Source:http://linkedlifedata.com/resource/pubmed/id/19459615
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2009-6-10
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pubmed:abstractText |
Up to now, little effort has been made to exploit large-area high-throughput patterning by block copolymer (BCP) lithography to generate nanostructured substrates with periods well below 100 nm for surface-enhanced Raman scattering (SERS). We show that simple BCP-templated galvanic displacement reactions yield dense arrays of mushroom-shaped gold nanopillars with a period of 50 nm. The nanoporous BCP films used as templates were obtained by swelling-induced reconstruction of reverse micelle monolayers deposited on silicon wafers. Coupling of adjacent mushroom caps almost impinging on each other combined with their strong local curvature results in a high spatial density of hot spots in the narrow gaps between them. Thus, substrates characterized by high SERS efficiencies are obtained.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1530-6992
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
9
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2384-9
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pubmed:year |
2009
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pubmed:articleTitle |
Nanostructured gold films for SERS by block copolymer-templated galvanic displacement reactions.
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pubmed:affiliation |
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany. yongwang@njut.edu.cn
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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