Fluorescent Gold Nanoparticles : Synthesis of Composite Materials of Two-Component Disulfide Gels and Gold Nanoparticles
Fluorescent Gold Nanoparticles : Synthesis of Composite Materials of Two-Component Disulfide Gels and Gold Nanoparticles
复制标题
荧光金纳米粒子：双组分二硫化物凝胶与金纳米粒子复合材料的合成
DOI：
10.1002/chem.201300659
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Masahiko Yamaguchi
中科院分区：
文献类型：
--
作者：
Koji Yamamoto;Zengjian An;Nozomi Saito;Masahiko Yamaguchi
含有二硫化物基团的假对映体乙炔基螺烯低聚物形成双组分凝胶，其显示出与不含二硫化物基团的凝胶不同的溶剂性质。二硫化物凝胶与金纳米颗粒反应，并且所得有机-无机复合材料在600-800 nm之间显示荧光发射，沿着来自低聚物的450 nm的发射。 负载低聚物的二硫键凝胶和分离的金纳米颗粒没有显示出前者的发射。600-800 nm的发射在加热形成溶胶时可逆地消失，这伴随着450 nm处的发射的增强。 在固态下也观察到了新的发射。
Pseudoenantiomeric ethynylhelicene oligomers containing a disulfide group formed two‐component gels, which showed different solvent properties from gels without the disulfide group. The disulfide gels reacted with gold nanoparticles, and the resulting organic–inorganic composite materials exhibited fluorescence emission between 600–800 nm, along with emission from the oligomers at 450 nm. The disulfide gels and isolated gold nanoparticles loaded with the oligomers did not show the former emission. The 600–800 nm emission reversibly disappeared upon sol formation with heating, which was accompanied by an enhancement of the emission at 450 nm. The novel emission was also observed in the solid state.