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Li Y, Liu W, Jiang X, Liu H, Wang S, Zhang G, Luo X, Zhao Y. A dual-signal triple-readout optical sensing platform for α-glucosidase and β-glucosidase activity monitoring and inhibitor screening based on luminescent covalent organic framework. Anal Chim Acta 2024; 1316:342836. [PMID: 38969426 DOI: 10.1016/j.aca.2024.342836] [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: 04/06/2024] [Revised: 05/24/2024] [Accepted: 06/05/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND As promising biomarkers of diabetes, α-glucosidase (α-Glu) and β-glucosidase (β-Glu) play a crucial role in the diagnosis and management of diseases. However, there is a scarcity of techniques available for simultaneously and sensitively detecting both enzymes. What's more, most of the approaches for detecting α-Glu and β-Glu rely on a single-mode readout, which can be affected by multiple factors leading to inaccurate results. Hence, the simultaneous detection of the activity levels of both enzymes in a single sample utilizing multiple-readout sensing approaches is highly attractive. RESULTS In this work, we constructed a facile sensing platform for the simultaneous determination of α-Glu and β-Glu by utilizing a luminescent covalent organic framework (COF) as a fluorescent indicator. The enzymatic hydrolysis product common to both enzymes, p-nitrophenol (PNP), was found to affect the fluorometric signal through an inner filter effect on COF, enhance the colorimetric response by intensifying the absorption peak at 400 nm, and induce changes in RGB values when analyzed using a smartphone-based color recognition application. By combining fluorometric/colorimetric measurements with smartphone-assisted RGB mode, we achieved sensitive and accurate quantification of α-Glu and β-Glu. The limits of detection for α-Glu were determined to be 0.8, 1.22, and 1.85 U/L, respectively. Similarly, the limits of detection for β-Glu were 0.16, 0.42, and 0.53 U/L, respectively. SIGNIFICANCE Application of the proposed sensing platform to clinical serum samples revealed significant differences in the two enzymes between healthy people and diabetic patients. Additionally, the proposed sensing method was successfully applied for the screening of α-Glu inhibitors and β-Glu inhibitors, demonstrating its viability and prospective applications in the clinical management of diabetes as well as the discovery of antidiabetic medications.
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Affiliation(s)
- Yue Li
- School of Science, Xihua University, Chengdu, 610039, China
| | - Weiping Liu
- Department of Clinical Laboratory, Zigong First People's Hospital, Zigong, 643000, Sichuan, China
| | - Xinxin Jiang
- School of Science, Xihua University, Chengdu, 610039, China
| | - Hongmei Liu
- School of Science, Xihua University, Chengdu, 610039, China
| | - Sikai Wang
- School of Science, Xihua University, Chengdu, 610039, China
| | - Guoqi Zhang
- School of Science, Xihua University, Chengdu, 610039, China.
| | - Xiaojun Luo
- School of Science, Xihua University, Chengdu, 610039, China.
| | - Yan Zhao
- School of Science, Xihua University, Chengdu, 610039, China; Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Xihua University, Chengdu, 610039, China.
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Fu Q, Liang S, Zhang S, Zhou C, Lv Y, Su X. Boron-doped g-C 3N 4 supporting Cu nanozyme for colorimetric-fluorescent-smartphone detection of α-glucosidase. Anal Chim Acta 2024; 1311:342715. [PMID: 38816154 DOI: 10.1016/j.aca.2024.342715] [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: 11/13/2023] [Revised: 04/22/2024] [Accepted: 05/09/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Due to that the higher activity of nanozymes would bring outstanding performance for the nanozyme-based biosensing strategies, great efforts have been made by researchers to improve the catalytic activity of nanozymes, and novel nanozymes with high catalytic activity are desired. Considering the crucial role in controlling blood glucose level, strategies like colorimetric and chemiluminescence to monitor α-glucosidase are developed. However, multi-mode detection with higher sensitivity was insufficient. Therefore, developing triple-mode detection method for α-glucosidase based on great performance nanozyme is of great importance. RESULTS In this work, a novel nanozyme Cu-BCN was synthesized by loading Cu on boron doped carbon substrate g-C3N4 and applied to the colorimetric-fluorescent-smartphone triple-mode detection of α-glucosidase. In the presence of H2O2, Cu-BCN catalyzed the generation of 1O2 from H2O2, 1O2 subsequently oxidized TMB to blue colored oxTMB. In the presence of hydroquinone (HQ), the ROS produced from H2O2 was consumed, inhibiting the oxidation of TMB, which endows the possibility of colorimetric and visual on-site detection of HQ. Further, due to that the fluorescence of Mg-CQDs at 444 nm could be quenched by oxTMB, HQ could also be quantified through fluorescent mode. Since α-glucosidase could efficiently hydrolyze α-arbutin into HQ, the sensitive detection of α-glucosidase was realized. Further, colorimetric paper-based device (c-PAD) was fabricated for on-site α-glucosidase detection. The LODs for α-glucosidase via three modes were 2.20, 1.62 and 2.83 U/L respectively, high sensitivities were realized. SIGNIFICANCE The nanozyme Cu-BCN possesses higher peroxidase-like activity by doping boron to the substrate than non-doped Cu-CN. The proposed triple-mode detection of α-glucosidase is more sensitive than most previous reports, and is reliable when applied to practical sample. Further, the smartphone-based colorimetric paper-based analytical device (c-PAD) made of simple materials could also detect α-glucosidase sensitively. The smartphone-based on-site detection provided a convenient, instrument-free and sensitive sensing method for α-glucosidase.
