1
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Li J, Guo H, Ji W, Chen H, Zhao F, Yang W, Guo L, Qian J. Detection of Tyrosinase Activity and Inhibitor Validation Based on N-GQDs Fluorescence Sensor. J Fluoresc 2024:10.1007/s10895-024-03788-5. [PMID: 38874823 DOI: 10.1007/s10895-024-03788-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
Tyrosinase inhibitors have the ability to resist melanin formation and can be used for clinical and cosmetic, so it is becoming extremely crucial to search a rapid and effective method for detecting t the activity of tyrosinase. In this study, a sensing probe based on Nitrogen-doped graphene quantum dots (N-GQDs) were prepared with carbamide and citric acid. Tyrosinase can oxidize dopamine to dopamine quinone, which can quench the fluorescence of N-GQDs based on the principle of fluorescence resonance energy transfer (FRET) process, and then the detection of tyrosinase activity can be achieved. The result demonstrated that the fluorescence intensity of N-GQDs was a linear correlation with the activity of tyrosinase. Wide detection linear ranges between 0.05 and 5 U/mL and high selectivity. The detection range of tyrosinase was 0.05 to 5 U/mL and LOD of 0.005 U/mL. According to the above, the fluorescence method established in this work could be successfully used for the trace analysis of tyrosinase and it was verified that KA is an inhibitor of tyrosinase.
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Affiliation(s)
- Jiaxin Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Hui Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China.
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China.
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Hangzhou, Zhejiang, 310014, China.
| | - Weiwei Ji
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Hanqi Chen
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Fengju Zhao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Wei Yang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Lili Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Junqing Qian
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
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2
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Ding X, Cai S, Chen X, Wang L, Hong C, Liu G. Fabrication and Electrochemical Study of [(2,2′-bipy/P2Mo18)10] Multilayer Composite Film Modified Electrode for Electrocatalytic Detection of Tyrosinase in Penaeus vannamei. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02391-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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3
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Zhang X, Wang L, Li X, Li X. AuNP aggregation-induced quantitative colorimetric aptasensing of sulfadimethoxine with a smartphone. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.061] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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4
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Ren H, Xu T, Liang K, Li J, Fang Y, Li F, Chen Y, Zhang H, Li D, Tang Y, Wang Y, Song C, Wang H, Zhu B. Self-assembled peptides-modified flexible field-effect transistors for tyrosinase detection. iScience 2022; 25:103673. [PMID: 35024592 PMCID: PMC8733230 DOI: 10.1016/j.isci.2021.103673] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/30/2021] [Accepted: 12/16/2021] [Indexed: 12/18/2022] Open
Abstract
Flexible biosensors have received intensive attention for real-time, non-invasive monitoring of cancer biomarkers. Highly sensitive tyrosinase biosensors, which are important for melanoma screening, remained a hurdle. Herein, high-performance tyrosinase-sensing field-effect transistor-based biosensors (bio-FETs) have been successfully achieved by self-assembling nanostructured tetrapeptide tryptophan-valine-phenylalanine-tyrosine (WVFY) on n-type metal oxide transistors. In the presence of target tyrosinase, the phenolic hydroxyl groups in WVFY are rapidly converted to benzoquinone with the consumption of protons, which could be detected potentiometrically by bio-FETs. As a result, the WVFY-modified bio-FETs exhibited an ultra-low detection limit of 1.9 fM and an optimal detection range of 10 fM to 1 nM toward tyrosinase sensing. Furthermore, flexible devices fabricated on ∼2.9-μm-thick polyimide (PI) substrates illustrated robust mechanical flexibility, which could be attached to human skin conformally. These achievements hold promise for wearable melanoma screening and provide designing guidelines for detecting other important cancer biomarkers with bio-FETs.
