Engineering and Technology

Electro-assisted printing of soft hydrogels via controlled electrochemical reactions

A. C. D. Silva, J. Wang, et al.

Discover the groundbreaking electro-assisted printing method for creating patterned soft hydrogels, explored by Aruá Clayton Da Silva, Junzhi Wang, and Ivan Rusev Minev. This innovative approach enables precise control of hydrogel growth rates and allows for the creation of hybrid systems with potential applications in bioelectronics.

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Abstract

This research explores a novel electro-assisted printing method for creating patterned soft hydrogels using sequential electrochemical-chemical-chemical (ECC) reactions. Potentiostatic control over the process allows for precise selection of gelation reactions and control of hydrogel growth rate, demonstrated in chitosan and alginate systems via precipitation, covalent, and ionic gelation. The method also enables the creation of hybrid systems, such as PEDOT/alginate conductive hydrogels. A customized 3D printer setup facilitates the patterning of these hydrogels on various substrates, including gold and flexible ITO foils, showcasing potential applications in bioelectronics.

Publisher

Nature Communications

Published On

Mar 15, 2022

Authors

Aruá Clayton Da Silva, Junzhi Wang, Ivan Rusev Minev

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