ICCAS OpenIR
Interaction of water-soluble tetrakis-(1-methyl-4-pyridiniyl)porphyrin and CdS naonoparticles
Tian, CH; He, XZ; Zhou, YL; Shen, T
2001-11-01
Source PublicationCHINESE JOURNAL OF CHEMISTRY
ISSN1001-604X
Volume19Issue:11Pages:1028-1032
AbstractThe interaction between positively charged porphyrin TMPyP(4) (tetrakis-(1-methyl-4-pyridiniyl)porphyrin) and negatively charged surface of colloidal CdS nanoparticles has been studied by absorption spectrum, fluorescence spectroscopy, and time-correlated single-photon-counting methods. Addition of CdS colloid to a TMPyP(4) solution leads to TMPyP(4) adsorption onto the surface of US colloid with an apparent association constant of 4643 L/mol. This adsorption results in distinct changes in absorption spectrum of TMPyP (4) and the quenching of its' fluorescence, but the biexponential fluorescence decay changes hardly. Nearly 90% of the fluorescence of 5 x 10(-6) mol/L TMPyP(4) can be quenched with 1.5 x 10(-4) mol/L CdS colloid. These spectral changes are attributed to the formation of a certain form complex TMPyP(4)-CdS.
KeywordWater-soluble Porphyrin Colloidal Cds Nanoparticles Fluorescence Quenching
Indexed BySCI
Language英语
WOS IDWOS:000173220900003
PublisherSCIENCE CHINA PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77812
Collection中国科学院化学研究所
Corresponding AuthorTian, CH
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Tian, CH,He, XZ,Zhou, YL,et al. Interaction of water-soluble tetrakis-(1-methyl-4-pyridiniyl)porphyrin and CdS naonoparticles[J]. CHINESE JOURNAL OF CHEMISTRY,2001,19(11):1028-1032.
APA Tian, CH,He, XZ,Zhou, YL,&Shen, T.(2001).Interaction of water-soluble tetrakis-(1-methyl-4-pyridiniyl)porphyrin and CdS naonoparticles.CHINESE JOURNAL OF CHEMISTRY,19(11),1028-1032.
MLA Tian, CH,et al."Interaction of water-soluble tetrakis-(1-methyl-4-pyridiniyl)porphyrin and CdS naonoparticles".CHINESE JOURNAL OF CHEMISTRY 19.11(2001):1028-1032.
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