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Affiliation(s)
- Qingjie Fu
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Shuang Liang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Siqi Zhang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Chenyu Zhou
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Yuntai Lv
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Xingguang Su
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China.
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Wang T, Tan HS, Wang AJ, Li SS, Feng JJ. Fluorescent metal nanoclusters: From luminescence mechanism to applications in enzyme activity assays. Biosens Bioelectron 2024; 257:116323. [PMID: 38669842 DOI: 10.1016/j.bios.2024.116323] [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: 01/12/2024] [Revised: 04/09/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024]
Abstract
Metal nanoclusters (MNCs) have outstanding fluorescence property and biocompatibility, which show widespread applications in biological analysis. Particularly, evaluation of enzyme activity with the fluorescent MNCs has been developed rapidly within the past several years. In this review, we first introduced the fluorescent mechanism of mono- and bi-metallic nanoclusters, respectively, whose interesting luminescence properties are mainly resulted from electron transfer between the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) energy levels. Meanwhile, the charge migration within the structure occurs through ligand-metal charge transfer (LMCT) or ligand-metal-metal charge transfer (LMMCT). On such foundation, diverse enzyme activities were rigorously evaluated, including three transferases and nine hydrolases, in turn harvesting rapid research progresses within past 5 years. Finally, we summarized the design strategies for evaluating enzyme activity with the MNCs, presented the major issues and challenges remained in the relevant research, coupled by showing some improvement measures. This review will attract researchers dedicated to the studies of the MNCs and provide some constructive insights for their further applications in enzyme analysis.
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Affiliation(s)
- Tong Wang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Hong-Sheng Tan
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Ai-Jun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Shan-Shan Li
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China.
| | - Jiu-Ju Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
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Zhong Y, Wang Q, Chen ZJ, Wang H, Zhao S. GAA/(Au-Au/IrO 2)@Cu(PABA) reactor with cascade catalytic activity for α-glucosidase inhibitor screening. Anal Chim Acta 2024; 1298:342408. [PMID: 38462333 DOI: 10.1016/j.aca.2024.342408] [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: 11/28/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND In vitro screening strategies based on the inhibition of α-glucosidase (GAA) activity have been widely used for the discovery of potential antidiabetic drugs, but they still face some challenges, such as poor enzyme stability, non-reusability and narrow range of applicability. To overcome these limitations, an in vitro screening method based on GAA@GOx@Cu-MOF reactor was developed in our previous study. However, the method was still not satisfactory enough in terms of construction cost, pH stability, organic solvent resistance and reusability. Thence, there is still a great need for the development of in vitro screening methods with lower cost and wider applicability. RESULTS A colorimetric sensing strategy based on GAA/(Au-Au/IrO2)@Cu(PABA) cascade catalytic reactor, which constructed through simultaneous encapsulating Au-Au/IrO2 nanozyme with glucose oxidase-mimicking and peroxidase-mimicking activities and GAA in Cu(PABA) carrier with peroxidase-mimicking activity, was innovatively developed for in vitro screening of GAA inhibitors in this work. It was found that the reactor not only exhibited excellent thermal stability, pH stability, organic solvent resistance, room temperature storage stability, and reusability, but also possessed cascade catalytic performance, with approximately 12.36-fold increased catalytic activity compared to the free system (GAA + Au-Au/IrO2). Moreover, the in vitro GAA inhibitors screening method based on this reactor demonstrated considerable anti-interference performance and detection sensitivity, with a detection limit of 4.79 nM for acarbose. Meanwhile, the method owned good reliability and accuracy, and has been successfully applied to the in vitro screening of oleanolic acid derivatives as potential GAA inhibitors. SIGNIFICANCE This method not only more effectively solved the shortcomings of poor stability, narrow scope of application, and non-reusability of natural enzymes in the classical method compared with our previous work, but also broaden the application scope of Au-Au/IrO2 nanozyme with glucose oxidase and peroxidase mimicking activities, and Cu(PABA) carrier with peroxidase mimicking activity, which was expected to be a new generation candidate method for GAA inhibitor screening.
