Application of functionalized ZnS nanoparticles to determinate uracil and thymine as a fluorescence probe

Autor:	Dawang Yu, Ruixiang Bian, Yaping Ding, Meili Yu, Li Li
Rok vydání:	2009
Předmět:	chemistry.chemical_compound Photoluminescence Chemistry Transmission electron microscopy Nanoparticle General Materials Science Uracil Condensed Matter Physics Spectroscopy Photochemistry Fluorescence Diffractometer Thymine
Zdroj:	Materials Chemistry and Physics. 113:905-908
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2008.08.050
Popis:	ZnS nanoparticles were prepared by hydrothermal method and modified with mercaptoacetic acid in this paper. The functionalized nanoparticles were characterized using transmission electron microscopy (TEM), X-ray diffractometer (XRD) and photoluminescence spectroscopy. They were used as fluorescence probes in the determination of uracil and thymine. Under the optimum conditions, the fluorescence of functionalized ZnS nanoparticles was quenched by uracil and thymine, respectively. The responses are linearly proportional to the concentrations of uracil and thymine both between 0.8 × 10−5 and 9.6 × 10−5 mol L−1and the limits of detection are 0.9 × 10−6 and 0.4 × 10−5 mol L−1 for uracil and thymine, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::33438ff66ac19ec3d497236fa1837490 https://doi.org/10.1016/j.matchemphys.2008.08.050 Zobrazit plný text záznamu Full Text from ScienceDirect