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Affiliation(s)
- Huihui Ren
- Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Tengyan Xu
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, China
| | - Kun Liang
- Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Jiye Li
- Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Yu Fang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, China
| | - Fanfan Li
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Key Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi'an 710071, China
| | - Yitong Chen
- Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Hongyue Zhang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, China
| | - Dingwei Li
- Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Yingjie Tang
- Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Yan Wang
- Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Chunyan Song
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
| | - Huaimin Wang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, China
| | - Bowen Zhu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China
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5
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Zeng H, Zhou S, Xie L, Zhang X, Zeng J, Yan M, Liang Q, Liu T, Liang K, Zhang L, Chen P, Jiang L, Kong B. Interfacially Super-Assembled Tyramine-Modified Mesoporous Silica-Alumina Oxide Heterochannels for Label-Free Tyrosinase Detection. Anal Chem 2021; 94:2589-2596. [PMID: 34962369 DOI: 10.1021/acs.analchem.1c04825] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tyrosinase (TYR) is a multifunctional copper-containing enzyme that plays a critical role in the biosynthetic pathway of melanin. Thus, the detection of TYR activity possesses vast importance from clinical diagnosis to the food industry. However, most TYR detection methods are expensive, complicated, and time-consuming. Herein, a functional nanofluidic heterochannel composed of an ultrathin tyramine-modified mesoporous silica layer (Tyr-MS) and alumina oxide (AAO) arrays is constructed by an interfacial super-assembly method. The heterochannel with plenty of enzyme catalytic sites for TYR provides the response of the ion current signal against TYR concentrations. Introducing enzymatic reaction paves the way for the heterochannel to achieve label-free, selective, specific detection of TYR. Notably, a highly sensitive detection of TYR with a limit of 2 U mL-1 was obtained by optimizing the modified conditions. Detailed investigations and theoretical calculations further reveal the mechanism for the detection performance. This work provides a simple, low-cost, quick response, and label-free platform based on functional nanofluidic devices for enzyme-sensing technologies.
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Affiliation(s)
- Hui Zeng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Shan Zhou
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Lei Xie
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Xin Zhang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Jie Zeng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Miao Yan
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Qirui Liang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Tianyi Liu
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
| | - Kang Liang
- School of Chemical Engineering and Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Lei Zhang
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Pu Chen
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Lei Jiang
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science Technical Institute of Physics and Chemistry, Chinese Academy of Science, Beijing 100190, P. R. China
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200438, P. R. China
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6
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Li S, Liu D, Wu B, Sun H, Liu X, Zhang H, Ding N, Wu L. One-pot synthesis of a peroxidase-like nanozyme and its application in visual assay for tyrosinase activity. Talanta 2021; 239:123088. [PMID: 34838324 DOI: 10.1016/j.talanta.2021.123088] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 01/02/2023]
Abstract
Both single-atom nanozymes (SAzymes) and protein-template metal nanoparticles have attracted comprehensive attention in several respects owing to their excellent catalytic performance, green facile synthesis process, and robustness. Herein, the peroxidase-like activity of single-atom copper anchored on bovine hemoglobin-template gadolinium nanoparticles (Cu,Gd@BHbFITC NPs) were successfully synthesized and two sensitive turn-on fluorescence strategies for tyrosinase (TYR) activity sensing were proposed for the first time. For strategy Ⅰ, TYR sensing was carried out from 1.00 to 7.80 U/mL with the detection limit (LOD) of 0.20 U/mL based on the fluorescence resonance energy transfer (FRET) between the fluorescein isothiocyanate (FITC) and the in situ generated polydopamine dots (PDA-dots). For strategy Ⅱ, The LOD of TYR was 0.05 U/mL with the linear range of 0.40-19.70 U/mL based on the elimination of inner-filter effect (IEF) between FITC and the reaction product (RC) of phenol and 4-Aminoantipyrine (AAP). The smartphone-assisted sensing platform was applied to construct the on-site detection of TYR with both strategies. The developed probe possessed good selectivity and was successfully utilized to TYR detection in serum samples.
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Affiliation(s)
- Shuangqin Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Di Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bingyan Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Huipeng Sun
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoyan Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Haixia Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| | - Nana Ding
- College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China
| | - Lan Wu
- College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu, 730030, China.
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7
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Ding XM, Cai SX, Wang L, Zhang YC. Electrocatalytic performance of tyrosinase detection in Penaeus vannamei based on a [(PSS/PPy)(P 2Mo 18/PPy) 5] multilayer composite film modified electrode. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1392-1403. [PMID: 33650584 DOI: 10.1039/d0ay02328k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Polyoxometalates (POMs) are widely used in the preparation of sensors that detect the content of substances because of their excellent electron transfer capabilities. In this paper, a [(PSS/PPy)(P2Mo18/PPy)5] multilayer composite film modified electrode was prepared by the potentiostatic deposition method. The electrochemical performance of the modified electrode was studied by cyclic voltammetry under the conditions of different modified layers, different supporting electrolytes and different sweep rates. Different concentrations of tyrosinase were catalyzed by the modified electrode under a suitable supporting electrolyte, and the electrochemical sensing of tyrosinase by the modified electrode was studied. The research results show that the modified electrode has good stability and reproducibility for electrochemical sensing of tyrosinase, and the response current has a good linear relationship with the amount of tyrosinase added. Taking peak III as an example, the detection limit (S/N = 3) was 2.7649 U mL-1. It can be known from the timing ampere curve that as the concentration of tyrosinase in the reaction system continues to increase, its response current increases stepwise, providing a linear curve in the range of 3.66 U mL-1 to 26.87 U mL-1, and the minimum detection limit (S/N = 3) reaches 0.0021 U mL-1. The [(PSS/PPy)(P2Mo18/PPy)5] multilayer composite membrane modified electrode was used to detect tyrosinase in Penaeus vannamei. The spiked recovery of the sample was 96.3-100.8%, indicating that the modified electrode has high accuracy and can be used for the detection of tyrosinase in actual samples.
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Affiliation(s)
- Xiao-Mei Ding
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, P. R. China.
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8
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Ding N, Xu H, Zong S, Gong Y, Hao Y, Tang X, Li Z. Detection of Tyrosinase in Real Food Samples and Living Cells by a Novel Near-Infrared Fluorescence Probe. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1994-2000. [PMID: 33529018 DOI: 10.1021/acs.jafc.0c07882] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A new near-infrared fluorescence probe was developed and applied to the fluorescence detection of tyrosinase in real food samples and living cells. The probe (E)-2-(2-(6-((3-hydroxybenzyloxy)carbonylamino)-2,3-dihydro-1H-xanthen-4-yl)vinyl)-3,3-dimethyl-1-propyl-3H-indolium (1) was designed and synthesized by coupling 3-hydroxybenzyl alcohol via carbamate bond with an amino hemicyanine skeleton, based on the high anti-interference ability of 3-hydroxybenzyl alcohol to reactive oxygen species and its binding affinity to tyrosinase. Compared with the existing tyrosinase probes, the proposed probe exhibits superior analytical performance, such as high selectivity, high sensitivity, superior spatiotemporal sampling ability, fluorescence signal switching at 706 nm, and low detection limit of 0.36 U mL-1. More importantly, the probe has been successfully used to monitor tyrosinase in the browning of apple slices for the first time, and the results indicated that the strongest fluorescence intensity could be achieved at 2.5 h to realize precise visual recognition of tyrosinase. Notably, the probe determined tyrosinase in real food samples (apple, banana, cheese, and red wine) with a stable average recovery range of 95.7-108.3% and has been successfully used to monitor tyrosinase in the living B16 cells. The superior properties of the probe make it of great potential use in food nutritional value evaluation and clinical diagnosis of melanin-related diseases.