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Affiliation(s)
- Yingying Zhong
- School of Food & Pharmaceutical Engineering, Zhaoqing University, Zhaoqing, 526061, People's Republic of China.
| | - Qing Wang
- School of Food & Pharmaceutical Engineering, Zhaoqing University, Zhaoqing, 526061, People's Republic of China
| | - Zi-Jian Chen
- School of Food & Pharmaceutical Engineering, Zhaoqing University, Zhaoqing, 526061, People's Republic of China
| | - Hongwu Wang
- School of Food & Pharmaceutical Engineering, Zhaoqing University, Zhaoqing, 526061, People's Republic of China.
| | - Suqing Zhao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.
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Cui L, Yang Y, Jiang S, Cao X, Chu W, Chen J, Sun B, Ren K, Zhang CY. Exogenous Co-Reactant-Free Electrochemiluminescent Biosensor for Ratiometric Measurement of α-Glucosidase Based on a ZIF-67-Regulated Hydrogen-Bonded Organic Framework. ACS Sens 2024; 9:1023-1030. [PMID: 38353664 DOI: 10.1021/acssensors.4c00036] [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] [Indexed: 02/24/2024]
Abstract
The development of highly sensitive and selective analytical approaches for monitoring enzymatic activity is critical for disease diagnosis and biomedical research. Herein, we develop an exogenous co-reactant-free electrochemiluminescence (ECL) biosensor for the ratiometric measurement of α-glucosidase (α-Glu) based on a zeolitic imidazolate framework (ZIF-67)-regulated pyrene-based hydrogen-bonded organic framework (HOF-101). Target α-Glu can hydrolyze maltose to α-d-glucose, which can subsequently react with GOx to produce gluconic acid. The resultant gluconic acid can dissolve ZIF-67, leading to the recovery of the HOF-101 cathodic ECL signal and the decrease of the luminol anodic ECL signal. The long-range ordered structure of HOF-101 can speed up charge transfer, resulting in a stable and strong cathodic ECL signal. Moreover, ZIF-67 can not only efficiently quench the ECL signal of HOF-101 due to ECL resonance energy transfer between HOF-101 and ZIF-67 as well as the steric hindrance effect of ZIF-67 but also enhance the anodic ECL emission of luminol in dissolved O2 system because of its ordered and porous crystalline structure and the atomically dispersed Co2+. Notably, HOF-101 possesses a higher ECL efficiency (32.22%) compared with the Ru(bpy)32+ standard. Importantly, this ratiometric ECL biosensor shows high sensitivity (a detection limit of 0.19 U L-1) and a broad linear range (0.2-50 U L-1). This biosensor can efficiently eliminate systematic errors and enhance detection reliability without the involvement of exogenous co-reactants, and it displays good assay performance in human serum samples, holding great promise in biomedical research studies.
