydrogels in biomedical applications is often constrained by their instability and excessive swelling under physiological conditions. Here, we report a PEDOT:PSS conductive hydrogel based on poly(N-isopropylacrylamide-co-acrylic acid) (P(NIPAAm-co-AAc)) matrix. By incorporating PNIPAM, we aimed to mitigate overswelling in phosphate-buffered saline (PBS) similar to in vivo conditions. The distribution of PEDOT:PSS in hydrogel is optimized while maintaining enhanced mechanical strength, electrical conductivity, and swelling resistance. The resulting hydrogel demonstrated improved stability and reduced swelling in PBS. This advancement provides a promising solution for developing more stable and functional hydrogel systems for tissue engineering and wearable bioelectronics.