胞嘧啶吸附在粗糙金电极上的表面增强拉曼光谱

电化学（中英文） ›› 2005, Vol. 11 ›› Issue (3): 304-307.

胞嘧啶吸附在粗糙金电极上的表面增强拉曼光谱

吴元菲,李剑锋,吴德印,任斌,田中群

厦门大学化学系,厦门大学化学系,厦门大学化学系,厦门大学化学系,厦门大学化学系福建厦门361005 ,福建厦门361005 ,福建厦门361005 ,福建厦门361005 ,福建厦门361005

收稿日期:2005-08-28 修回日期:2005-08-28 出版日期:2005-08-28 发布日期:2005-08-28

Surface-enhanced Raman Spectra of Cytosine Adsorbed on a Roughened Gold Electrode

WU Yuan-Fei, LI Jian-Feng, WU De-Yin, REN Bin, TIAN Zhong-Qun~

(*)(Department of Chemistry, Xiamen University, Xiamen 361005, China

Received:2005-08-28 Revised:2005-08-28 Published:2005-08-28 Online:2005-08-28

摘要/Abstract

摘要： 应用电化学伏安法和表面增强拉曼光谱(SERS)研究在-1.0 V~0 V电位区间内胞嘧啶于粗糙金电极表面的吸附行为.结果表明,在本实验的电位区间,胞嘧啶是以其N3位垂直吸附在粗糙金电极表面的.在负电位区间环呼吸振动模的强度出现极大值,与其它振动模强度相比,作者认为电磁场的增强和电荷转移均使该谱峰的拉曼信号增强.胞嘧啶的环呼吸振动频率随着电位负移而红移,这意味着它与金电极的成键作用减弱.同时也表明SERS谱可用于研究生物分子在金属电极表面的吸附行为.

关键词: 胞嘧啶, 循环伏安法, 金电极, 表面增强拉曼光谱

Abstract: Cytosine adsorbed on a roughened gold electrode has been investigated by using electrochemical cyclic voltammetry and surface-enhanced Raman spectroscopy (SERS). The results indicate that cytosine was adsorbed on the Au electrode in a perpendicular orientation via the N3 position. As the maximum enhancement of ring breathing mode appears at negative potentials compared with other modes, both the electromagnetic enhancement and the charge transfer mechanism were considered to contribute to the SERS intensity. The binding interaction between cytosine and the gold electrode was weakened when the potential was negatively moved. The result also indicates that the SERS technique can be used to characterize adsorptions of bio-molecules at electrochemical interfaces.

Key words: Cytosine, Cyclic voltammetry, Gold electrode, Surface-enhanced Raman spectra (SERS)

中图分类号:

O646.54

吴元菲,李剑锋,吴德印,任斌,田中群. 胞嘧啶吸附在粗糙金电极上的表面增强拉曼光谱[J]. 电化学（中英文）, 2005, 11(3): 304-307.

WU Yuan-Fei, LI Jian-Feng, WU De-Yin, REN Bin, TIAN Zhong-Qun~. Surface-enhanced Raman Spectra of Cytosine Adsorbed on a Roughened Gold Electrode[J]. Journal of Electrochemistry, 2005, 11(3): 304-307.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://electrochem.xmu.edu.cn/CN/

https://electrochem.xmu.edu.cn/CN/Y2005/V11/I3/304

参考文献

[1]Tian Z Q,Ren B.Adsorption and reaction at electro-chem ical interfaces as probed by surface-enhanced Ra-m an spectroscopy[J].Ann.Rev.Phys.Chem.,2004,55:197. [2]Tian Z Q,Ren B,W u D Y.Surface-enhanced Ram anscattering:From nob le to transition m etals and fromrough surfaces to ordered nanostructures[J].J.Phys.Chem.B,2002,106:9 403. [3]Cao Y C,Jin R,M irk in C A.Nanopartic les w ith Ra-m an spectroscop ic fingerprints for DNA and RNA detec-tion[J].Sc ience,2002,297:1 536. [4]Zhu Ke-rong(朱克荣),Cao Zuo-liang(曹卓良),ChenHuo-p in(陈霍平),et al.Surface-enhanced Ram anspectra of cytosine adsorbed on a silver electrode[J],Ch inese Journal of L ight Scattering,1995,7:215. [5]Ataka K,OsawaM.In situ infrared study of cytosine ad-sorption on gold electrodes[J].J.E lectroanal.Chem.,1999,460:188. [6]Dem ers LM,Ostb lom M,ZhangH,et al.Therm al de-sorption behavior and b ind ing properties of DNA basesand nuc leosides on gold[J].J.Am.Chem.Soc.,2002,124:11 248. [7]W and lowsk i T,Lampner D,L indsay S M.Structureand stab ility of cytosine ad layers on Au(111):an in-si-tu STM study[J].J.E lectroanal.Chem.,1996,404:215. [8]Tao N J,DeRose J A,L indsay S M.Self-assemb ly ofmolecu lar superstructures stud ied by in situ scann ingtunneling m icroscopy:NA bases on gold(111)[J].J.Phys.Chem.,1993,97:910. [9]Gao P,W eaver M J.M etal-adsorbate vibrational fre-quenc ies as a probe of surface bond ing:halides andpseudohalides at gold electrodes[J].J.Phys.Chem.,1986,90:4 057. [10]Holm lin R E,Dand liker P J,Barton J K.Chargetransfer through the DNA base stack[J].Angew.Chem.Int.Ed.Engl.,1997,36:2 715. [11]Zhang R Y,Pang D W,Zhang Z L,et al.Investiga-tion of ordered ds-DNA monolayers on gold electrodes[J].J.Phys.Chem.B,2002,106:11 233. [12]W u D Y,Hayash iM,Tian Z Q.Theoretical d ifferenti-al Ram an scattering cross-sections of totally-symm etricvibrational modes of free pyrid ine and pyrid ine-m etalc luster comp lexes[J].Spectroch im.Acta A,2004,60:137.

