Source:http://linkedlifedata.com/resource/pubmed/id/19546496
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
28
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pubmed:dateCreated |
2009-6-24
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pubmed:abstractText |
Angled nano-scale tunnels with high aspect ratio were fabricated on poly(methyl methacrylate) (PMMA) using a focused ion beam (FIB). The fabrication parameters such as ion fluence, incidence angle, and acceleration voltage of the Ga(+) ion beam were first studied on the PMMA surface to explore the formation of the nano-scale configurations such as nano-holes and cones with diameter in the range of 50-150 nm at an ion beam acceleration voltage of 5-20 kV. It was also found that the PMMA surface exposed to FIB was changed into an amorphous graphitic structure. Angled nano-scale tunnels were fabricated with high aspect ratio of 700-1500 nm in depth and 60 nm in mean diameter at an ion beam acceleration voltage of 5 kV and under a specific ion beam current. The angle of the nano-tunnels was found to follow the incident angle of the ion beam tilted from 0 degrees to 85 degrees , which has the potential for creating a mold for anisotropic adhesives by mimicking the hairs on a gecko's feet.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1361-6528
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
15
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
285301
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pubmed:meshHeading | |
pubmed:year |
2009
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pubmed:articleTitle |
An angled nano-tunnel fabricated on poly(methyl methacrylate) by a focused ion beam.
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pubmed:affiliation |
Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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