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Bekdeşer B, Apak R. Colorimetric Sensing of Antioxidant Capacity via Auric Acid Reduction Coupled to ABTS Oxidation. ACS OMEGA 2024; 9:11738-11746. [PMID: 38497014 PMCID: PMC10938435 DOI: 10.1021/acsomega.3c09134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/13/2024] [Accepted: 02/20/2024] [Indexed: 03/19/2024]
Abstract
In this study, a simple and sensitive colorimetric assay has been developed for total antioxidant capacity measurement. The assay is based on the absorption measurement of the bluish-green oxidized product (ABTS·+) formed as a result of the oxidation reaction of the chromogenic reagent ABTS (2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) with gold(III). However, in the presence of antioxidants, the ABTS oxidation process is effectively suppressed due to the reduction of gold(III) ions to the zerovalent state forming gold nanoparticles (AuNPs). Relatively lighter colors and a significant decrease in absorbance are observed depending on the total antioxidant capacity. Taking advantage of this situation, qualitative and quantitative total antioxidant capacity (TAC) measurements, with the naked eye and UV-vis spectroscopy, respectively, could be successfully performed. The assay is named "auric reducing antioxidant capacity" (AuRAC) because the gold(III) ion-reducing ability of antioxidants is measured. The AuRAC assay was applied to dietary polyphenols, vitamin C, thiol-type antioxidants, and their synthetic mixtures. Trolox equivalent antioxidant capacity (TEAC) values obtained with the AuRAC assay were found to be compatible with those of the reference CUPRAC (cupric reducing antioxidant capacity) assay. The AuRAC assay was validated through linearity, additivity, precision, and recovery, demonstrating that the assay is reliable and robust. Compared to the simple TAC assays in the literature based on AuNP formation with subsequent surface plasmon resonance (SPR) absorbance measurement, this indirect assay has a smoother linear range starting from lower antioxidant concentrations. This method displays much higher molar absorption coefficients for antioxidant compounds than other conventional single electron transfer (SET) assays because 3-e- reduction of trivalent gold (i.e., Au(III) → Au(0)) produces three chromophore cation radicals (ABTS·+) of the assay reagent. The sensor has been successfully applied to complex matrices, such as tea infusions and pharmaceutical samples. The AuRAC assay stands out with its high molar absorptivity connected to enhanced sensitivity as well as its potential to convert into a paper-based colorimetric sensor.
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Affiliation(s)
- Burcu Bekdeşer
- Department
of Chemistry, Faculty of Engineering, Istanbul
University-Cerrahpaşa, Avcilar, 34320 Istanbul, Turkey
| | - Reşat Apak
- Department
of Chemistry, Faculty of Engineering, Istanbul
University-Cerrahpaşa, Avcilar, 34320 Istanbul, Turkey
- Turkish
Academy of Sciences (TUBA), Çankaya, 06690 Ankara, Turkey
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2
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He Z, Zhang J, Liu M, Meng Y. Polyvalent aptamer scaffold coordinating light-responsive oxidase-like nanozyme for sensitive detection of zearalenone. Food Chem 2024; 431:136908. [PMID: 37573743 DOI: 10.1016/j.foodchem.2023.136908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/19/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023]
Abstract
An efficient aptasensor was developed for the colorimetric determination of zearalenone (ZEN) based on polyvalent aptamer scaffold and light-responsive oxidase-like nanozyme. The sensitivity and efficiency of the development method were significantly improved owing to rich aptamers and signal labels (3, 4-dihydroxybenzoic acid, PCA) packed in the scaffold. The scaffold integrated functions of target recognition, surface immobilization and signal transduction. The photoresponsive nanoenzyme of TiO2-PCA was formed by PCA coordinated with Ti (IV) on the surface of TiO2. TiO2-PCA catalyzed dissolved oxygen rather than H2O2 to generate colorimetric signal by stimulating the chromogenic substrate, which made the assay greener and safer. The detection limit of colorimetric mode was 0.0087 ng/mL and the satisfactory recoveries 92.00 %-111.00 % were achieved in spiked food samples. This strategy opens new horizons for sensitive detection of small molecule hazards and promises to be a powerful tool for safeguarding food safety.
