1373308-67-8Relevant academic research and scientific papers
Synthesis and characterization of photoswitchable fluorescent SiO 2 nanoparticles
May, Florian,Peter, Michael,Huetten, Andreas,Prodi, Luca,Mattay, Jochen
, p. 814 - 821 (2012)
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 UVVis and fluorescence spectroscopy. Switchable fluorescent silica nanoparticles have been prepared by incorporating a fluorophore and a photoswitch within the particle core. The fluorescence can be reversibly switched between an on- and off-state via energy transfer. Particles have been obtained that contain different amounts of the photoswitch and fluorophore, and have been characterized in terms of size, switching properties, and fluorescence efficiency (see figure). Copyright
