Hybrid Nanostructures for Enhanced Light-Harvesting: Plasmon Induced Increase in Fluorescence from Individual Photosynthetic Pigment-Protein Complexes
Hybrid Nanostructures for Enhanced Light-Harvesting: Plasmon Induced Increase in Fluorescence from Individual Photosynthetic Pigment-Protein Complexes
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DOI：
10.1021/nl202772h
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发表时间：
2011-11-01
期刊：
影响因子：
10.8
通讯作者：
Koehler, Juergen
中科院分区：
文献类型：
--
作者：
Beyer, Sebastian R.;Ullrich, Simon;Koehler, Juergen
我们研究了超过13000个单独的光合色素蛋白复合物与球形金纳米颗粒相互作用的光学响应。采用双嵌段共聚物胶束纳米光刻技术将纳米点排列成准六边形阵列。在纳米粒子等离子激元共振的光谱范围内激发蛋白质可以明显增强蛋白质的荧光强度，而在等离子激元共振之外的激发则没有效果。这一结果为构建高效的混合光收集装置提供了一种策略。
We studied the optical response from more than 13 000 individual photosynthetic pigment-protein complexes interacting with spherical gold nanoparticles. The nanodots were arranged in a quasi-hexagonal array by diblock copolymer micellar nanolithography. Exciting the proteins within the spectral range of the nanoparticles' plasmon resonance yields a clear enhancement of the protein fluorescence intensity, whereas excitation far out of the plasmon resonance features no effect. This result indicates a strategy for the construction of efficient hybrid light-harvesting devices.