Functional Hydrogel Density Patterns Fabricated by Dip‐Pen Nanolithography and Photografting

Abstract

Fabrication of submicrometer-sized PEG hydrogel patterns by self-initiated photo­grafting and photopolymerization on molecular templates, made by dip-pen nanolithography on gold, is described. Well-defined hydrogel structures (line and dot arrays) with features protruding 10–15 nm above a homogeneous hydrogel background are obtained. They can be carboxylated and employed for obtaining reusable protein density nanoarrays. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.