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Affiliation(s)
- Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Yuncong Yang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Su Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Xueting Cao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Wenqi Chu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Jianwei Chen
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Bing Sun
- School of Science, China University of Geosciences (Beijing), Beijing 100083, China
| | - Kewei Ren
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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6
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Yang QQ, He SB, Zhang YL, Li M, You XH, Xiao BW, Yang L, Yang ZQ, Deng HH, Chen W. A colorimetric sensing strategy based on chitosan-stabilized platinum nanoparticles for quick detection of α-glucosidase activity and inhibitor screening. Anal Bioanal Chem 2024:10.1007/s00216-024-05198-9. [PMID: 38358531 DOI: 10.1007/s00216-024-05198-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/16/2024]
Abstract
α-Glucosidase (α-Glu) is implicated in the progression and pathogenesis of type II diabetes (T2D). In this study, we developed a rapid colorimetric technique using platinum nanoparticles stabilized by chitosan (Ch-PtNPs) to detect α-Glu activity and its inhibitor. The Ch-PtNPs facilitate the conversion of 3,3',5,5'-tetramethylbenzidine (TMB) into oxidized TMB (oxTMB) in the presence of dissolved O2. The catalytic hydrolysis of 2-O-α-D-glucopyranosyl-L-ascorbic acid (AA-2G) by α-Glu produces ascorbic acid (AA), which reduces oxTMB to TMB, leading to the fading of the blue color. However, the presence of α-Glu inhibitors (AGIs) hinders the generation of AA, allowing Ch-PtNPs to re-oxidize colorless TMB back to blue oxTMB. This unique phenomenon enables the colorimetric detection of α-Glu activity and AGIs. The linear range for α-Glu was found to be 0.1-1.0 U mL-1 and the detection limit was 0.026 U mL-1. Additionally, the half-maximal inhibition value (IC50) for acarbose, an α-Glu inhibitor, was calculated to be 0.4769 mM. Excitingly, this sensing platform successfully detected α-Glu activity in human serum samples and effectively screened AGIs. These promising findings highlight the potential application of the proposed strategy in clinical diabetes diagnosis and drug discovery.
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Affiliation(s)
- Qin-Qin Yang
- Experimental Teaching Center, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
| | - Shao-Bin He
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
- Laboratory of Clinical Pharmacy, Department of Pharmacy, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Yi-Lin Zhang
- Experimental Teaching Center, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
| | - Min Li
- Experimental Teaching Center, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
| | - Xiu-Hua You
- Experimental Teaching Center, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
| | - Bo-Wen Xiao
- Experimental Teaching Center, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
| | - Liu Yang
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
| | - Zhi-Qiang Yang
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China
| | - Hao-Hua Deng
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China.
| | - Wei Chen
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy, Fujian Medical University, Fuzhou, 350004, China.
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Li S, Zhang H, Huang Z, Jia Q. Fluorometric and colorimetric dual-mode sensing of α-glucosidase based on aggregation-induced emission enhancement of AuNCs. J Mater Chem B 2024; 12:1550-1557. [PMID: 38251966 DOI: 10.1039/d3tb02532b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Herein, a fluorometric and colorimetric dual-mode assay platform used for α-glucosidase (α-Glu) activity sensing based on aggregation-induced emission enhancement (AIEE) of AuNCs was developed for the first time. The quantum yield (QY) and fluorescence lifetime of AuNCs were successfully ameliorated by Ce3+-triggered AIEE (Ce@AuNCs). Subsequently, on the basis of the inner filter effect (IFE) and dynamic quenching effect (DQE) between 2,6-dichlorophenolindophenol (DCIP) and Ce@AuNCs as well as the reduction of DCIP by ascorbic acid (AA) generated from α-Glu-catalyzed hydrolysis of L-ascorbic acid-2-O-α-D-glucopyranosyl (AA2G), the marriage of fluorometric and colorimetric modes applied for α-Glu activity monitoring was achieved. Besides, the feasibility of this dual-mode sensing system was confirmed by the assays versus potential interfering substances and in real samples. In particular, this system was further applied to evaluate natural α-Glu inhibitors (AGIs) including luteolin, apigenin, and hesperidin. Overall, the multi-mode optical sensor newly designed here has the potential for the accurate discovery of natural anti-diabetes drugs and the therapy of diabetes.
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Affiliation(s)
- Songrui Li
- College of Chemistry, Jilin University, Changchun 130012, China.
| | - Huifeng Zhang
- Institute of Agricultural Quality Standards and Testing Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Zhenzhen Huang
- College of Chemistry, Jilin University, Changchun 130012, China.
| | - Qiong Jia
- College of Chemistry, Jilin University, Changchun 130012, China.
