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基于DNA的光纳米钻石的自组装

Tao Zhang¹, Andre Neumann¹, Jessica Lindlau¹

¹†Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Geschwister-Scholl-Platz 1, D-80539 München, Germany.

Journal of the American Chemical Society

|July 22, 2015

概括

研究人员开发了一种自下而上的方法, 精确地将光纳米钻石放在DNA原形结构上. 这种技术可以创建有序的自旋阵列,用于传感和生物成像的高级应用.

科学领域:

纳米技术
材料科学
量子物理

背景情况:

对于量子技术来说, 有序自旋阵列至关重要.
目前组装自旋阵列的方法缺乏精度和可扩展性.
光纳米钻石为传感和信息处理提供独特的量子特性.

研究的目的:

展示一个自下而上的方法来确定和可扩展的顺序旋转数组.
将光纳米钻石 (ND) 精确地放置在DNA原形结构上.
在表面修饰和DNA组装过程中保持ND的光特性.

主要方法:

开发了DNA功能化纳米钻石的表面修饰策略.
使用DNA原形结构进行精确的纳米级定位.
自己组装的DNA功能化NDs到预定义的几何形状.
进行光学研究以确认光性质的保存.

主要成果:

在DNA原形上定位光纳米钻石的纳米精度.
证明了可靠和广泛适用的表面修改策略.
证实空色中心光在修改和组装后得到保存.
在预定义的几何形状中成功创建完美分散的ND.

结论:

这种自下而上的方法可以实现光ND的纳米级排列.
该方法使光学活跃元件在复杂的几何形状中整合得更容易.
潜在的应用包括自组装的自旋网,增强等离子体的自旋传感器和先进的生物成像标签.

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