Ion Electrodiffusion Governs Silk Electrogelation |
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Authors: | Nikola Kojic Matthew J Panzer Gary G Leisk Waseem K Raja Milos Kojic David L Kaplan |
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Affiliation: | Department of Biomedical Engineering, Tufts University, Medford MA, 02155. |
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Abstract: | Silk electrogelation involves the transition of an aqueous silk fibroin solution to a gel state (E-gel) in the presence of an electric current. The process is based on local pH changes as a result of water electrolysis - generating H(+) and OH(-) ions at the (+) and (-) electrodes, respectively. Silk fibroin has a pI=4.2 and when local pH
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