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Aschemacher NA, Teglia CM, Siano ÁS, Gutierrez FA, Goicoechea HC. Development of an electrochemical sensor using carbon nanotubes and hydrophobic natural deep eutectic solvents for the detection of α-glucosidase activity in extracts of autochthonous medicinal plants. Talanta 2024; 268:125313. [PMID: 37864855 DOI: 10.1016/j.talanta.2023.125313] [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: 08/24/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/23/2023]
Abstract
The present work describes for the first time the use of a hydrophobic natural deep eutectic solvent (H-NADES) as a dispersant for carboxylated nanotubes for the design and construction of an electrochemical sensor for the assay of α-glucosidase and its inhibitors. In this work, we used as the electrochemical probe the product of the enzymatic reaction, which consists of two redox groups and generates the analytical signal. The combination of de carboxylic multi-walled carbon nanotubes (MWCNTc) and the H-NADES of thymol and lactic acid (TLa) increases the electroactive surface area and promotes electron transfer of the electrode modified with carbon nanotubes. The electrochemical sensor enabled the detection of α-glucosidase in a range of 0.004-0.1 U mL-1 with a detection limit of 0.0013 U mL-1, which is lower than most existing methods. In addition, two α-glucosidase inhibitors, acarbose and quercetin, and two plant extracts, Schinus molle and Eugenia uniflora, were evaluated to assess the feasibility of screening potential antidiabetic drugs, and the IC50 values were 5.37 μg mL-1 and 5.28 μg mL-1. Thus, this sensing strategy represents the beginning of the incorporation of NADES in the development and design of novel sensors and their application in electrochemistry and medical analysis.
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Affiliation(s)
- Nicolás A Aschemacher
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Laboratorio de Péptidos Bioactivos (LPB), Departamento de Química Orgánica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
| | - Carla M Teglia
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina
| | - Álvaro S Siano
- Laboratorio de Péptidos Bioactivos (LPB), Departamento de Química Orgánica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina
| | - Fabiana A Gutierrez
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina.
| | - Héctor C Goicoechea
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina
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9
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Zhang H, Luo J, Gan F. Sulfur dots and iron co-doped nickel-based metal-organic frameworks with high nanozyme activity for the colorimetric determination of α-glucosidase activity. Anal Chim Acta 2023; 1279:341788. [PMID: 37827636 DOI: 10.1016/j.aca.2023.341788] [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: 03/25/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 10/14/2023]
Abstract
Alpha-glucosidase (α-Glu) plays a crucial role in regulating the normal physiological function of the body; therefore, α-Glu activity detection is crucial in clinical studies. In this study, a nickel-based metal-organic framework (Ni-MOF) co-doped with sulfur dots (SDs) and iron (Fe) was designed and constructed for the colorimetric detection of α-Glu. The SDs/Fe/Ni-MOF shows a very low Michaelis-Menten constant (0.0466 mM) for H2O2, suggesting a very high affinity for H2O2. Additionally, the free radicals generated by the nanozyme-catalyzed reaction were analyzed, and the feasibility of the nanozyme-catalyzed process was further verified using density functional theory. The bimetallic (Fe and Ni) can improve the catalytic activity of the material, and sulfur can improve the affinity with the substrate to further enhance the catalytic performance. Notably, hydroquinone (HQ) inhibits nanozyme activity, whereas α-Glu hydrolyzes alpha-arbutin (α-Arb) and subsequently produces HQ. Therefore, this study developed a method for detecting α-Glu activity using α-Arb as a substrate. This method has high selectivity, a wide detection range (1.00-100 U L-1), and a low detection limit (0.525 U L-1). Finally, the method was used to α-Glu activity detected in serum samples with good accuracy. This study provides a new method for the detection of α-Glu.
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Affiliation(s)
- Hanqiang Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Key Laboratory of Biomedical Sensors of Ganzhou, Scientific Research Center, Gannan Medical University, Ganzhou, 341000, PR China
| | - Jianfei Luo
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China
| | - Feng Gan
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China.
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Xiang L, Cheng W, Zhang J, Li X, Khan A, Yi Y, Li J. Signal-off electrochemical sensor for matrix metalloproteinase 9 detection based on sacrificial FeMOF and host-guest strategy. Biosens Bioelectron 2023; 237:115455. [PMID: 37311407 DOI: 10.1016/j.bios.2023.115455] [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: 01/04/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
Matrix metalloproteinase-9 (MMP-9) has been implicated in various tumor cell invasions and metastases. In light of the limitations of traditional methods for MMP-9 detection, we have constructed a novel biosensor depending on cucurbit[8]uril (CB[8]) -mediated host-guest interactions and a sacrificial iron metal-organic framework (FeMOF). Herein, MMP9-specific peptides modified on the gold bare electrode are bonded to the FeMOF@AuNPs@peptide complex through CB[8] addition. The connection between MMP9-specific peptides and signal peptides via CB[8] provides stability as well as enables the immobilization of FeMOF on the electrode surface. When Fe3+ from the FeMOF interacts with electrochemical buffer K4Fe(CN)6, Prussian blue will be generated on the gold electrode surface, and a significantly enlarged current response can be detected. However, in the presence of MMP-9, their peptide substrates are specifically cleaved at the site between serine (S) and Leucine (L), which causes an abrupt decrease in the electrochemical signal. The change of signal can reflect MMP-9 concentration. This sensor can reach an ultrahigh sensitivity with a wide detection range of 0.5 pg⋅mL-1 to 500 ng⋅mL-1 and a low detection limit of 1.30 pg⋅mL-1. Importantly, this sensor is very simple, relying solely on self-sacrificial label of FeMOF, rather than complex functional materials. Additionally, it has been well used in serum samples, showing attractive potential for practical applications.
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Affiliation(s)
- Liangliang Xiang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China
| | - Wenting Cheng
- Department of Clinical Laboratory, Nanjing Gaochun People's Hospital, Nanjing, 211300, PR China
| | - Jiakang Zhang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China
| | - Xiaoyue Li
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China
| | - Adeel Khan
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210000, PR China
| | - Yongxiang Yi
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China.
| | - Jinlong Li
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China.
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11
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Liu F, Liang F, Li Z, Kang G, Wang T, Chen C, Lu Y. Fluorescence detection of 4-nitrophenol and α-glucosidase activity based on 4-nitrophenol-regulated fluorescence of silicon nanoparticles. Analyst 2023; 148:4030-4036. [PMID: 37497732 DOI: 10.1039/d3an00966a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
A fluorescence assay for the detection of 4-nitrophenol (4-NP), α-glucosidase (α-Glu) activity and α-Glu inhibitors (AGIs) is developed based on the inner filter effect (IFE), a flexible and simple signal transfer strategy. In this assay, silicon nanoparticles (Si NPs) synthesized under mild and easily accessible conditions are employed as fluorescent indicators. 4-NP efficaciously quenches the fluorescence of Si NPs through the IFE at a very rapid rate, thus achieving 4-NP detection in a mix-to-read manner, which is suitable for on-site detection. The quenching mechanism has been comprehensively studied and confirmed. More significantly, based on the fact that 4-NP can be generated through α-Glu-catalyzed hydrolysis of 4-nitrophenyl-α-D-glucopyranoside (NPG), the fluorescence detection of α-Glu activity is legitimately achieved by employing NPG as the substrate. The linear ranges for 4-NP and α-Glu activity detection are 0.5-60 μM and 0.5-60 mU mL-1 with low detection limits of 0.074 μM and 0.094 mU mL-1, respectively. This method not only can preciously assay targets in real samples, but is also capable of screening AGIs as drugs as well as assessing their inhibition efficiency.
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Affiliation(s)
- Fangning Liu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Fan Liang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Zhe Li
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Ge Kang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Tingting Wang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Chuanxia Chen
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
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12
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Geng X, Xue R, Teng S, Fan W, Wang G, Li J, Liu Y, Huang Z, Yang W. Guar gum-enhanced emission of gold nanoclusters for α-glucosidase activity detection and anti-diabetic agents screening in plant extracts. Anal Chim Acta 2023; 1267:341393. [PMID: 37257966 DOI: 10.1016/j.aca.2023.341393] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 06/02/2023]
Abstract
The development of efficient fluorescent methods for α-glucosidase (α-Glu) detection and α-Glu inhibitor screening plays a critical role in the therapy of type 2 diabetes (T2D). Herein, guar gum (GG), a high-abundant and non-toxic natural polymer originated from the seeds of a drought-tolerant plant, Cyamposis tetragonolobus, was found to be able to enhance the fluorescence emission of gold nanoclusters (AuNCs) probe. The emission enhancement effect was achieved by using GG at very low concentrations (<1.0 wt%) and presented in a viscosity-dependent manner through increasing solvent reorientation time and inhibiting intramolecular motions of AuNCs. Furthermore, the enhanced emission of the AuNCs was quenched by Fe3+via dynamic quenching and then restored by α-Glu. Accordingly, a fluorimetric method was proposed for the determination of α-Glu. Owing to the fluorescence enhancement effect of GG on the AuNCs probe, the detection limit of the approach was 0.13 U L-1 and the detection range was up to 5 orders of magnitude from 0.2 to 4000 U L-1, which was much better than most current α-Glu detection methods. The approach was further applied to α-Glu inhibitors screening from natural plant extracts, providing great prospects for the prevention and treatment of T2D.
