文献类型：期刊文献

中文题名：Synthesis of Hollow Gold Nanospheres and Their Applications in Surface-enhanced Raman Scattering and DNA Biosensor

英文题名：Synthesis of Hollow Gold Nanospheres and Their Applications in Surface-enhanced Raman Scattering and DNA Biosensor

作者：Meng Qi[1];Li Hui[2];Yang Haifeng[2];Li Heixing[1,2]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China

年份：2010

卷号：28

期号：10

起止页码：2015

中文期刊名：中国化学（英文版）

外文期刊名：CHINESE JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000283962500036)】；

语种：英文

外文关键词：nanostructures; chemical synthesis; Raman spectroscopy; optical properties

摘要：Hollow gold nanospheres (HGNs) with nanopinholes were prepared by chemical reduction of HAuCI4 with aqueous KBH4 in the presence of the Bu4PBr template. The HGNs could be served as substrates for surface-enhanced Raman scattering (SERS), which exhibited much higher surface enhancement than the solid gold nanoparticles in case of Rhodamine 60 as a molecule probe. Moreover, the HGNs could also be used in the modified electrode to detect DNA and superior to the solid counterpart of the similar size. Based on the detailed characterizations by transmission electron micrograph (TEM), field emission scanning electron micrograph (FESEM) and UV-visible absorption spectroscopy, a plausible mechanism for forming HGNs was proposed. Meanwhile, the promoting effect of the hollow gold nanospheres on the SERS was discussed briefly.