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| 银岛膜表面胸腺嘧啶吸附行为的表面增强拉曼光谱和表面增强红外光谱研究 | |
| 引用本文： | Guo H,Bi LH,Ding L,Mo YJ. 银岛膜表面胸腺嘧啶吸附行为的表面增强拉曼光谱和表面增强红外光谱研究[J]. 光谱学与光谱分析, 2011, 31(12): 3273-3276. DOI: 10.3964/j.issn.1000-0593(2011)12-3273-04 |
| 作者姓名： | Guo H Bi LH Ding L Mo YJ |
| 作者单位： | 1. 河南大学物理与电子学院,河南开封475004;Institute for Molecular Science, The Graduate University for Advanced Studies(Sokendai), Okazaki 444-8585, Japan 2. 黄河水利职业技术学院自动化工程系,河南开封,475003 3. 河南大学物理与电子学院,河南开封,475004 |
| 基金项目： | 国家自然科学基金项目(10274019,10674041)资助 |
| 摘 要： | 利用激光刻蚀法制备了具有化学纯净表面的银岛膜,该岛膜有很好的表面增强特性。利用表面增强拉曼光谱和表面增强红外光谱对胸腺嘧啶分子在银岛膜表面的吸附状态进行了对比研究。表面增强拉曼光谱中CN和C—O伸缩振动模式的出现表明胸腺嘧啶分子由原来的酮式结构变成了烯醇式结构;C(4)O伸缩振动谱带明显增强和N(3)的去质子化异构体特征峰的存在证明胸腺嘧啶分子是通过O(8)和N(3)的共同作用倾斜地吸附在银岛膜表面。对10-5 mol.L-1胸腺嘧啶在银岛膜表面上的红外光谱利用欧米采样器进行了反射法测量,发现其红外吸收增强了200倍。红外信号分析的结果支持了胸腺嘧啶分子通过O(8)与银表面发生相互作用的论断,同时也可得出胸腺嘧啶倾斜地吸附在银岛膜表面的结论。 |
| 关 键 词： | 胸腺嘧啶 银岛膜 表面增强拉曼光谱 表面增强红外光谱 |
Thymine on silver island films: surface-enhanced Raman scattering and surface-enhanced infrared absorption studies |
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| Guo Hao,Bi Li-heng,Ding Li,Mo Yu-jun. Thymine on silver island films: surface-enhanced Raman scattering and surface-enhanced infrared absorption studies[J]. Spectroscopy and Spectral Analysis, 2011, 31(12): 3273-3276. DOI: 10.3964/j.issn.1000-0593(2011)12-3273-04 | |
| Authors: | Guo Hao Bi Li-heng Ding Li Mo Yu-jun |
| Affiliation: | GUO Hao1,3,BI Li-heng2,DING Li2,MO Yu-jun1 1.School of Physics and Electronics,Henan University,Kaifeng 4750 04,China 2.Automation Engineering Department,Yellow River Conservancy Technical Institute,Kaifeng 475003,China 3.Institute for Molecular Science,The Graduate University for Advanced Studie s(Sokendai),Okazaki 444-8585,Japan |
| Abstract: | Thymine,being one of the four nucleobases in the nucleic acid of DNA,has received an increasing interest due to itspotential importance in genetics and possible applications in medical science.In the present study,adsorption of thymine onlaser-ablated silver island films was comparatively analyzed by means of surface-enhanced Raman scattering(SERS)and surface-enhanced infrared absorption(SEIRA).Two new bands at 1 305and 1 573cm-1 appeared in the SERS spectrum of thymine onsilver island films and represented... |
| Keywords: | Thymine Silver island films Surface-enhanced Raman scattering Surface-en hanced infrared absorption |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ | |