Outside-In Strategy for Peptide-Based Methacrylate and Methacrylamide Zwitterionic Cross-Linkers

Author:

Waynant Kristopher V.,Chakraborty Moubani

Abstract

AbstractPolyampholyte hydrogels have shown promise as functional biomaterial platforms with resistance to nonspecific protein adsorption (nonbiofouling). Yet there are few zwitterionic cross-linkers available to complement these materials and to provide an extended charge density throughout the 3D network. The recent development of peptide-based zwitterionic cross-linkers has shown merit. Indeed, the use of functionalizable amino acids permits the synthesis of a series of peptide-based zwitterionic methacrylate and methacrylamide cross-linkers. Methacrylate additions prior to peptide coupling provide an outside-in strategy when using natural l-serine or l-lysine as substrates to produce a series of methacrylate and methacrylamide combinations, expanding the library of peptide-based cross-linkers. Here, we describe the preparation of such dipeptide combinations as Ser-Lys, Lys-Ser, and Lys-Lys in zwitterionic bis(methacrylate/methacrylamide) cross-linkers. To highlight the utility of this method and its potential to increase the distance between zwitterionic components, syntheses of the tripeptide Lys-Gly-Lys dimethacrylamide and Ser-Gly-Ser dimethacrylate are reported.

Funder

University of Idaho

Publisher

Georg Thieme Verlag KG

Subject

Organic Chemistry

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