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(A) Chemical structures of the precursor and the corresponding hydrogelator used to form peptide based nanofibers for hydrogelation. (B) Radioactivity remaining (% of activity at day 0) at the injection sites of hydrogel containing 0.3, 0.5, and 1 wt% precursor at different time points. (C) Process of peptide-based nanofibrous hydrogels for enhancing immune responses of HIV DNA vaccines. Adapted with permission from ref. 77. Copyright 2014, American Chemical Society.
