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HERO ID
4388644
Reference Type
Journal Article
Title
One-step synthesis of water-soluble and highly fluorescent MoS2 quantum dots for detection of hydrogen peroxide and glucose
Author(s)
Wang, X; Wu, Q; Jiang, K; Wang, C; Zhang, Chi
Year
2017
Is Peer Reviewed?
1
Journal
Sensors and Actuators B: Chemical
ISSN:
0925-4005
EISSN:
1873-3077
Volume
252
Page Numbers
183-190
DOI
10.1016/j.snb.2017.05.177
Web of Science Id
WOS:000408277500023
Abstract
Transition metal chalcogenides, especially molybdenum disulfide, have recently got wide attention from researchers because of their unique intrinsic characteristics. However, until now, few literatures have reported the photoluminescent MoS2 materials and their applications. In this work, we reported a bottom up strategy to synthesize water-soluble molybdenum disulfide quantum dots (MoS2 QDs) through a facile hydrothermal route using sodium molybdate and glutathione as Mo and S sources. The obtained MoS2 QDs show blue emission with a high quantum yield (similar to 10.3%) and robust dispersibility and storage stability optical property in aqueous solution. During the experiment, we found that in the presence of hydrogen peroxide (H2O2), the fluorescence of MoS2 QDs is quenched due to the interaction between H2O2 and MoS2 QDs. Simultaneously, glucose oxidase catalyzes the oxidation of glucose to produce gluconic acid and H2O2, so we can use this probe to detect glucose. By reason of the high zymolyte specificity of glucose oxidase, the detection of glucose has good selectivity and sensitivity with a detection limit of 5.16 mu M. Finally, the method is successfully applied for detection of glucose in fetal bovine serum samples. (C) 2017 Published by Elsevier B.V.
Keywords
Molybdenum disulfide quantum dots; Water-soluble; Highly fluorescence; Hydrogen peroxide; Glucose
Tags
IRIS
•
Molybdenum
Litsearch 2018
WOS
OPPT
•
Gluconates
Literature Search
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WOS (private)
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