荧光团
荧光
光致变色
螺吡喃
光化学
纳米颗粒
材料科学
生命科学中的荧光
罗丹明
荧光光谱法
费斯特共振能量转移
荧光相关光谱
共价键
粒径
光谱学
罗丹明B
表征(材料科学)
化学
纳米技术
有机化学
光学
物理化学
催化作用
物理
光催化
量子力学
作者
Florian May,Michael Peter,Andreas Hütten,Luca Prodi,Jochen Mattay
标识
DOI:10.1002/chem.201102961
摘要
Abstract Switchable fluorescent silica nanoparticles have been prepared by covalently incorporating a fluorophore and a photochromic compound inside the particle core. The fluorescence can be switched reversibly between an on‐ and off‐state via energy transfer. The particles were synthesized using different amounts of the photoswitchable compound (spiropyran) and the fluorophore (rhodamine B) in a size distribution between 98 and 140 nm and were characterized in terms of size, switching properties, and fluorescence efficiency by TEM, and UV\Vis and fluorescence spectroscopy.
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