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Affiliation(s)
- Ziyang He
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Jinxin Zhang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Mei Liu
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China; The Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Xi'an 710119, China.
| | - Yonghong Meng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China; The Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Xi'an 710119, China
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3
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Controllable bisubstrate multi-colorimetric assay based on peroxidase-like nanozyme and complementary colorharmonic principle for semi-quantitative detection of H2O2 with the naked eye. Mikrochim Acta 2022; 189:81. [DOI: 10.1007/s00604-022-05169-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/27/2021] [Indexed: 11/26/2022]
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4
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Nian Y, Luo L, Zhu W, Yang C, Zhang L, Li M, Zhang W, Wang J. Does the intrinsic photocontrollable oxidase-mimicking activity of 2-aminoterephthalic acid dominate the activity of metal–organic frameworks? Inorg Chem Front 2021. [DOI: 10.1039/d1qi00319d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The ligand ATA possesses intrinsic photocontrolled oxidase-like activity, showing promise in designing ATA-MOF with photoresponsive enzyme-like activity like Al-ATA and establishing the colorimetric strategy for Cu2+ detection.
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Affiliation(s)
- Ying Nian
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Linpin Luo
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Wenxin Zhu
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Chengyuan Yang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Liang Zhang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Min Li
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Wentao Zhang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Jianlong Wang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
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5
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Pt deposited on magnetic CoFe2O4 nanoparticles: Double enzyme-like activity, catalytic mechanism and fast colorimetric sensing of dopamine. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105264] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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6
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Silver nanoparticles-decorated reduced graphene oxide: A novel peroxidase-like activity nanomaterial for development of a colorimetric glucose biosensor. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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7
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Colorimetric sensor array for accurate detection and identification of antioxidants based on metal ions as sensor receptors. Talanta 2020; 215:120935. [PMID: 32312471 DOI: 10.1016/j.talanta.2020.120935] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/14/2019] [Accepted: 03/13/2020] [Indexed: 11/20/2022]
Abstract
There is an ongoing need to develop high-performance sensing strategy for detecting and discriminating antioxidants, primarily because of their role in medical diagnosis and food. In this regard, visual sensor arrays have been a subject of intensive research for such applications. To this end, we propose a colorimetric sensor array for accurate detection and identification of antioxidants, which is based on the reactions between 3,3',5,5'-tetramethylbenzidine (TMB) and metal ions as sensing receptors and the interactions between antioxidants and oxidized TMB (oxTMB). Different target antioxidants displayed diverse reduction abilities toward the oxTMB, creating distinct colorimetric response patterns. The combination of colorimetric response variation at color and absorbance at 652 nm enables the sensor array to provide a unique fingerprint pattern to each antioxidant. Linear discriminant analysis (LDA) and centroid diagrams show that the sensor array can well detect and discriminate the eight tested antioxidants, including lipoic acid (LIA), cysteine (Cys), tannin (TA), ascorbic acid (AA), glutathione (GSH), Uric Acid (UA), glycine (Gly), and dopamine (DA), with a high sensitivity in the range of nanomolar concentrations.
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8
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Amourizi F, Dashtian K, Ghaedi M. Developing a new colorimetric bioassay for iodide determination based on gold supported iridium peroxidase catalysts. NEW J CHEM 2020. [DOI: 10.1039/c9nj06310b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A schematic sketch of the colorimetric bioassay for iodide determination based on gold supported iridium peroxidase catalysts.
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9
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Liu L, Jiang H, Wang X. Bivalent Metal Ions Tethered Fluorescent Gold Nanoparticles as a Reusable Peroxidase Mimic Nanozyme. JOURNAL OF ANALYSIS AND TESTING 2019. [DOI: 10.1007/s41664-019-00109-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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10
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Huang L, Cao YJ, Sun XY, Liu B, Shen JS. Diverse applications of TMB-based sensing probes. Org Biomol Chem 2019; 16:5667-5676. [PMID: 30043797 DOI: 10.1039/c8ob01364k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Extending the research on 3,3',5,5'-tetramethylbenzidine (TMB) and its derivatives in analytical chemistry is important, considering that TMB is widely used as an enzyme catalytic substrate. In this work, two TMB derivatives, TMBS and TMBB, were synthesized via a facile and one-step condensation reaction between the -NH2 group of TMB and the -CHO group of salicylaldehyde or benzaldehyde. Because at low pH the two Schiff base compounds can release TMB which can emit strong fluorescence, the probes could show dual-modal signal responses, fluorescence and UV-vis absorption, towards the pH. Practical applications of pH sensing in Chinese rice vinegar and lemon juice samples were successfully demonstrated. On the basis of these findings, a catalytic chromogenic reaction was developed to monitor the pH with the naked eye, too. Furthermore, considering the chemical equilibrium reaction between CO2 and H2O and that glucose oxidase (GOD) can catalyse the dehydrogenation and oxidation reaction of β-d-glucose to produce gluconic acid, both of which can result in lowering the pH values of the two Schiff base systems, highly sensitive and selective dual-modal sensing systems for detecting CO2 and β-d-glucose have also been successfully established. Therefore, the two synthesized TMB derivatives can demonstrate their robust application potential.
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Affiliation(s)
- Li Huang
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China.
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11
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Megarajan S, Kamlekar RK, Kumar PS, Anbazhagan V. Rapid and selective colorimetric sensing of Au3+ions based on galvanic displacement of silver nanoparticles. NEW J CHEM 2019. [DOI: 10.1039/c9nj04289j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Au3+decolorizes AgNPs through a galvanic displacement reaction.
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Affiliation(s)
- Sengan Megarajan
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur – 613 401
- India
| | | | - P. Suresh Kumar
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur – 613 401
- India
| | - Veerappan Anbazhagan
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur – 613 401
- India
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12
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Xia W, Zhang P, Fu W, Hu L, Wang Y. Aggregation/dispersion-mediated peroxidase-like activity of MoS2 quantum dots for colorimetric pyrophosphate detection. Chem Commun (Camb) 2019; 55:2039-2042. [DOI: 10.1039/c8cc09799b] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Peroxidase-like activity of MoS2 quantum dots can be manipulated by aggregation/dispersion in the presence of Fe3+ or a mix of Fe3+ and pyrophosphate (PPi). Based on this finding, a simple and reliable method for colorimetric PPi detection is developed.
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Affiliation(s)
- Wanqiang Xia
- Chongqing Key Laboratory of Green Synthesis and Applications, and College of Chemistry
- Chongqing Normal University
- Chongqing 401331
- China
| | - Pu Zhang
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
- China
| | - Wensheng Fu
- Chongqing Key Laboratory of Green Synthesis and Applications, and College of Chemistry
- Chongqing Normal University
- Chongqing 401331
- China
| | - Lianzhe Hu
- Chongqing Key Laboratory of Green Synthesis and Applications, and College of Chemistry
- Chongqing Normal University
- Chongqing 401331
- China
| | - Yi Wang
- Chongqing Key Laboratory of Green Synthesis and Applications, and College of Chemistry
- Chongqing Normal University
- Chongqing 401331
- China
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13
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Liu H, Rong J, Shen G, Song Y, Gu W, Liu X. A fluorescent probe for sequential sensing of MnO4− and Cr2O72− ions in aqueous medium based on a UCNS/TMB nanosystem. Dalton Trans 2019; 48:4168-4175. [DOI: 10.1039/c9dt00360f] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Distinguishable and sequential detection of MnO4− and Cr2O72− was realized by the reactions above and IFE between UCNS and oxTMB.
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Affiliation(s)
- Haiquan Liu
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
- Collaborative Innovation Center of Chemical Science and Engineering
| | - Jianing Rong
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Guoqiong Shen
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Yao Song
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Wen Gu
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
- Collaborative Innovation Center of Chemical Science and Engineering
| | - Xin Liu
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
- Collaborative Innovation Center of Chemical Science and Engineering
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14
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A simple and rapid colorimetric probe for uric acid detection based on redox reaction of 3,3ʹ,5,5ʹ-tetramethylbenzidine with HAuCl4. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.07.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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15
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Liu L, Sun C, Yang J, Shi Y, Long Y, Zheng H. Fluorescein as a Visible-Light-Induced Oxidase Mimic for Signal-Amplified Colorimetric Assay of Carboxylesterase by an Enzymatic Cascade Reaction. Chemistry 2018; 24:6148-6154. [DOI: 10.1002/chem.201705980] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Li Liu
- The Key Laboratory on Luminescent and Real-Time Analytical Chemistry Ministry of Education, College of Chemistry andChemical Engineering; Southwest University; Chongqing 400715 P.R. China
- Department College of Chemistry and Environmental Science; Qujing Normal University; Qujing 655011 P.R. China
| | - Chaoqun Sun
- The Key Laboratory on Luminescent and Real-Time Analytical Chemistry Ministry of Education, College of Chemistry andChemical Engineering; Southwest University; Chongqing 400715 P.R. China
| | - Juan Yang
- The Key Laboratory on Luminescent and Real-Time Analytical Chemistry Ministry of Education, College of Chemistry andChemical Engineering; Southwest University; Chongqing 400715 P.R. China
| | - Ying Shi
- The Key Laboratory on Luminescent and Real-Time Analytical Chemistry Ministry of Education, College of Chemistry andChemical Engineering; Southwest University; Chongqing 400715 P.R. China
| | - Yijuan Long
- The Key Laboratory on Luminescent and Real-Time Analytical Chemistry Ministry of Education, College of Chemistry andChemical Engineering; Southwest University; Chongqing 400715 P.R. China
| | - Huzhi Zheng
- The Key Laboratory on Luminescent and Real-Time Analytical Chemistry Ministry of Education, College of Chemistry andChemical Engineering; Southwest University; Chongqing 400715 P.R. China
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16
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Ozdemir Olgun FA, Üzer A, Ozturk BD, Apak R. A novel cerium oxide nanoparticles-based colorimetric sensor using tetramethyl benzidine reagent for antioxidant activity assay. Talanta 2018; 182:55-61. [PMID: 29501192 DOI: 10.1016/j.talanta.2018.01.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/10/2018] [Accepted: 01/17/2018] [Indexed: 10/18/2022]
Abstract
Antioxidant activity (AOA) assays using nanotechnology are recently developed utilizing nanoparticles of transition metal oxides, especially nanoceria that can switch between trivalent and tetravalent oxidation states of cerium. Cerium oxide nanoparticles (CeO-NPs) may act as both an oxidant and an antioxidant, depending on the preparation method and particle size. A novel colorimetric sensor for AOA assay is proposed with the use of poly(acrylic acid) sodium salt (PAANa)-coated CeO-NPs. PAANa-coated CeO-NPs oxidized tetramethyl benzidine (TMB), a peroxidase substrate, in a slightly acidic solution at pH 4.0 to a blue charge-transfer complex. Antioxidants decreased the color intensity of the nanoceria suspension, and were indirectly determined by absorbance difference. Detection limits, linearity, additivity and precision were calculated, e.g., quercetin quantification with the proposed assay showed a detection limit of 8.25 × 10-9 mol L-1. The trolox equivalent antioxidant capacities of hydrophilic and lipophilic antioxidants were compatible with those of conventional antioxidant assays. Potential interferents such as glucose, citric acid, mannitol, sorbitol and benzoic acid did not adversely affect AOA determination. The developed sensor is more sensitive and selective than similar colorimetric sensors relying on the intrinsic color change of nanoceria. The measurement wavelength is sufficiently red-shifted, preventing possible interferences from plant pigments.
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Affiliation(s)
- F Ayca Ozdemir Olgun
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
| | - Ayşem Üzer
- Department of Chemistry, Faculty of Engineering, Istanbul University, 34320 Avcilar, Istanbul, Turkey
| | - Birsen Demirata Ozturk
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
| | - Reşat Apak
- Department of Chemistry, Faculty of Engineering, Istanbul University, 34320 Avcilar, Istanbul, Turkey; Turkish Academy of Sciences (TUBA), Piyade Sokak No. 27, 06690 Çankaya, Ankara, Turkey.
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17
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Singh S, Mitra K, Shukla A, Singh R, Gundampati RK, Misra N, Maiti P, Ray B. Brominated Graphene as Mimetic Peroxidase for Sulfide Ion Recognition. Anal Chem 2016; 89:783-791. [DOI: 10.1021/acs.analchem.6b03535] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shikha Singh
- Department
of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Kheyanath Mitra
- Department
of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Aparna Shukla
- School
of Material Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Rajshree Singh
- Department
of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Ravi Kumar Gundampati
- Molecular
Biology Unit, Institute of Medical Science, Banaras Hindu University, Varanasi 221005, India
| | - Nira Misra
- School
of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Pralay Maiti
- School
of Material Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Biswajit Ray
- Department
of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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18
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Chai DF, Ma Z, Qiu Y, Lv YG, Liu H, Song CY, Gao GG. Oxidase-like mimic of Ag@Ag3PO4 microcubes as a smart probe for ultrasensitive and selective Hg(2+) detection. Dalton Trans 2016; 45:3048-54. [PMID: 26763181 DOI: 10.1039/c5dt04192a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An oxidase-like mimic system based on facilely synthesized Ag@Ag3PO4 microcubes (Ag@Ag3PO4MCs) was designed and utilized to detect mercury ions with high selectivity and ultrasensitivity. Ag@Ag3PO4MCs with an average size of ca. 1.6 μm were synthesized by the reaction of [Ag(NH3)2](+) complex and Na2HPO4 and subsequent photoreduction under ultraviolet light. The as-prepared Ag@Ag3PO4MCs can effectively catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) and o-phenylenediamine (OPD) in the presence of dissolved oxygen in slightly acidic solution, exhibiting oxidase-like activities rather than peroxidase-like activity. Interestingly, the introduction of Ag nanoparticles (AgNPs) on the surfaces of Ag3PO4MCs can dramatically enhance the oxidase-like activities due to a synergistic effect between AgNPs and Ag3PO4MCs, as evidenced by the faster oxidation speed of TMB and OPD than that of native Ag3PO4MCs in the presence of dissolved oxygen. The enzyme kinetics can be well-explained by the Michaelis-Menten equation. As "poisoning" inhibitor, Hg(2+) ions can inhibit the enzyme reaction catalyzed by Ag3PO4MCs or Ag@Ag3PO4MCs. On the basis of this effect, a colorimetric Hg(2+) sensor was developed by the enzyme inhibition reaction of Ag3PO4MCs or Ag@Ag3PO4MCs. The excellent specific interaction of Hg-Ag or Hg(2+)-Ag(+) provides high selectivity for Hg(2+) over interfering metal ions. Meanwhile, the sensitivity of this sensor to Hg(2+) is extremely excellent with a limit of detection as low as 0.253 nM for Ag@Ag3PO4MCs. Considering the advantages of low detection limit, low cost, facile preparation, and visualization, the colorimetric Ag@Ag3PO4MCs sensor shows high promise for the testing of Hg(2+) in water samples.
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Affiliation(s)
- Dong-Feng Chai
- Department of Chemistry, College of Pharmacy, Jiamusi University, Jiamusi 154004, China.