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Affiliation(s)
- Ning Ding
- Department of Ophthalmology, The First Hospital of Jilin University, Changchun 130021, China
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Hui Xu
- Department of Ophthalmology, The First Hospital of Jilin University, Changchun 130021, China
| | - Shan Zong
- Department of Gynecologic Oncology, The First Hospital of Jilin University, Changchun 130021, China
| | - Yubao Gong
- Department of Orthopedics, The First Hospital of Jilin University, Changchun 130021, China
| | - Yitong Hao
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Xiaojie Tang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Zhao Li
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
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9
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Huang S, Li W, Zhou X, Xie M, Luo Q, Wen H, Luo Y, Xue W. One-step synthesis of levodopa functionalized carbon quantum dots for selective detection of tyrosinase and inhibitor screening. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Kumar P, Biswas S, Koner AL. Fast tyrosinase detection in early stage melanoma with nanomolar sensitivity using a naphthalimide-based fluorescent read-out probe. NEW J CHEM 2020. [DOI: 10.1039/d0nj02256j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report an expeditious approach for selective tyrosinase detection in early stage melanoma with nanomolar sensitivity using a napthalimide-based fluorescent probe.
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Affiliation(s)
- Prashant Kumar
- Bio-Nanotechnology Laboratory, Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal-462066
- India
| | - Suprakash Biswas
- Bio-Nanotechnology Laboratory, Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal-462066
- India
| | - Apurba Lal Koner
- Bio-Nanotechnology Laboratory, Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal-462066
- India
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11
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Zhao XE, Zuo YN, Qu X, Sun J, Liu L, Zhu S. Colorimetric determination of the activities of tyrosinase and catalase via substrate-triggered decomposition of MnO2 nanosheets. Mikrochim Acta 2019; 186:848. [DOI: 10.1007/s00604-019-3995-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/31/2019] [Indexed: 01/01/2023]
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12
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A dual-channel ratiometric fluorescent probe for determination of the activity of tyrosinase using nitrogen-doped graphene quantum dots and dopamine-modified CdTe quantum dots. Mikrochim Acta 2019; 186:635. [DOI: 10.1007/s00604-019-3733-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 08/01/2019] [Indexed: 10/26/2022]
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13
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Zhang J, Li Z, Tian X, Ding N. A novel hydrosoluble near-infrared fluorescent probe for specifically monitoring tyrosinase and application in a mouse model. Chem Commun (Camb) 2019; 55:9463-9466. [DOI: 10.1039/c9cc04714j] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel hydrosoluble near-infrared fluorescent probe is applied to imaging and detection of endogenous tyrosinase in living cells, zebrafish and a mouse model.
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Affiliation(s)
- Jiahang Zhang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control
- College of Food Engineering and Nutritional Science
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Zhao Li
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control
- College of Food Engineering and Nutritional Science
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Xinwei Tian
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control
- College of Food Engineering and Nutritional Science
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Ning Ding
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control
- College of Food Engineering and Nutritional Science
- Shaanxi Normal University
- Xi’an 710062
- China
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14
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A novel fluorescent biosensor for adrenaline detection and tyrosinase inhibitor screening. Anal Bioanal Chem 2018; 410:4145-4152. [PMID: 29663060 DOI: 10.1007/s00216-018-1063-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/22/2018] [Accepted: 04/04/2018] [Indexed: 01/20/2023]
Abstract
In this work, a novel simple fluorescent biosensor for the highly sensitive and selective detection of adrenaline was established. Firstly, water-soluble CuInS2 quantum dots (QDs) capped by L-Cys were synthesized via a hydrothermal synthesis method. Then, the positively charged adrenaline was assembled on the surface of CuInS2 QDs due to the electrostatic interactions and hydrogen bonding, which led to the formation of adrenaline-CuInS2 QD (Adr-CuInS2 QD) electrostatic complexes. Tyrosinase (TYR) can catalyze adrenaline to generate H2O2, and additionally oxidize the adrenaline to adrenaline quinone. Both the H2O2 and the adrenaline quinone can quench the fluorescence of the CuInS2 QDs through the electron transfer (ET) process. Thus, the determination of adrenaline could be facilely achieved by taking advantage of the fluorescence "turn off" feature of CuInS2 QDs. Under the optimum conditions, the fluorescence quenching ratio If/If0 (If and If0 were the fluorescence intensity of Adr-CuInS2 QDs in the presence and absence of TYR, respectively) was proportional to the logarithm of adrenaline concentration in the range of 1 × 10-8-1 × 10-4 mol L-1 with the detection limit of 3.6 nmol L-1. The feasibility of the proposed biosensor in real sample assay was also studied and satisfactory results were obtained. Significantly, the proposed fluorescent biosensor can also be utilized to screen TYR inhibitors. Graphical abstract Schematic illustration of the fluorescent biosensor for adrenaline detection (A) and tyrosinase inhibitor screening (B).
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15
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Han X, Zhang Y, Nie J, Zhao S, Tian Y, Zhou N. Gold nanoparticle based photometric determination of tobramycin by using new specific DNA aptamers. Mikrochim Acta 2017; 185:4. [PMID: 29594665 DOI: 10.1007/s00604-017-2568-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 11/09/2017] [Indexed: 12/26/2022]
Abstract
A magnetic bead-based SELEX was applied to identify 37 single-stranded DNA aptamers specific for tobramycin after ten rounds of selection. The aptamers were classified into nine families according to sequence analysis. Among them, several aptamers with typical sequences were selected and their dissociation constants (Kds) were determined by a fluorescent method. An aptamer termed "Ap 32", with a Kd value of 56.8 ± 4.6 nM, possesses the highest affinity and satisfactory specificity. Theoretical modeling showed that nucleotides 14-18 and 26-29 play a most significant role in the interaction between aptamer and tobramycin. Subsequently, the sequence of Ap 32 was optimized through rationally designed truncation. The truncated aptamer Ap 32-2 consists of 34 nucleotides and has a Kd that is similar to the original one. It was chosen as the optimal aptamer for use in the assay and was immobilized on gold nanoparticles. On addition of tobramycin, the color turns from red to purple. The findings were used to design a photometric assay (best performed at 520 nm) that has a linear response in the 100 nM to 1.4 μM concentration range, with a 37.9 nM detection limit. The method was successfully applied to the determination of tobramycin in (spiked) honey samples. Graphical abstract A 34-nucleotide aptamer specific for tobramycin was obtained through magnetic beads-based systematic evolution of ligands by exponential enrichment (SELEX) and structural analysis-based rational post-SELEX truncation, and then applied to the determination of tobramycin using a gold nanoparticle-based photometric assay.
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Affiliation(s)
- Xuyan Han
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Yuhong Zhang
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Jingjing Nie
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Songyin Zhao
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Yaping Tian
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Nandi Zhou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China.
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16
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Hu JJ, Bai XL, Liu YM, Liao X. Functionalized carbon quantum dots with dopamine for tyrosinase activity analysis. Anal Chim Acta 2017; 995:99-105. [DOI: 10.1016/j.aca.2017.09.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 09/17/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
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17
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Lei C, Zhao XE, Sun J, Yan X, Gao Y, Gao H, Zhu S, Wang H. A simple and novel colorimetric assay for tyrosinase and inhibitor screening using 3,3',5,5'-tetramethylbenzidine as a chromogenic probe. Talanta 2017; 175:457-462. [PMID: 28842016 DOI: 10.1016/j.talanta.2017.07.070] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/13/2017] [Accepted: 07/23/2017] [Indexed: 01/20/2023]
Abstract
A novel colorimetric method for the detection of tyrosinase (TYR) and its inhibitor by taking utilization of Ag+-3,3',5,5'-tetramethylbenzidine (TMB) detection system has been proposed. Ag+ could oxidize TMB to oxidized TMB (oxTMB) and induce a blue color solution corresponding to an absorption peak centered at 652nm. The addition of dopamine (DA) could cause the reduction of oxTMB which resulted in the fading of the blue color and a decrease of the absorbance at 652nm. However, in the presence of TYR, DA could be oxidized to dopaquinone, which inhibited the reduction of oxTMB by DA, resulting in a blue color recovery and an increase of the absorbance at 652nm. Based on this finding, we propose a method to quantitatively detect TYR activity with the help of UV-vis spectroscopy. The developed assay is highly sensitive with a low detection limit of 0.010U/mL. More importantly, this method is fairly simple and inexpensive without the use of complicated nanomaterials. In addition, it constructs a useful platform for TYR inhibitor screening.
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Affiliation(s)
- Cuihua Lei
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Xian-En Zhao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China; Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining City, Qinghai Province 810001, China.
| | - Jing Sun
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining City, Qinghai Province 810001, China
| | - Xiaolu Yan
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Yue Gao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Han Gao
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China
| | - Shuyun Zhu
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China; Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining City, Qinghai Province 810001, China.
| | - Hua Wang
- Shandong Provincial Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province 273165, China.
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18
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Ao H, Qian Z, Zhu Y, Zhao M, Tang C, Huang Y, Feng H, Wang A. A fluorometric biosensor based on functional Au/Ag nanoclusters for real-time monitoring of tyrosinase activity. Biosens Bioelectron 2016; 86:542-547. [DOI: 10.1016/j.bios.2016.07.051] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 10/21/2022]
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19
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Boujakhrout A, Díez P, Martínez-Ruíz P, Sánchez A, Parrado C, Povedano E, Soto P, Pingarrón JM, Villalonga R. Gold nanoparticles/silver-bipyridine hybrid nanobelts with tuned peroxidase-like activity. RSC Adv 2016. [DOI: 10.1039/c6ra12972b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel Au nanoparticles-doped silver-bipyridine coordination polymers with fractal morphology and intrinsic peroxidase-like activity were prepared.
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Affiliation(s)
- Abderrahmane Boujakhrout
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Paula Díez
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Paloma Martínez-Ruíz
- Department of Organic Chemistry I
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Alfredo Sánchez
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Concepción Parrado
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Eloy Povedano
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Paul Soto
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - José M. Pingarrón
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
| | - Reynaldo Villalonga
- Department of Analytical Chemistry
- Faculty of Chemistry
- Complutense University of Madrid
- 28040-Madrid
- Spain
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20
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Zhao XE, Lei CH, Wang YH, Qu F, Zhu SY, Wang H, You JM. A fluorometric assay for tyrosinase activity and its inhibitor screening based on graphene quantum dots. RSC Adv 2016. [DOI: 10.1039/c6ra13325h] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pristine graphene quantum dots (GQDs) without any functionalization were used as probes to develop a sensitive and selective fluorescence sensing platform for the detection of tyrosinase (TYR) activity and its inhibitor screening for the first time.
