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| 结晶紫表面增强拉曼与时间关系研究 | |
| 引用本文： | 张枝芝,林漫漫,张泽森,徐斌,姚辉璐,刘军贤. 结晶紫表面增强拉曼与时间关系研究[J]. 广西科学, 2015, 22(2): 121-124 |
| 作者姓名： | 张枝芝 林漫漫 张泽森 徐斌 姚辉璐 刘军贤 |
| 作者单位： | 1. 广西师范大学物理科学与技术学院，广西桂林 541004; 广西科学院生物物理实验室，广西南宁 530007 2. 广西科学院生物物理实验室，广西南宁 530007; 武汉大学化学与分子科学学院，湖北武汉 430072 3. 广西师范大学物理科学与技术学院,广西桂林,541004 4. 广西科学院生物物理实验室,广西南宁,530007 |
| 基金项目： | 广西自然科学基金项目(No.2012GXNSFFA060008;No.2014GXNSFAA118362)资助。 |
| 摘 要： | 【目的】研究银包金纳米颗粒(Ag@AuNP)对结晶紫信号的增强效果与时间的关系。【方法】用新型纳米材料银包金纳米颗粒作为拉曼增强基底,采用785nm激光激发结晶紫表面增强拉曼光谱,统计光谱特征峰强度变化趋势。【结果】结晶紫725cm-1,801cm-1,914cm-1,1177cm-1,1392cm-1,1588cm-1等特征峰强度在0~30min内随时间的延长而逐渐升高,达到一个平台后随时间(30~36min)的增加基本保持不变。【结论】最优最快的结晶紫表面增强光谱的测定时间约为30min,该结论丰富了表面增强拉曼的研究成果。 |
| 关 键 词： | 结晶紫 银包金纳米粒子 表面增强拉曼光谱 |
| 收稿时间： | 2014-12-10 |
| 修稿时间： | 2014-12-25 |
Study on the Relationship between Surface-enhanced Raman Spectroscopy of Crystal Violet and Time |
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| ZHANG Zhi-zhi,LIN Man-man,ZHANG Ze-sen,XU Bin,YAO Hui-lu and LIU Jun-xian. Study on the Relationship between Surface-enhanced Raman Spectroscopy of Crystal Violet and Time[J]. Guangxi Sciences, 2015, 22(2): 121-124 | |
| Authors: | ZHANG Zhi-zhi LIN Man-man ZHANG Ze-sen XU Bin YAO Hui-lu LIU Jun-xian |
| Affiliation: | College of Physics and Technology, Guangxi Normal University, Guilin, Guangxi, 541004, China;Laboratory of Biophysics, Guangxi Academy of Sciences, Nanning, Guangxi, 530007, China,Laboratory of Biophysics, Guangxi Academy of Sciences, Nanning, Guangxi, 530007, China;College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China,College of Physics and Technology, Guangxi Normal University, Guilin, Guangxi, 541004, China,College of Physics and Technology, Guangxi Normal University, Guilin, Guangxi, 541004, China;Laboratory of Biophysics, Guangxi Academy of Sciences, Nanning, Guangxi, 530007, China,Laboratory of Biophysics, Guangxi Academy of Sciences, Nanning, Guangxi, 530007, China and College of Physics and Technology, Guangxi Normal University, Guilin, Guangxi, 541004, China |
| Abstract: | [Objective] The aim of this study is to analyze the relationship between crystal violet signal enhancement effect of gold silver core-shell nanoparticles (Ag@AuNP)and time.[Methods] The new nanomaterial Ag@AuNP is used as Raman enhancement substrate, and surface-enhanced Raman spectroscopy of crystal violet is induced by using 785nm laser excitation.The changes in characteristic peak intensity of Raman spectra are statistically analyzed.[Results] The intensity of crystal violet peaks at 725 cm-1, 801 cm-1, 914 cm-1, 1177 cm-1, 1392 cm-1and 1588 cm-1 increases over time within 0~30 min, and does not change with time after reaching a plateau (30~36 min).[Conclusion] The best fastest measurement time to detect surface-enhanced raman spectrum of crystal violet is 30 min, which greatly improves the period associated with surface-enhanced Raman studies. |
| Keywords: | crystal violet gold silver core-shell nanoparticles (AgAuNP) surface-enhanced Raman spectroscopy(SERS) |
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