Light-triggered Assembly of Gold Nanorods based on Photoisomerization of Spiropyrans
Light-triggered Assembly of Gold Nanorods based on Photoisomerization of Spiropyrans
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DOI：
10.1246/cl.161131
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发表时间：
2017-01
影响因子：
1.6
通讯作者：
C. Mochizuki;H. Shinmori
中科院分区：
文献类型：
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作者：
C. Mochizuki;H. Shinmori
研究了用可光致异构化的螺吡喃配体衍生的金纳米棒（AuNR）的自组装。在紫外线照射下，螺吡喃与二硫戊环在表面官能化的AuNRs形成了端对端组装体，伴随着螺吡喃部分的异构化，同时显示出纵向等离子体带的红移和部花青形式导致的吸光度增加。 AuNR 的网络结构最终是通过紫外线照射“按需”构建的。
The self-assembly of gold nanorods (AuNRs) derivatized with photoisomerizable spiropyran ligands was investigated. Under UV irradiation, the AuNRs that were functionalized on the surface by spiropyran with a dithiolane formed end-to-end assemblies accompanied with isomerization of the spiropyran moiety, simultaneously showing a red-shift of the longitudinal plasmon band and the increase in absorbance resulted from the merocyanine form. The networked structure of AuNRs was ultimately built “on demand” by UV irradiation.