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19
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Colorimetric determination of melamine based on the reversal of the mercury(II) induced inhibition of the light-triggered oxidase-like activity of gold nanoclusters. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1669-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Mirazizi F, Bahrami A, Haghbeen K, Shahbani Zahiri H, Bakavoli M, Legge RL. Rapid and direct spectrophotometric method for kinetics studies and routine assay of peroxidase based on aniline diazo substrates. J Enzyme Inhib Med Chem 2015; 31:1162-9. [PMID: 26526616 DOI: 10.3109/14756366.2015.1103234] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Peroxidases are ubiquitous enzymes that play an important role in living organisms. Current spectrophotometrically based peroxidase assay methods are based on the production of chromophoric substances at the end of the enzymatic reaction. The ambiguity regarding the formation and identity of the final chromophoric product and its possible reactions with other molecules have raised concerns about the accuracy of these methods. This can be of serious concern in inhibition studies. A novel spectrophotometric assay for peroxidase, based on direct measurement of a soluble aniline diazo substrate, is introduced. In addition to the routine assays, this method can be used in comprehensive kinetics studies. 4-[(4-Sulfophenyl)azo]aniline (λmax = 390 nm, ɛ = 32 880 M(-1) cm(-1) at pH 4.5 to 9) was introduced for routine assay of peroxidase. This compound is commercially available and is indexed as a food dye. Using this method, a detection limit of 0.05 nmol mL(-1) was achieved for peroxidase.
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Affiliation(s)
- Fatemeh Mirazizi
- a Department of Chemistry , Islamic Azad University of Mashhad , Mashhad , The Islamic Republic of Iran
| | - Azita Bahrami
- b National Institute for Genetic Engineering and Biotechnology , Tehran , The Islamic Republic of Iran
| | - Kamahldin Haghbeen
- c Biochemistry and Biophysics, National Institute for Genetic Engineering and Biotechnology , Tehran , The Islamic Republic of Iran
| | - Hossein Shahbani Zahiri
- d National Institute for Genetic Engineering and Biotechnology , Tehran , The Islamic Republic of Iran
| | - Mehdi Bakavoli
- e Department of Chemistry , Ferdowsi University of Mashhad , Mashhad , The Islamic Republic of Iran , and
| | - Raymond L Legge
- f Department of Chemical Engineering , University of Waterloo , Waterloo , Ontario , Canada
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21
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Jin LY, Dong YM, Wu XM, Cao GX, Wang GL. Versatile and Amplified Biosensing through Enzymatic Cascade Reaction by Coupling Alkaline Phosphatase in Situ Generation of Photoresponsive Nanozyme. Anal Chem 2015; 87:10429-36. [PMID: 26419907 DOI: 10.1021/acs.analchem.5b02728] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The alkaline phosphatase (ALP) biocatalysis followed by the in situ enzymatic generation of a visible light responsive nanozyme is coupled to elucidate a novel amplification strategy by enzymatic cascade reaction for versatile biosensing. The enzymatic hydrolysis of o-phosphonoxyphenol (OPP) to catechol (CA) by ALP is allowed to coordinate on the surface of TiO2 nanoparticles (NPs) due to the specificity and high affinity of enediol ligands to Ti(IV). Upon the stimuli by CA generated from ALP, the inert TiO2 NPs is activated, which demonstrates highly efficient oxidase mimicking activity for catalyzing the oxidation of the typical substrate of 3,3',5,5'-tetramethylbenzidine (TMB) under visible light (λ ≥ 400 nm) irradiation utilizing dissolved oxygen as an electron acceptor. On the basis of the cascade reaction of ALP and the nanozyme of CA coordinated TiO2 (TiO2-CA) NPs, we design exquisitely colorimetric biosensors for probing ALP activity and its inhibitor of 2, 4-dichlorophenoxyacetic acid (2,4-DA). Quantitative probing of ALP activity in a wide linear range from 0.01 to 150 U/L with the detection limit of 0.002 U/L is realized, which endows the methodology with sufficiently high sensitivity for potentially practical applications in real samples of human serum (ALP level of 40-190 U/L for adults). In addition, a novel immunoassay protocol by taking mouse IgG as an example is validated using the ALP/nanozyme cascade amplification reaction as the signal transducer. A low detection limit of 2.0 pg/mL is attained for mouse IgG, which is 4500-fold lower than that of the standard enzyme-linked immuno-sorbent assay (ELISA) kit. Although only mouse IgG is used as a proof-of-concept in our experiment, we believe that this approach is generalizable to be readily extended to other ELISA systems. This methodology opens a new horizon for amplified and versatile biosensing including probing ALP activity and following ALP-based ELISA immunoassays.