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Affiliation(s)
- Xiaoyu Geng
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Ruisong Xue
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Shiyong Teng
- Department of Anesthesiology, First Hospital, Jilin University, Changchun, 130021, China
| | - Weiqiang Fan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Guanhua Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong, China
| | - Jinshuo Li
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Yanmei Liu
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Zhenzhen Huang
- College of Chemistry, Jilin University, Changchun, 130012, China.
| | - Wensheng Yang
- College of Chemistry, Jilin University, Changchun, 130012, China; Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
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13
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Liu F, Li Z, Kang G, Liu Z, Zhu S, He R, Zhang C, Chen C, Lu Y. Ratiometric sensing of α-glucosidase and its inhibitor based on MnO2 nanosheets promoted in-situ fluorescent reactions. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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14
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Recent advances in enzyme inhibition based-electrochemical biosensors for pharmaceutical and environmental analysis. Talanta 2022. [DOI: 10.1016/j.talanta.2022.124092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Sobhan A, Jia F, Kelso LC, Biswas SK, Muthukumarappan K, Cao C, Wei L, Li Y. A Novel Activated Biochar-Based Immunosensor for Rapid Detection of E. coli O157:H7. BIOSENSORS 2022; 12:908. [PMID: 36291044 PMCID: PMC9599117 DOI: 10.3390/bios12100908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/11/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
E. coli O157:H7, one of the major foodborne pathogens, can cause a significant threat to the safety of foods. The aim of this research is to develop an activated biochar-based immunosensor that can rapidly detect E. coli O157:H7 cells without incubation in pure culture. Biochar was developed from corn stalks using proprietary reactors and then activated using steam-activation treatment. The developed activated biochar presented an enhanced surface area of 830.78 m2/g. To develop the biosensor, the gold electrode of the sensor was first coated with activated biochar and then functionalized with streptavidin as a linker and further immobilized with biotin-labeled anti-E. coli polyclonal antibodies (pAbs). The optimum concentration of activated biochar for sensor development was determined to be 20 mg/mL. Binding of anti-E. coli pAbs with E. coli O157:H7 resulted in a significant increase in impedance amplitude from 3.5 to 8.5 kΩ when compared to an only activated biochar-coated electrode. The developed immunosensor was able to detect E. coli O157:H7 cells with a limit of detection of 4 log CFU/mL without incubation. Successful binding of E. coli O157:H7 onto an activated biochar-based immunosensor was observed on the microelectrode surface in scanning electron microscopy (SEM) images.
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Affiliation(s)
- Abdus Sobhan
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
- Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD 57007, USA
| | - Fei Jia
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
| | - Lisa Cooney Kelso
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
| | - Sonatan Kumar Biswas
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
| | | | - Changyong Cao
- Department of Mechanical & Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
- Advanced Platform Technology (APT) Center, Louis Stokes Cleveland VA Medical Center, Cleveland, OH 44106, USA
| | - Lin Wei
- Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD 57007, USA
| | - Yanbin Li
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
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16
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Yin C, Wu M, Liu T, Fu L, Sun Q, Chen L, Niu N. Turn-on fluorescent inner filter effect-based B,S,N co-doped carbon quantum dots and vanadium oxide nanoribbons for α-glucosidase activity detection. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Luo D, Zhang X, Li X, Zhen YY, Zeng X, Xiong Z, Zhang Y, Li H. Responsive Fluorescent Coumarin–Cinnamic Acid Conjugates for α-Glucosidase Detection. Front Chem 2022; 10:927624. [PMID: 35836679 PMCID: PMC9273884 DOI: 10.3389/fchem.2022.927624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 05/04/2022] [Indexed: 11/13/2022] Open
Abstract
α-Glucosidase is a potent drug target for treating type II diabetes mellitus. A great number of α-glucosidase inhibitors have been developed based on the molecular skeletons of bioactive natural products. However, efficient fluorescent probes for α-glucosidase detection are still limited, not to mention the probes with additional inhibitory functions. In this work, aiming for the enzyme’s highly specific detection, we designed and synthesized two environmentally sensitive fluorescent probes, namely, LD01 and LD02, respectively, based on conjugates of coumarin and cinnamic acid derivatives. We found a significant responsive emission enhancement upon LD02’s binding to α-glucosidase. These newly designed probes can act as a simple but efficient tool to evaluate the binding affinity of α-glucosidase to their inhibitors.
