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Thiocholesterol on gold : A nanoporous molecular assembly
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- Yang, Z. P. (author)
- Université Libre de Bruxelles, Belgium
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- Engquist, Isak (author)
- Linköpings universitet,Tillämpad Fysik,Tekniska högskolan
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- Kauffmann, J.-M. (author)
- Université Libre de Bruxelles, Belgium
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- (creator_code:org_t)
- 1996-04-03
- 1996
- English.
- In: Langmuir. - : American Chemical Society. - 0743-7463 .- 1520-5827. ; 12:7, s. 1704-1707
- Journal article (peer-reviewed)
Abstract
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- The formation of thiocholesterol (TC) monolayers on gold has been studied by ellipsometry, contact angle measurements, infrared spectroscopy, and cyclic voltammetry. Subsequent treatment of the TC assembly with 11-mercaptodeuterioundecanoic acid (MDUA) shows that the average surface coverage is about 65% of that of a self-assembled alkanethiolate monolayer and that it has a large number of molecular defects. These defects exist because of a mismatch between the size and shape of the TC molecule and the pinning distance at the Au(111) crystal lattice. Potential uses of these defect-rich structures are microelectrode arrays for electroanalytical and biosensor applications.
Keyword
- TECHNOLOGY
- TEKNIKVETENSKAP
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- Yang, Z. P.
- Engquist, Isak
- Kauffmann, J.-M.
- Liedberg, Bo
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- Linköping University
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