title: The effect of gold colloid on the fluorescence spectrum from Safranine T: a physical mechanism based on resonance light scattering.
abstract: The non-monotonic change of fluorescence intensity from Safranine T was observed experimentally by adding gold colloids to the Safranine T aqueous solution. Increasing the content of gold colloids leads to the fluorescence emission peak red shift and increases first and then decreases. We believe that one of the important reasons of the fluorescence changing and shifting is due to the resonance light scattering from gold nanoparticles which is stimulated by the fluorescence of Safranine T and is tunable by the shell thickness of the ST that coated around the gold particles.
authors.affiliation: The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Jianjun
authors.initials: J
authors.lastname: Li
authors.forename: Jian
authors.initials: J
authors.lastname: Zhu
authors.forename: Junwu
authors.initials: J
authors.lastname: Zhao
mesh_terms: D003102:Colloids; D006046:Gold / Q000737:chemistry*; D008027:Light; D012542:Scattering, Radiation; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D003102:Colloids; D006046:Gold