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Affiliation(s)
- X. E. Zhao
- Shandong Provincial Key Laboratory of Life-Organic Analysis
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - C. H. Lei
- Shandong Provincial Key Laboratory of Life-Organic Analysis
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Y. H. Wang
- Shandong Provincial Key Laboratory of Life-Organic Analysis
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - F. Qu
- Shandong Provincial Key Laboratory of Life-Organic Analysis
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - S. Y. Zhu
- Shandong Provincial Key Laboratory of Life-Organic Analysis
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - H. Wang
- Shandong Provincial Key Laboratory of Life-Organic Analysis
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - J. M. You
- Shandong Provincial Key Laboratory of Life-Organic Analysis
- College of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
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21
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Chai L, Zhou J, Feng H, Tang C, Huang Y, Qian Z. Functionalized Carbon Quantum Dots with Dopamine for Tyrosinase Activity Monitoring and Inhibitor Screening: In Vitro and Intracellular Investigation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23564-23574. [PMID: 26440479 DOI: 10.1021/acsami.5b06711] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Sensitive assay of tyrosinase (TYR) activity is in urgent demand for both fundamental research and practical application, but the exploration of functional materials with good biocompatibility for its activity evaluation at the intracellular level is still challenging until now. In this work, we develop a convenient and real-time assay with high sensitivity for TYR activity/level monitoring and its inhibitor screening based on biocompatible dopamine functionalized carbon quantum dots (Dopa-CQDs). Dopamine with redox property was functionalized on the surface of carbon quantum dots to construct a Dopa-CQDs conjugate with strong bluish green fluorescence. When the dopamine moiety in Dopa-CQDs conjugate was oxidized to a dopaquinone derivative under specific catalysis of TYR, an intraparticle photoinduced electron transfer (PET) process between CQDs and dopaquinone moiety took place, and then the fluorescence of the conjugate could be quenched simultaneously. Quantitative evaluation of TYR activity was established in terms of the relationship between fluorescence quenching efficiency and TYR activity. The assay covered a broad linear range of up to 800 U/L with a low detection limit of 7.0 U/L. Arbutin, a typical inhibitor of TYR, was chosen as an example to assess its function of inhibitor screening, and positive results were observed that fluorescence quenching extent of the probe was reduced in the presence of arbutin. It is also demonstrated that Dopa-CQD conjugate possesses excellent biocompatibility, and can sensitively monitor intracellular tyrosinase level in melanoma cells and intracellular pH changes in living cells, which provides great potential in application of TYR/pH-associated disease monitoring and medical diagnostics.
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Affiliation(s)
- Lujing Chai
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Jin Zhou
- Beijing National laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Bejing 100190, China
| | - Hui Feng
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Cong Tang
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Yuanyuan Huang
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
| | - Zhaosheng Qian
- College of Chemistry and Life Science, Zhejiang Normal University , Jinhua 321004, China
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22
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Huang T, Xiong Y, Chen N, Wang D, Lai Y, Deng C. Highly selective enrichment of baicalin in rat plasma by boronic acid-functionalized core-shell magnetic microspheres: Validation and application to a pharmacokinetic study. Talanta 2015; 147:501-9. [PMID: 26592639 DOI: 10.1016/j.talanta.2015.10.042] [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] [Received: 07/12/2015] [Revised: 10/11/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
Abstract
To the best of our knowledge, this study is the first to successfully apply a novel, highly selective enrichment technique based on boronic acid-functionalized core-shell magnetic microspheres (BA-Fe3O4@SiO2-Au@mSiO2) with a large surface area and uniform pore size, to determine the baicalin concentration in rat plasma by HPLC. By taking advantage of the special interaction between boronic acid and baicalin under alkaline conditions, as well as the microspheres' size exclusion ability, baicalin was selectively extracted from protein-rich biosamples, such as plasma, without any other pretreatment procedure except for a 10-min vortexing step. BA-Fe3O4@SiO2-Au@mSiO2 microsphere-adsorbed baicalin was straightforwardly and rapidly isolated from the matrix using a magnet. Baicalin was subsequently eluted from the microspheres under acidic conditions for 2min for further HPLC analysis. The extraction conditions, such as the amount of microspheres added, adsorption time, adsorption pH, and elution time and pH, were also determined. Furthermore, method validation, including the linear range, detection limit, precision, accuracy, and recovery, were determined. This newly developed method based on BA-Fe3O4@SiO2-Au@mSiO2 microspheres is a simple, accurate, selective, and green analytical preparatory technique for analyzing baicalin in rat plasma. This study will be further novel research on the analysis of complex plasma samples and the pharmacokinetics of drugs similar to baicalin.
