Spatial and directional control over self-assembly using catalytic micropatterned surfaces

Alexandre G. L. Olive, and Nor Hakimin Abdullah, and Iwona Ziemecka, and Eduardo Mendes, and Rienk Eelkema, and Jan H. Van Esch, (2014) Spatial and directional control over self-assembly using catalytic micropatterned surfaces. Angewandte Chemie International Edition, 53 (16). pp. 4132-4136. ISSN 1521-3773

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Catalyst-assisted self-assembly is widespread in nature to achieve spatial control over structure formation. Reported herein is the formation of hydrogel micropatterns on catalytic surfaces. Gelator precursors react on catalytic sites to form building blocks which can self-assemble into nanofibers. The resulting structures preferentially grow where the catalyst is present. Not only is a first level of organization, allowing the construction of hydrogel micropatterns, achieved but a second level of organization is observed among fibers. Indeed, fibers grow with their main axis perpendicular to the substrate. This feature is directly linked to a unique mechanism of fiber formation for a synthetic system. Building blocks are added to fibers in a confined space at the solid–liquid interface.

Item Type: Non-Indexed Article
Subject Heading: Nanostructures
Subject Heading: Surface chemistry
Keywords: Interfaces - Micropatterns - Nanostructures - Self-assembly - Surface chemistry
Faculty: Faculty of Earth Sciences
Deposited By: En. Pahmi Abdullah
Date Deposited: 05 May 2014 04:07
Last Modified: 23 Feb 2015 02:27

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