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Affiliation(s)
- Lu-Yi Jin
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University , Wuxi 214122, Jiangsu, China
| | - Yu-Ming Dong
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University , Wuxi 214122, Jiangsu, China
| | - Xiu-Ming Wu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University , Wuxi 214122, Jiangsu, China
| | - Gen-Xia Cao
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University , Wuxi 214122, Jiangsu, China
| | - Guang-Li Wang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University , Wuxi 214122, Jiangsu, China.,State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University , Nanjing 210093, Jiangsu, China
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Wei X, Jang G, Roper DK. Spectrophotometric determination of tin(II) by redox reaction using 3,3′,5,5′-tetramethylbenzidine dihydrochloride and N-bromosuccinimide. JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1134/s1061934815050159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Intrinsic enzyme mimicking activity of gold nanoclusters upon visible light triggering and its application for colorimetric trypsin detection. Biosens Bioelectron 2015; 64:523-9. [DOI: 10.1016/j.bios.2014.09.071] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/12/2014] [Accepted: 09/25/2014] [Indexed: 01/14/2023]
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24
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Wang GL, Xu XF, Qiu L, Dong YM, Li ZJ, Zhang C. Dual responsive enzyme mimicking activity of AgX (X=Cl, Br, I) nanoparticles and its application for cancer cell detection. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6434-6442. [PMID: 24754894 DOI: 10.1021/am501830v] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Chitosan (CS) modified silver halide (AgX, X=Cl, Br, I) (CS-AgX) nanoparticles (NPs) were found to possess dual responsive enzyme mimetic activities. In the presence of H2O2, they were able to oxidize various colorimertic dyes, namely, peroxidase-like activity. Upon photoactivation, CS-AgX NPs could also oxidize the typical substrates in the absence of H2O2. Taking CS-AgI as an example, it was found that the photostimulated enzyme mimetics of CS-AgI NPs showed several unprecedented advantages over natural peroxidase or other existing alternatives based on nanomaterials, such as excellent enzyme-like activity over a broad pH range (3.0-7.0), the independence of hydrogen peroxide on activity, the easily regulated activity by light irradiation, and the good reutilization without significant loss of catalytic activity. The mechanism of the dual responsive enzyme-like activity of CS-AgI was investigated. On the basis of these findings, the photoactivated CS-AgI was designed to develop a facile, cheap, rapid, and highly sensitive colorimetric assay to detect cancer cells. The detection limit of the method for MDA-MB-231 was estimated to be as low as 100 cells, which was much lower than that reported by the method using peroxidase mimetics based on nanomaterials. We believe that CS-AgX NPs with dual responsive enzyme-mimicking activity, especially the excellent photostimulated enzyme-like activity, may find widely potential applications in biosensors.
