摘要
核酸中通过多重氢键发生的互补碱基之间的分子识别是自发产生的并具有高度的选择性，是遗传信息存储和复制的高效机制之一。近年来由含核酸碱基的类脂形成的表面单层体系，模拟ＤＮＡ复制过程中的互补碱基通过多重氢键而发生的分子识别过程已引起广泛注意［１－２０］，已...
Abstract Fourier transform surface enhanced Raman scattering (FT SERS) spectra of high quality were obtained for a single Langmuir Blodgett monolayer of novel nucleolipid amphiphile deposited on a silver island film prepared through a chemical procedure by using near IR exciation at 1064.1 nm. Characteristic vibration modes of the corresponding complementary nucleic acid bases which transferred along with the monolayers of nucleolipid amphiphiles onto the silver island film were observed obviously. The molecules were chemisorbed on the silver surface with the molecular mechanism leading to SERS. It is the first time that FT SERS spectroscopy is employed to investigate the monolayer of nucleolipid amphiphile deposited on SERS active silver substrates which prepared by chemical procedure.
出处
《光散射学报》
1998年第3期120-126,共7页
The Journal of Light Scattering
基金
国家科委重大项目
国家自然科学基金