[1]	沈银飞, 陈艳丽, 王笙戌, 朱晔, 王文昌, 吴敏娴, 陈智栋. 酸性溶液中苯并三氮唑和3-巯基-1-丙烷磺酸钠在铜电极表面的电化学SERS研究[J]. 电化学（中英文）, 2022, 28(6): 2104451-.
[2]	彭辉远, 王家正, 刘佳, 于欢欢, 林建德, 吴德印, 田中群. 纳米结构金电极上对氨基苯硫酚的电化学反应过程研究[J]. 电化学（中英文）, 2022, 28(4): 2106281-.
[3]	蔡雪凡, 孙升. 多孔电极电池的循环伏安法模拟[J]. 电化学（中英文）, 2021, 27(6): 646-657.
[4]	吴丽文, 王玮, 黄逸凡. 应用镍超微电极的电化学表面增强拉曼光谱技术研究[J]. 电化学（中英文）, 2021, 27(2): 208-215.
[5]	邢逸飞, 李娜, 温晓芳, 韩宏彦, 崔敏, 张聪, 任聚杰, 籍雪平. 基于取代型多酸复合材料的多巴胺电化学检测[J]. 电化学（中英文）, 2020, 26(6): 890-899.
[6]	李明雪, 史杭, 刘佳, 张檬, 周剑章, 吴德印, 田中群. 金电极上偶氮腺嘌呤的电化学行为研究[J]. 电化学（中英文）, 2019, 25(6): 651-659.
[7]	凌云, 汤儆, 刘国坤, 宗铖. 暂态电化学表面增强拉曼光谱研究对硝基苯硫酚分子的电化学还原过程[J]. 电化学（中英文）, 2019, 25(6): 731-739.
[8]	董鹏飞, 李娜, 赵海燕, 崔敏, 张聪, 任聚杰, 藉雪平. Keggin 型磷钨酸盐修饰碳糊电极传感多巴胺的研究[J]. 电化学（中英文）, 2018, 24(5): 555-562.
[9]	郑艳洁，姚宏，翁少煌，彭花萍，龚仕文，黄莉，戴强，林新华. 硫酸特布他林在聚铬黑T修饰电极上的电化学行为及其测定[J]. 电化学（中英文）, 2016, 22(6): 617-623.
[10]	徐敏敏，梅金华，姚建林，顾仁敖. [BMIm]BF₄/Pt电极界面激光诱导电沉积Cu基材料研究[J]. 电化学（中英文）, 2016, 22(6): 577-581.
[11]	吴元菲，庞然，张檬，周剑章，任斌，田中群，吴德印. SPR银金电极上光电化学反应和EC-SERS理论研究[J]. 电化学（中英文）, 2016, 22(4): 356-367.
[12]	陈婵娟，宗铖，刘国坤，任斌*. 银表面罗丹明6G的电化学表面增强拉曼光谱研究[J]. 电化学（中英文）, 2016, 22(1): 32-36.
[13]	杨星，陈平*. 对磺酸基苯偶氮杯[4]芳烃电化学行为研究[J]. 电化学（中英文）, 2016, 22(1): 37-42.
[14]	徐媚, 王静静, 皇甫至超, 王瑛, 何玉韩, 王朝晖. 碱性体系中金电极表面硫氰根离子的宽带和频光谱研究[J]. 电化学（中英文）, 2015, 21(4): 319-325.
[15]	宋秀丽, 贾瑞龙, 董文燕, 梁镇海. 乙炔电催化氧化制备草酸的机理研究[J]. 电化学（中英文）, 2015, 21(4): 353-361.