NDLI: Simultaneous topographic and chemical patterning via imprinting defined nano-reactors

Content Provider	Royal Society of Chemistry (RSC)
Author	He, X. Nan, H. Zhao, Z. Sun, M.
Copyright Year	2016
Abstract	Simultaneous topographic and chemical patterning has attracted extensive attention in energy harvesting, sensing, and tissue engineering applications. However, it is still challenging to find a universal topographic-chemical patterning method that applies to arbitrary reactions, and offers tunability on the scale of chemical reactions. Herein, we develop a novel strategy to introduce spatially defined ultra-small reactors based on polymer carriers and imprinting lithography to realize simultaneous topographic and chemical patterning. We present two applications to demonstrate the patterning ability of our method, including synthesizing an ultrafine structured layer of photoluminescent Eu(III) complex on polymer substrate, as well as creating a freestanding poly(maleic anyhydride-alt-1-octadecene)-polyvinyl alcohol copolymer nanostructure. Further studies show that chemical reactions at polymer interfaces were confined within zepto-liter to atto-liter spaces, which corresponded to 103 to 106 molecules. The scale of chemical reactions can be readily tuned through varying imprinting conditions such as pattern geometry, imprinting time, etc. Compared to current patterning techniques, our strategy possesses higher chemical flexibility and compatibility, and allows for better control over the chemical reaction. Not only will this method facilitate fundamental studies of diffusion, reaction dynamics and interfacial chemistry, but it is also highly desired for engineering applications including surface modification, conformal coating and nanofabrication.
Starting Page	96538
Ending Page	96544
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	6
Issue Number	99
Journal	RSC Advances
DOI	10.1039/c6ra22169f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Chemistry Octadecene Chemical reaction Tissue engineering Photoluminescence Polymer Polyvinyl alcohol Nanostructure Copolymer Nanolithography Diffusion Molecular geometry
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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