• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Chemical Bulletin >COLLOIDAL GOLD NANOPARTICLES: Interaction with ozone and analytical potential
【24h】

COLLOIDAL GOLD NANOPARTICLES: Interaction with ozone and analytical potential

机译：胶体金纳米粒子：与臭氧的相互作用和分析潜力

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Two different types of colloidal gold nanoparticles were produced as hydrosol and recognized from their electronic absorption spectra. Using AuCl 3 and hydroxylamine gold nanorods with aspect ratio in the range between 2 and 4 and average diameter between 10 and 15 nm were produced. When treated with ozone the surface plasmon resonance (SPR) band of gold nanorod undergoes a blue shift of about 50 nm. On the other hand, spherical gold nanoparticles with average diameter around 20 nm were produced from AuCl 3 reduced with black tea infusion. When treated with ozone the SPR band of the spherical gold nanoparticles show a red shift of more than 50 nm. This demonstrates that the shape of the gold nanoparticles deeply affect their response in the interaction with chemicals in view of the potential analytical application of gold nanoparticles as active materials in chemical sensors. A theoretical rationalization of the results is proposed.
机译：两种不同类型的胶体金纳米颗粒以水溶胶形式产生，并从其电子吸收光谱中识别出来。使用AuCl 3和羟胺金纳米棒，其长宽比在2至4范围内，平均直径在10至15 nm之间。当用臭氧处理时，金纳米棒的表面等离振子共振（SPR）带发生约50 nm的蓝移。另一方面，由红茶浸液还原的AuCl 3产生了平均直径约为20 nm的球形金纳米颗粒。当用臭氧处理时，球形金纳米颗粒的SPR带显示超过50 nm的红移。这表明，鉴于金纳米颗粒作为活性物质在化学传感器中的潜在分析应用，金纳米颗粒的形状深刻影响了它们在与化学物质相互作用中的响应。提出了理论上合理的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号