Chromium(III)-doped carbon dots: fluorometric detection of p-nitrophenol via inner filter effect quenching

被引：0
作者：
Chunmei Li
Youkun Zheng
Hongwei Ding
Hui Jiang
Xuemei Wang
机构：
[1] Southeast University,State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering
来源：
Microchimica Acta | 2019年 / 186卷
关键词：
Cr(III)-doped carbon dots; Fluorescence; Tris(2,4-pentanedionato)chromium(III); Urine; Inner filter effect;
D O I：
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摘要：
We report on the synthesis of chromium(III)-doped carbon dots (Cr-CDs) by one-pot hydrothermal pathway using tris(2, 4-pentanedionato) chromium(III) and polyethyleneimine as precursors. The Cr-CDs have a graphene-analogous structure and display blue-green fluorescence with excitation/emission maxima at 350/466 nm, a 20% quantum yield, and excitation-independent emissions. Their cytotoxicity is low. The Cr-CDs were used as a fluorescence probe for p-nitrophenol (p-NP). The assay has a linear working range that extends from 0.8~150 μM and a 0.27 μM lower detection limit. The assay was applied to the detecting of p-NP in spiked human urine, and conceivably may be extended to a method for the determination of parathion.
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  • [1] Jiang K(2015)Bright-yellow-emissive N-doped carbon dots: preparation, cellular imaging, and bifunctional sensing ACS Appl Mater Interfaces 7 23231-23238
  • [2] Sun S(2016)Facile and sensitive fluorescence sensing of alkaline phosphatase activity with photoluminescent carbon dots based on inner filter effect Anal Chem 88 2720-2726
  • [3] Zhang L(2016)A sensitive and low toxicity electrochemical sensor for 2,4-dichlorophenol based on the nanocomposite of carbon dots, hexadecyltrimethyl ammonium bromide and chitosan Sensors Actuators B Chem 224 241-247
  • [4] Wang Y(2016)Charge-convertible carbon dots for imaging-guided drug delivery with enhanced in vivo cancer therapeutic efficiency ACS Nano 10 4410-4420
  • [5] Cai C(2014)Carbon dots with continuously tunable full-color emission and their application in ratiometric pH sensing Chem Mater 26 3104-3112
  • [6] Lin H(2016)Programmed bacteria death induced by carbon dots with different surface charge Small 12 4713-4718
  • [7] Li G(2015)Glowing graphene quantum dots and carbon dots: properties, syntheses, and biological applications Small 11 1620-1636
  • [8] Fu H(2016)Carbon dots doped with heteroatoms for fluorescent bioimaging: a review Microchim Acta 184 343-368
  • [9] Chen X(2018)Immobilization and characterization of Fe(0) catalyst on NaOH-treated coal fly ash for catalytic reduction of p-nitrophenol Chemosphere 212 1020-1029
  • [10] Gong P(2002)-nitrophenol degradation by activated sludge attached on nonwovens Water Res 36 1135-1142
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