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Tb(iii)-doped nanosheets as a fluorescent probe for the detection of dipicolinic acid
Wang, B; Xia, JF; Zhou, GH; Li, X; Dai, MT; Jiang, DY; Li, Q
2020-10-11
Source PublicationRSC ADVANCES
Issue61Pages:37500
SubtypeArticle
AbstractA new fluorescent probe based on terbium(iii)-doped nanosheets was designed for detecting low-levels of dipicolinic acid (DPA), a biomarker of bacterial spores. The ability to detect ultra-low concentrations of DPA is therefore of great significance. First, Tb(iii)-doped ytterbium hydroxide nanosheets were obtained by mechanical exfoliation from layered rare-earth hydroxide (LRH) materials. The morphology of the as-synthesized nanosheets was studied by transmission electron microscopy and atomic force microscopy. The Tb(iii)-doped nanosheets are demonstrated to be highly sensitive to DPA, which remarkably enhances Tb(iii) luminescence intensities at a wavelength of 544 nm. Furthermore, Tb(iii) emission increases linearly with DPA concentration. Selectivity studies were conducted by adding different competing aromatic ligands to the sensing solution; however, their fluorescence responses were observed to be negligibly small in comparison with that of DPA. Our findings provide a basis for the application of Tb(iii)-doped nanosheets for accurate, sensitive, and selective monitoring of DPA as a biomarker of anthrax.
DOI10.1039/c9ra09695g
WOS KeywordHIGHLY SENSITIVE DETECTION ; METAL-ORGANIC FRAMEWORKS ; ANTHRAX BIOMARKER ; CARBON DOTS ; IMMUNOASSAY ; COMBINATION ; COMPLEXES ; POLYMER ; WATER
Language英语
WOS Research AreaChemistry
PublisherROYAL SOC CHEMISTRY
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27695
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, B,Xia, JF,Zhou, GH,et al. Tb(iii)-doped nanosheets as a fluorescent probe for the detection of dipicolinic acid[J]. RSC ADVANCES,2020(61):37500.
APA Wang, B.,Xia, JF.,Zhou, GH.,Li, X.,Dai, MT.,...&Li, Q.(2020).Tb(iii)-doped nanosheets as a fluorescent probe for the detection of dipicolinic acid.RSC ADVANCES(61),37500.
MLA Wang, B,et al."Tb(iii)-doped nanosheets as a fluorescent probe for the detection of dipicolinic acid".RSC ADVANCES .61(2020):37500.
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