Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43329
Title: On-tip photo-modulated molecular printing
Authors: Xie, Z
Zhou, Y
Hedrick, JL
Chen, PC
He, S
Shahjamali, MM
Wang, S
Zheng, Z 
Mirkin, CA
Keywords: Molecular printing
Photochemistry
Photocontrol
Polymer pen lithography
Scanning probe lithography
Issue Date: 2015
Publisher: Wiley-VCH
Source: Angewandte chemie international edition, 2015, v. 54, no. 44, p. 12894-12899 How to cite?
Journal: Angewandte chemie international edition 
Abstract: The concept of using cantilever-free scanning probe arrays as structures that can modulate nanoscale ink flow and composition with light is introduced and evaluated. By utilizing polymer pen arrays with an opaque gold layer surrounding the base of the transparent polymer pyramids, we show that inks with photopolymerizable or isomerizable constituents can be used in conjunction with light channelled through the pyramids to control ink viscosity or composition in a dynamic manner. This on-tip photo-modulated molecular printing provides novel chemically and mechanically controlled approaches to regulating ink transport and composition in real time and could be useful not only for rapidly adjusting feature size but also for studying processes including photoreactions and mass transport at the nanoscale, self-assembly, and cell-material interactions.
URI: http://hdl.handle.net/10397/43329
ISSN: 1433-7851 (print)
1521-3773 (online)
DOI: 10.1002/anie.201505150
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