期刊
NANOSCALE
卷 6, 期 10, 页码 5138-5145出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr06425e
关键词
-
类别
资金
- French National Research Agency (ANR) [ANR-09-NANO-027-04]
- INSERM
- Association pour la Recherche contre le Cancer
- Ligue du Rhone
- Region Rhone-Alpes, CNRS, Universite Claude Bernard Lyon 1
- Ecole Normale Superieure de Lyon
- Grants-in-Aid for Scientific Research [23550174] Funding Source: KAKEN
A great number of studies focus their interest on the photophysical properties of fluorescent hybrid gold nanoparticles for potential applications in biotechnologies such as imaging and/or treatment. Spherical gold nanoparticles are known to quench a chromophore fluorescent signal, when moieties are located in their close vicinity. The use of a polymer spacer on such a system allowed only partial recovery of the dye emission by controlling the surface to dye distance. Gold-based anisotropic sharp nanostructures appear to exhibit more interesting features due to the strong electric field generated at their edges and tips. In this paper, a complete study of hybrid fluorescent bipyramidal-like gold nanostructures is presented. We describe the chemical synthesis of gold bipyramids functionalized with fluorescent water-soluble polymers and their photophysics both in solution and on a single object. We show that the use of a bipyramidal shape instead of a spherical one leads to total recovery of the fluorescence and even to an enhancement of the emission of the dyes by a factor of 1.4.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据