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Affiliation(s)
- Guang-Li Wang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University , Wuxi 214122, P. R. China
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Wang X, Yang Y, Li L, Sun M, Yin H, Qin W. A Polymeric Liquid Membrane Electrode Responsive to 3,3′,5,5′-Tetramethylbenzidine Oxidation for Sensitive Peroxidase/Peroxidase Mimetic-Based Potentiometric Biosensing. Anal Chem 2014; 86:4416-22. [DOI: 10.1021/ac500281r] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xuewei Wang
- Key
Laboratory of Coastal Environmental Processes and Ecological Remediation,
Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of
Sciences(CAS); Shandong Provincial Key Laboratory of Coastal Environmental
Processes, YICCAS, Yantai, Shandong 264003, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yangang Yang
- College
of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264003, People’s Republic of China
| | - Long Li
- Key
Laboratory of Coastal Environmental Processes and Ecological Remediation,
Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of
Sciences(CAS); Shandong Provincial Key Laboratory of Coastal Environmental
Processes, YICCAS, Yantai, Shandong 264003, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Mingshuang Sun
- College
of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264003, People’s Republic of China
| | - Haogen Yin
- College
of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264003, People’s Republic of China
| | - Wei Qin
- Key
Laboratory of Coastal Environmental Processes and Ecological Remediation,
Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of
Sciences(CAS); Shandong Provincial Key Laboratory of Coastal Environmental
Processes, YICCAS, Yantai, Shandong 264003, People’s Republic of China
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Yang B, Zhang XB, Liu WN, Hu R, Tan W, Shen GL, Yu RQ. Fluorosurfactant-capped gold nanoparticles-based label-free colorimetric assay for Au3+ with tunable dynamic range via a redox strategy. Biosens Bioelectron 2013; 48:1-5. [DOI: 10.1016/j.bios.2013.03.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/15/2013] [Accepted: 03/15/2013] [Indexed: 12/01/2022]
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27
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Roper DK. Self-Assembly of Nanodroplets in Nanocomposite Materials in Nanodroplets Science and Technology. LECTURE NOTES IN NANOSCALE SCIENCE AND TECHNOLOGY 2013. [DOI: 10.1007/978-1-4614-9472-0_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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28
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Chen X, Ma B, Wang X, Yao S, Ni L, Zhou Z, Li Y, Huang W, Ma J, Zuo J, Wang X. From monomers to π stacks, from nonconductive to conductive: syntheses, characterization, and crystal structures of benzidine radical cations. Chemistry 2012; 18:11828-36. [PMID: 22829469 DOI: 10.1002/chem.201103972] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 05/14/2012] [Indexed: 11/06/2022]
Abstract
Salts that contain radical cations of benzidine (BZ), 3,3',5,5'-tetramethylbenzidine (TMB), 2,2',6,6'-tetraisopropylbenzidine (TPB), and 4,4'-terphenyldiamine (DATP) have been isolated with weakly coordinating anions [Al(OR(F))(4)](-) (OR(F) = OC(CF(3))(3)) or SbF(6)(-). They were prepared by reaction of the respective silver(I) salts with stoichiometric amounts of benzidine or its alkyl-substituted derivatives in CH(2)Cl(2). The salts were characterized by UV absorption and EPR spectroscopy as well as by their single-crystal X-ray structures. Variable-temperature UV/Vis absorption spectra of BZ(·)(+)[Al(OR(F))(4)](-) and TMB(·)(+)[Al(OR(F))(4)](-) in acetonitrile indicate an equilibrium between monomeric free radical cations and a radical-cation dimer. In contrast, the absorption spectrum of TPB(·)(+)SbF(6)(-) in acetonitrile indicates that the oxidation of TPB only resulted in a monomeric radical cation. Single-crystal X-ray diffraction studies show that in the solid state BZ and its methylation derivative (TMB) form radical-cation π dimers upon oxidation, whereas that modified with isopropyl groups (TPB) becomes a monomeric free radical cation. By increasing the chain length, π stacks of π dimers are obtained for the radical cation of DATP. The single-crystal conductivity measurements show that monomerized or π-dimerized radicals (BZ(·)(+), TMB(·)(+), and TPB(·)(+)) are nonconductive, whereas the π-stacked radical (DATP(·)(+)) is conductive. A conduction mechanism between chains through π stacks is proposed.
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Affiliation(s)
- Xiaoyu Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China
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Park JE, Choi MG, Chang SK. Colorimetric and Fluorescent Signaling of Au3+ by Desulfurization of Thiocoumarin. Inorg Chem 2012; 51:2880-4. [DOI: 10.1021/ic202080v] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ji Eun Park
- Department
of Chemistry, Chung-Ang University, Seoul
156-756, Korea
| | - Myung Gil Choi
- Department
of Chemistry, Chung-Ang University, Seoul
156-756, Korea
| | - Suk-Kyu Chang
- Department
of Chemistry, Chung-Ang University, Seoul
156-756, Korea
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30
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Jang GG, Hawkridge ME, Roper DK. Silver disposition and dynamics during electroless metal thin film synthesis. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34208a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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