Teeters-Kennedy Shannon M, Rodriguez Kenneth R, Rogers Trisha M, Zomchek Keith A, Williams Shaun M, Sudnitsyn Alexandra, Carter Lauren, Cherezov Vadim, Caffrey Martin, Coe James V
Department of Chemistry, The Ohio State University, Columbus, Ohio 43210-1173, USA.
J Phys Chem B. 2006 Nov 2;110(43):21719-27. doi: 10.1021/jp062201g.
The flow of polarized light through a metal film with an array of microchannels is controlled by the phase of an optically active, phospholipid nanocoating, even though the coating does not cover the open area of the microchannels. 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 greatly enhanced 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 nanoscale construction in constricted microspaces, which may ultimately be useful with individual microchannels.
通过具有微通道阵列的金属膜的偏振光流由光学活性磷脂纳米涂层的相位控制，即使该涂层并未覆盖微通道的开放区域。利用金属微阵列的红外、表面等离子体介导的超常透射确定了组装体的分子细节（铜或镍涂层微阵列上十六烷硫醇单层上的二棕榈酰磷脂酰胆碱磷脂单层/双层）。记录了与文献相比吸收大大增强的红外吸收光谱，并将其用作这些纳米涂层的相位、组成和分子几何结构的诊断工具。这种方法为受限微空间中的纳米级构建提供了新工具，最终可能对单个微通道有用。
