Macromolecules

Photodegradable hydrogels to generate positive and negative features over multiple length scales

DY Wong, DR Griffin, J Reed, AM Kasko

Index: Wong, Darice Y.; Griffin, Donald R.; Reed, Jason; Kasko, Andrea M. Macromolecules, 2010 , vol. 43, # 6 p. 2824 - 2831

Full Text: HTML

Citation Number: 70

Abstract

Here we present a photodegradable hydrogel as a biocompatible, nonfouling photoresist capable of presenting positive and negative features through single-photon and two-photon degradation. An ortho-nitrobenzylether (o-NBE) moiety is used as a polymerizable cap for poly (ethylene glycol) chains to create a photodegradable macromer. Positive and negative features can be patterned into/onto a hydrogel over a broad range of length scales (∼ 10− ...