Spatial and Directional Control over Self-Assembly Using Catalytic Micropatterned Surfaces

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....

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2014-04, Vol.53 (16), p.4132-4136
Main Authors: Olive, Alexandre G. L., Abdullah, Nor Hakimin, Ziemecka, Iwona, Mendes, Eduardo, Eelkema, Rienk, van Esch, Jan H.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Directional control
Fibers
Formations
Hydrogels
interfaces
micropatterns
Nanofibers
nanostructures
Organizations
Self assembly
surface chemistry
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Summary: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. Following a pattern: 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. A unique mechanism of fiber formation for a synthetic system, using building blocks added at the interface, leads to orientated structures. Therefore organization is attained at the micro‐ and nanoscale.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201310776