Angular modulation of single-molecule fluorescence by gold nanoparticles on DNA origami templates
Angular modulation of single-molecule fluorescence by gold nanoparticles on DNA origami templates
复制标题
DNA折纸模板上金纳米粒子对单分子荧光的角度调制
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
P. Tinnefeld
中科院分区：
文献类型：
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作者：
F. Möller;P. Holzmeister;T. Sen;G. Acuna;P. Tinnefeld
摘要我们研究了位于球形金纳米颗粒附近的单个染料在线偏振激发光旋转下的角荧光强度调制。纳米颗粒和荧光团相对于彼此和入射电场的精确定位和对准通过三维自组装DNA折纸实现。一个固定的距离和两个不同的纳米粒子直径的强度图，揭示偏振相关的增强和猝灭的荧光强度的数值模拟吻合得很好。
Abstract We study the angular fluorescence intensity modulation of a single dye positioned near a spherical gold nanoparticle, induced by rotation of linearly polarized excitation light. Accurate positioning and alignment of nanoparticle and fluorophore with respect to each other and the incoming electric field is achieved by a three-dimensional, self-assembled DNA origami. An intensity map is obtained for a fixed distance and two different nanoparticle diameters, revealing polarization-dependent enhancement and quenching of fluorescence intensity in good agreement to numerical simulations.
影响因子：
46.2
作者：
Tørring T;Voigt NV;Nangreave J;Yan H;Gothelf KV
通讯作者：
Gothelf KV