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纳米银对表面吸附核黄素分子光谱性质的影响
引用本文:张怀斌,李怀祥,王晓艳,刘文波.纳米银对表面吸附核黄素分子光谱性质的影响[J].发光学报,2011,32(4):393-397.
作者姓名:张怀斌  李怀祥  王晓艳  刘文波
作者单位:1. 滨州医学院(烟台校区), 山东 烟台 264003; 2. 山东师范大学 化学化工与材料科学学院, 山东 济南 250014
基金项目:国家自然科学基金(60671010,20775045)资助项目
摘    要:采用氧化还原法制备了纳米尺寸的银溶胶,研究了纳米银粒子对核黄素(Riboflavin,Ri)水溶液吸收光谱和荧光光谱的影响.Ri溶液中加入纳米银粒子,随着纳米银浓度的增大,吸收强度不断增强,372 nm处吸收峰红移,而444 nm处吸收峰蓝移,同时发生荧光猝灭现象.从无辐射通道增强、纳米银表面局域场减弱及Ri分子第一激...

关 键 词:银纳米粒子  核黄素  吸收光谱  荧光猝灭  能量转移
收稿时间:2010-10-27

Effects of Silver Nanoparticles on Spectroscopy Properties of Riboflavin Adsorbed on The Surface
ZHANG Huai-bin,LI Huai-xiang,WANG Xiao-yan,LIU Wen-bo.Effects of Silver Nanoparticles on Spectroscopy Properties of Riboflavin Adsorbed on The Surface[J].Chinese Journal of Luminescence,2011,32(4):393-397.
Authors:ZHANG Huai-bin  LI Huai-xiang  WANG Xiao-yan  LIU Wen-bo
Institution:1. Binzhou Medical University, Yantai 264003, China; 2. College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
Abstract:The silver nanoparticles have been prepared by oxidation and reduction method and their effects on the optical behaviors of riboflavin aqueous solution have been investigated.The absorption intensity of riboflavin was enhanced.After the silver nanoparticles added into the solution,the 372 nm peak was red-shifted and the 444 nm peak was blue-shifted.The fluorescence of riboflavin solution was quenched with the increase of silver nanoparticles concentration.The mechanism of the quenching of riboflavin aqueous...
Keywords:silver nanoparticles  riboflavin  absorption spectrum  fluorescence quenching  energy transfer  
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