Controlling the Passage of Light through Metal Microchannels by Nanocoatings of Phospholipids
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- 作者：Shannon M. Teeters-Kennedy ; Kenneth R. Rodriguez ; Trisha M. Rogers ; Keith A. Zomchek ; Shaun M. Williams ; Alexandra Sudnitsyn ; Lauren Carter ; Vadim Cherezov ; Martin Caffrey ; James V. Coe
- 刊名：Journal of Physical Chemistry B
- 出版年：2006
- 出版时间：November 2, 2006
- 年：2006
- 卷：110
- 期：43
- 页码：21719 - 21727
- 全文大小：1159K
- 年卷期：v.110,no.43(November 2, 2006)
- ISSN：1520-5207
文摘
The flow of polarized light through a metal film with an array of microchannels is controlled by the phaseof an optically active, phospholipid nanocoating, even though the coating does not cover the open area of themicrochannels. The molecular details of the assembly (DPPC phospholipid monolayer/bilayer on a hexadecanethiol monolayer on a copper- or nickel-coated microarray) were determined using the infrared, surface-plasmon-mediated, extraordinary transmission of the metal microarrays. Infrared absorption spectra with greatlyenhanced absorptions by comparison to literature were recorded and used as a diagnostic for the phase,composition, and molecular geometry of these nanocoatings. This approach presents new tools for nanoscaleconstruction in constricted microspaces, which may ultimately be useful with individual microchannels.