光散射学报, 2013, 25 (1): 29, 网络出版: 2014-03-11   

金纳米粒子聚集体系的制备及其SERS效应表征

Preparation of Gold Nanoparticle Aggregates and Characterization for Their SERS Effect
作者单位
上海师范大学化学系, 上海 200234
摘要
以Na2S作为金纳米粒子的还原制备与聚集剂制备了金纳米粒子聚集体系。在制备过程中通过紫外可见光谱对制备条件进行了优化。TEM表征显示聚集体系中的金纳米粒子均为球形, 且聚集状态呈现出较好的均匀性。将这一聚集体系作为SERS基底应用于若干氨基酸分子的SERS光谱表征与分析。初步的研究表明Na2S-金纳米粒子聚集体系可有效地应用于生物分子的SERS光谱表征与分析。
Abstract
This article used Na2S as a chemical reduction and aggregation agent to prepare unique gold nanoparticle aggregates under the room-temperature condition. By ultraviolet-visible spectroscopy, the preparation procedure and technological conditions were optimized for the purpose of preparation of steady aggregates. The transmission electron microscopic images display that the as-prepared gold nanoparticles are spherical and the gold nanoparticles are gathered so effectively that these particles can finally form well-defined aggregates. Furthermore, the as-prepared aggregates were used as the substrates of surface-enhanced Raman scattering (SERS) measurements to characterize several amino acid molecules such as glycine and histidine. Previous investigations show that the as-prepared gold nanoparticle aggregates possess so good SERS activity and this make it useful for SERS analysis of a wide variety of biomolecules.

李玲, 曹晓卫, 李欣然, 张志学, 冯小平. 金纳米粒子聚集体系的制备及其SERS效应表征[J]. 光散射学报, 2013, 25(1): 29. LI Ling, CAO Xiao-wei, LI Xin-ran, ZHANG Zhi-xue, FENG Xiao-ping. Preparation of Gold Nanoparticle Aggregates and Characterization for Their SERS Effect[J]. The Journal of Light Scattering, 2013, 25(1): 29.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!