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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. [点击复制]
- ZHANG Zhi-zhi,LIN Man-man,ZHANG Ze-sen,XU Bin,YAO Hui-lu,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. [点击复制]
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| 结晶紫表面增强拉曼与时间关系研究 |
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张枝芝1,2, 林漫漫2,3, 张泽森1, 徐斌1,2, 姚辉璐2, 刘军贤1
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| (1.广西师范大学物理科学与技术学院, 广西桂林 541004;2.广西科学院生物物理实验室, 广西南宁 530007;3.武汉大学化学与分子科学学院, 湖北武汉 430072) |
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| 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785 nm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725 cm-1,801 cm-1,914 cm-1,1177 cm-1,1392 cm-1,1588 cm-1等特征峰强度在0~30 min内随时间的延长而逐渐升高,达到一个平台后随时间(30~36 min)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30 min,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 |
| DOI：10.13656/j.cnki.gxkx.20150126.015 |
| 投稿时间：2014-12-10修订日期：2014-12-25 |
| 基金项目:广西自然科学基金项目(No.2012GXNSFFA060008,No.2014GXNSFAA118362)资助。 |
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| Study on the Relationship between Surface-enhanced Raman Spectroscopy of Crystal Violet and Time |
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ZHANG Zhi-zhi1,2, LIN Man-man2,3, ZHANG Ze-sen1, XU Bin1,2, YAO Hui-lu2, LIU Jun-xian1
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| (1.College of Physics and Technology, Guangxi Normal University, Guilin, Guangxi, 541004, China;2.Laboratory of Biophysics, Guangxi Academy of Sciences, Nanning, Guangxi, 530007, China;3.College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, 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. |
| Key words: crystal violet gold silver core-shell nanoparticles (Ag@AuNP) surface-enhanced Raman spectroscopy(SERS) |
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