State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
Sci Rep. 2018 Jun 18;8(1):9261. doi: 10.1038/s41598-018-27679-5.
A biological template strategy is implemented for the fabrication of hollow noble metal composite nanospheres within the ordered array nanostructures by introducing butterfly wings to some convenient technique procedure. Butterfly wings are activated by ethylenediamine to increase the reactive sites on the chitin component, on which Ag nanoparticles are in situ formed and serve as "seeds" to direct further incorporation during the following impregnation procedure. Butterfly wings could function as bio-substrate to provide an ordered array and regulate the synthesis process by providing active reaction sites (e.g. -CONH- and -OH). Thus, hollow Ag-Au nanospheres are loaded on the wings' surface layer and inside the ordered array nanostructures homogeneously, which would have potential applications in surface enhanced Raman scattering (SERS).
采用生物模板策略，通过向一些方便的技术程序中引入蝴蝶翅膀，在有序排列的纳米结构内制造空心贵金属复合纳米球。乙二胺激活蝴蝶翅膀，增加甲壳素成分上的反应位点，在这些反应位点上原位形成 Ag 纳米颗粒，作为“种子”，指导后续浸渍过程中的进一步结合。蝴蝶翅膀可以作为生物基底，通过提供活性反应位点（例如 -CONH- 和 -OH），提供有序排列并调节合成过程。因此，空心 Ag-Au 纳米球均匀地负载在翅膀的表面层和有序排列的纳米结构内，这在表面增强拉曼散射 (SERS) 中有潜在的应用。
