Document Detail

Nondestructive replication of self-ordered nanoporous alumina membranes via cross-linked polyacrylate nanofiber arrays.
MedLine Citation:
PMID:  18507449     Owner:  NLM     Status:  MEDLINE    
Ordered nanofiber arrays are a promising material platform for artificial adhesive structures, tissue engineering, wound dressing, sensor arrays, and self-cleaning surfaces. Their production via self-ordered porous alumina hard templates serving as shape-defining molds is well-established. However, their release requires the destruction of the hard templates, the fabrication of which is costly and time-consuming, by wet-chemical etching steps with acids or bases. We report the nondestructive mechanical extraction of arrays of cross-linked polyacrylate nanofibers from thus recyclable self-ordered nanoporous alumina hard templates. Silica replicas of the latter were synthesized using the extricated nanofiber arrays as secondary molds that could be mechanically detached from the molded material. The approach reported here, which can be combined with microstructuring, may pave the way for the high-throughput production of both functional nanofiber arrays and ordered nanoporous membranes consisting of a broad range of material systems.
Silko Grimm; Reiner Giesa; Kornelia Sklarek; Andreas Langner; Ulrich Gösele; Hans-Werner Schmidt; Martin Steinhart
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-05-29
Journal Detail:
Title:  Nano letters     Volume:  8     ISSN:  1530-6984     ISO Abbreviation:  Nano Lett.     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-07-09     Completed Date:  2008-10-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1954-9     Citation Subset:  IM    
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany.
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MeSH Terms
Acrylic Resins / chemistry*
Aluminum Oxide / chemistry*
Cross-Linking Reagents / chemistry*
Microscopy, Electron, Scanning
Nanostructures / chemistry*,  ultrastructure*
Polymers / chemistry*
Reg. No./Substance:
0/Acrylic Resins; 0/Cross-Linking Reagents; 0/Polymers; 1344-28-1/Aluminum Oxide

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