碳纳米管的螺旋式聚碳二胺遮蔽使得纳米管内部激发能转移调制成为可能
Januka Budhathoki-Uprety1, Prakrit V Jena, Daniel Roxbury
1Memorial Sloan Kettering Cancer Center , New York, New York 10065, United States.
Journal of the American Chemical Society
|October 25, 2014
概括
研究人员开发了聚碳胺聚合物来覆盖单壁碳纳米管 (SWCNTs). 这种功能调节SWCNT光,并使可控的能量传输用于传感应用.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 单壁碳纳米管 (SWCNTs) 对近红外光学探测器和传感器来说是有前途的.
- 控制SWCNT光和表面功能对于这些应用至关重要.
- 为了保持SWCNT属性,需要非共价功能化方法.
研究的目的:
- 为SWCNTs的非共价封装合成聚碳二胺.
- 为了使SWCNT光和表面功能化的同时调制.
- 为了证明可控制的内部纳米管激发能传输用于传感.
主要方法:
- 一个聚碳胺库的合成.
- 用聚合物对SWCNT进行非共价封装.
- 聚合物-SWCNT复合物的特性.
- 测量光发光效率和激发能量的转移.
主要成果:
- 聚碳二胺使SWCNTs的水性悬浮成为可能.
- 订制聚合物覆盖调制SWCNT光学特性,光发光变化高达12倍.
- 已证明可控制和可逆的纳米管内部激发能传输.
- 启用了动态自组装和拆卸的动态测量.
结论:
- 聚碳胺封装为SWCNT功能化提供了一个多功能平台.
- 这种方法可以精确控制SWCNT的光学特性.
- 开发的系统有助于先进的传感和动态组装研究.
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