Phosphorescent sensing of Cr3+ with protein-functionalized Mn-doped ZnS quantum dots
文献情報
Ting Zhao, Ya-Ni Xie, Lan Wu, Peng Wu
It was found that the phosphorescence from denatured bovine serum albumin (dBSA)-capped Mn-doped ZnS QDs could be selectively quenched by Cr3+, and a phosphorescent probe for Cr3+ was thus developed. Based on phosphorescence decay as well as calculations of the relative energies of QDs and Cr3+, the mechanism for phosphorescent quenching was preliminarily ascribed to electron transfer from photo-excited Mn-doped ZnS QDs to Cr3+. Under the optimal conditions, good linear Stern–Volmer quenching was obtained for Cr3+ in the range of 10 to 300 nM. The limit of detection of this phosphorescence probe (3 nM) was 1 to 2 orders of magnitude lower than those of previously reported nanosensors, owing to the effective elimination of background fluorescence and scattering from the sample matrix. The analytical potential of the proposed probe was evaluated through determination of Cr3+ in water samples, with spike–recoveries ranging from 95 to 106%.
関連文献
IF 6.367
The limits to biocatalysis: pushing the envelopeIF 6.222
Surface structure-dependent electrocatalytic reduction of CO2 to C1 products on SnO2 catalystsIF 6.367
Selective production of monocyclic aromatic hydrocarbons from ex situ catalytic fast pyrolysis of pine over the HZSM-5 catalyst with calcium formate as a hydrogen sourceIF 6.367
Life cycle assessment of power-to-gas with biogas as the carbon sourceIF 6.367
Enhanced power performance of an in situ sediment microbial fuel cell with steel-slag as the redox catalyst: I. electricity generationIF 6.367
From Douglas fir to renewable H2-enriched syngas via ex situ catalytic pyrolysis over metal nanoparticles–nanocellulose derived carbon catalystsIF 6.367
Insights into the mechanism of photosynthetic H2 evolution catalyzed by a heptacoordinate cobalt complexIF 6.367
Stabilizing synthetic DNA for long-term data storage with earth alkaline saltsIF 6.222
Non-aqueous neptunium and plutonium redox behaviour in THF – access to a rare Np(iii) synthetic precursorIF 6.222
掲載誌
Analyst
Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.
おすすめ化合物
![24449-39-6 - 2,2,2',2'-Tetramethyl-2H,2'H-5,5'-bibenzo[h]chromene-6,6'-diol](/structs/244/24449-39-6-3118.webp "24449-39-6 - 2,2,2',2'-Tetramethyl-2H,2'H-5,5'-bibenzo[h]chromene-6,6'-diol")
おすすめサプライヤー
Variati & Co.S.p.a.
フリードリヒ・テッソーン GmbH
Qu ímica Vaid， S. A. C. V. のKUKA Systems GmbHAylward Europe, GmbH
安徽贝伊克設備技術有限公司陕西省晨曦之光化学科技有限公司深セン優位昌浩科技股份有限公司
サーモラブ科学機器株式会社 Ltd.上海沪東鍋爐廠