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Affiliation(s)
- Taomin Huang
- Department of Pharmacy, Eye Ear Nose Throat Hospital of Fudan University, No. 83, Fenyang Road, Shanghai 200031, China.
| | - Ya Xiong
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University, No. 220, Handan Road, Shanghai 200433, China
| | - Nianzu Chen
- Department of Pharmacy, Eye Ear Nose Throat Hospital of Fudan University, No. 83, Fenyang Road, Shanghai 200031, China
| | - Donglei Wang
- Department of Pharmacy, Eye Ear Nose Throat Hospital of Fudan University, No. 83, Fenyang Road, Shanghai 200031, China
| | - Yonghua Lai
- Department of Pharmacy, Eye Ear Nose Throat Hospital of Fudan University, No. 83, Fenyang Road, Shanghai 200031, China
| | - Chunhui Deng
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University, No. 220, Handan Road, Shanghai 200433, China.
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23
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Yan X, Li H, Zheng W, Su X. Visual and Fluorescent Detection of Tyrosinase Activity by Using a Dual-Emission Ratiometric Fluorescence Probe. Anal Chem 2015; 87:8904-9. [DOI: 10.1021/acs.analchem.5b02037] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xu Yan
- Department
of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Hongxia Li
- School
of Pharmacy, Jilin University, Changchun 130021, P.R. China
| | - Weishi Zheng
- State
Key Laboratory of Supramolecular Structure and Materials, College
of Chemistry, Jilin University, Changchun 130012, P.R. China
| | - Xingguang Su
- Department
of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
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24
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Teng Y, Jia X, Li J, Wang E. Ratiometric Fluorescence Detection of Tyrosinase Activity and Dopamine Using Thiolate-Protected Gold Nanoclusters. Anal Chem 2015; 87:4897-902. [DOI: 10.1021/acs.analchem.5b00468] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ye Teng
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaofang Jia
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Li
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Erkang Wang
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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25
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Novel synthesis of gold nanoclusters templated with l-tyrosine for selective analyzing tyrosinase. Anal Chim Acta 2014; 840:87-92. [DOI: 10.1016/j.aca.2014.05.050] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/11/2014] [Accepted: 05/31/2014] [Indexed: 11/24/2022]
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26
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Zhou N, Wang J, Zhang J, Li C, Tian Y, Wang J. Selection and identification of streptomycin-specific single-stranded DNA aptamers and the application in the detection of streptomycin in honey. Talanta 2013; 108:109-16. [PMID: 23601877 DOI: 10.1016/j.talanta.2013.01.064] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 01/03/2013] [Accepted: 01/04/2013] [Indexed: 12/22/2022]
Abstract
Single-stranded DNA (ssDNA) aptamers specific to streptomycin were screened and identified from a random oligonucleotides library by affinity magnetic beads-based SELEX. After eight rounds of selection, 16 ssDNA with different sequences were identified. Then the dissociation constants (Kd) of these ssDNA were determined and an aptamer (STR1) with highest affinity for streptomycin was identified. Further study showed that aptamer STR1 exhibits very low affinity for other aminoglycoside antibiotics, indicating high specificity. With this aptamer, detection of streptomycin was achieved by using gold nanoparticles (AuNPs)-based colorimetric method. In the presence of streptomycin, the competitive binding of the target and the aptamer decreases the stability of AuNPs in NaCl solution, triggers the aggregation, and exhibits visible color change of AuNPs solution. Through UV-visible spectroscopic quantitative analysis, streptomycin can be detected in the range of 0.2-1.2 μM. The presence of other aminoglycoside antibiotics shows neglectable disturbance. Furthermore, the established method was utilized to detect streptomycin in honey, and the same low detection limit and linear detection range were achieved.
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Affiliation(s)
- Nandi Zhou
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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27
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Deka J, Paul A, Chattopadhyay A. Modulating enzymatic activity in the presence of gold nanoparticles. RSC Adv 2012. [DOI: 10.1039/c2ra20056b] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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