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Liu W, Nie Y, Zhang M, Yan K, Wang M, Guo Y, Ma Q. A novel nanosponge-hydrogel system-based ECL biosensor for uric acid detection. LUMINESCENCE 2022; 37:1524-1531. [PMID: 35815832 DOI: 10.1002/bio.4326] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/24/2022] [Accepted: 07/05/2022] [Indexed: 11/10/2022]
Abstract
In this work, a highly efficient electrochemiluminescence (ECL) biosensor has been developed based on the nanosponge-hydrogel system for uric acid (UA) detection. Firstly, the nanosponge consists of PLGA nanoparticles immobilized with MoS2 QDs and urate oxidase (UAO). The remarkable loading capability of PLGA nanoparticles can load much biomolecules and QDs for the specific recognition of uric acid. Urate oxidase on the nanosponge can catalyze uric acid to generate H2 O2 in situ, which further trigger the ECL signal of MoS2 QDs. Furthermore, the biocompatible acrylamide-based hydrogel not only effectively retains the functionalities of the chimeric nanosponge-hydrogel, but also provides the structural integrity and engineering flexibility on the electrode in the ECL sensing application. Meanwhile, there are plenty of ester groups and amide bonds in the nanosponge-hydrogel structure. So, much electron can be excited due to a large number of lone electron pairs on oxygen and nitrogen atom in the ECL process. It results in 7-fold ECL enhancement of MoS2 QDs. Finally, the nanosponge-hydrogel structure-based ECL biosensor has been successfully used in actual clinical serum assays. It shows a good analytical performance for the uric acid detection (100 ~ 500 μmol/L) with a detection limit of 20 μmol/L.
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Affiliation(s)
- Wanqing Liu
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, China.,National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, China
| | - Yixin Nie
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, China
| | - Mengmeng Zhang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, China.,National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, China
| | - Kefan Yan
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, China.,National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, China
| | - Mai Wang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, China.,National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, China
| | - Yupeng Guo
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, China.,National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, China
| | - Qiang Ma
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, China.,National Chemistry Experimental Teaching Demonstration Center, Jilin University, Changchun, Jilin, China
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A novel ratiometric fluorescence nanoprobe for sensitive determination of uric acid based on CD@ZIF-CuNC nanocomposites. Mikrochim Acta 2021; 188:259. [PMID: 34268632 DOI: 10.1007/s00604-021-04914-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 06/23/2021] [Indexed: 02/01/2023]
Abstract
A novel ratiometric fluorescence nanoprobe based on carbon dots (CDs) and Cu nanoclusters (CuNCs) was designed for the label-free determination of uric acid (UA). The metal-organic framework (MOF) encapsulated CuNCs (ZIF-CuNC), and nitrogen-doped CDs can self-assemble into well-defined spherical nanocomposites (CD@ZIF-CuNC) due to physical adsorption. Under the excitation wavelength of 360 nm, the CD@ZIF-CuNC nanocomposites exhibit two evident intrinsic emissions peaked at 460 nm (CDs) and 620 nm (ZIF-CuNC), respectively. In the presence of H2O2, the fluorescence of CD@ZIF-CuNC at 620 nm is quenched remarkably within 1 min, while little effect on the emission at 460 nm is observed. Therefore, taking the fluorescence at 620 nm as the report signal and 460 nm as the reference signal, ratiometric quantitative determination of H2O2 was achieved with a linear range of 1-100 μM and a detection limit of 0.30 μM. The CD@ZIF-CuNC nanoprobe was successfully applied to the determination of UA that is catalyzed by uricase to produce H2O2, obtaining the linear range of 1-30 μM and the detection limit of 0.33 μM. Eventually, this strategy has been successfully applied to the determination of UA in human urine samples. A novel and convenient CDs@ZIF-CuNCs-based nanoplatform was constructed for sensitive ratiometric fluorescence determination of UA.
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Sinha GN, Subramanyam P, Sivaramakrishna V, Subrahmanyam C. Electrodeposited copper bismuth oxide as a low-cost, non-enzymatic electrochemical sensor for sensitive detection of uric acid and hydrogen peroxide. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108627] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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A ’’naked-eye’’ colorimetric and ratiometric fluorescence probe for uric acid based on Ti3C2 MXene quantum dots. Anal Chim Acta 2020; 1103:134-142. [DOI: 10.1016/j.aca.2019.12.069] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/16/2019] [Accepted: 12/18/2019] [Indexed: 12/11/2022]
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Ghanbari K, Bonyadi S. Modified Glassy Carbon Electrode with Polypyrrole Nanocomposite for the Simultaneous Determination of Ascorbic acid, Dopamine, Uric acid, and Folic Acid. J ELECTROCHEM SCI TE 2020. [DOI: 10.33961/jecst.2019.00472] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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CHEN CX, NI PJ, JIANG YY, ZHAO ZL, LU YZ. Dual-mode Detection of Dopamine Based on Enhanced Fluorescent and Colorimetric Signals of Fe 3+ -H 2 O 2 - o -Phenylenediamine System. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(18)61103-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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