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Affiliation(s)
- Dong Luo
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
| | - Xin Zhang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
| | - Xiaoying Li
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
| | - Yi-Yu Zhen
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
| | - Xingyi Zeng
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
| | - Zhuang Xiong
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
- *Correspondence: Zhuang Xiong, ; Yinghui Zhang, ; Hongguang Li,
| | - Yinghui Zhang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, South China Institute of Large Animal Models for Biomedicine, Wuyi University, Jiangmen, China
- *Correspondence: Zhuang Xiong, ; Yinghui Zhang, ; Hongguang Li,
| | - Hongguang Li
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, China
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, South China Institute of Large Animal Models for Biomedicine, Wuyi University, Jiangmen, China
- *Correspondence: Zhuang Xiong, ; Yinghui Zhang, ; Hongguang Li,
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18
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Liu D, Tang J, Xu H, Yuan K, Aryee AA, Zhang C, Meng H, Qu L, Li Z. Split-aptamer mediated regenerable temperature-sensitive electrochemical biosensor for the detection of tumour exosomes. Anal Chim Acta 2022; 1219:340027. [DOI: 10.1016/j.aca.2022.340027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/11/2022] [Accepted: 05/29/2022] [Indexed: 02/08/2023]
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19
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Cheng W, Ma J, Tao Q, Adeel K, Xiang L, Liu D, Zhang Z, Li J. Demethylation of m1A assisted degradation of the signal probe for rapid electrochemical detection of ALKBH3 activity with practical applications. Talanta 2021; 240:123151. [PMID: 34942472 DOI: 10.1016/j.talanta.2021.123151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 12/03/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022]
Abstract
ALKBH3 is an important marker for early diagnosis and histopathological grading of prostate cancer. However, the lack of a rapid and sensitive method to quantify the enzyme's activity in the current time necessitates the development of a new quantitative assay. Herein, we first tried to quantitative assay for ALKBH3 activity using an electrochemical method based on the degradation of the signal probe due to alkyl group of the m1A removal by ALKBH3. A strong electrochemical signal can be obtained when the ferrocene (Fc) labeled dsDNAs with 1-methyladenine are immobilized on the electrode. In the presence of ALKBH3, the 3' blunt of DNA can be formed because of the removal of alkyl group of the Fc-DNA probe, which can be recognized and degraded by Exonuclease III (Exo III). As a result, the electrochemical signal produced by Fc greatly decreases, and the activity of ALKBH3 can be easily detected via changes in electrochemical signal. Quantitative analysis of ALKBH3 activity showed a wide detection range (0.1 and 20 ng/mL) and low detection limit (0.04 ng/mL). Furthermore, the method can be applied to detect 1-methyladenine through ALKBH3 in cell lysates and tissue samples, providing a new method for clinical detection of prostate cancer.
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Affiliation(s)
- Wenting Cheng
- Department of Clinical Laboratory, Nanjing Gaochun People's Hospital, Nanjing, 211300, PR China
| | - Jiehua Ma
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, PR China
| | - Qinfang Tao
- Department of Clinical Laboratory, Nanjing Gaochun People's Hospital, Nanjing, 211300, PR China
| | - Khan Adeel
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210000, PR China
| | - Liangliang Xiang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China
| | - Duxian Liu
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China
| | - Zhaoli Zhang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China
| | - Jinlong Li
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, PR China.
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20
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Nsanzamahoro S, Wang WF, Zhang Y, Wang CB, Shi YP, Yang JL. α-Glucosidase-Triggered Reaction for Fluorometric and Colorimetric Assays Based on the Formation of Silicon-Containing Nanoparticles. Anal Chem 2021; 93:15412-15419. [PMID: 34762397 DOI: 10.1021/acs.analchem.1c03210] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Designing analytical approaches for enzymatic activity monitoring with high sensitivity and selectivity is of critical value for the diagnosis of diseases and biomedical studies. In this study, we have created a facile one-step synthetic route to prepare orange-red color and yellow fluorescent silicon-containing nanoparticles (Si CNPs) by mixing 3(2-aminoethylamino) propyl (dimethoxymethylsilane) and hydroquinone (HQ) in an aqueous solution. Inspired by the HQ-regulated facile synthetic step and the generation of HQ from α-glucosidase (α-Glu)-catalyzed hydrolysis of 4-hydroxyphenyl-α-d-glucopyranosyl (4-HPαDG), we have designed a straightforward colorimetric and fluorometric α-Glu activity assay using a commercially available 4-HPαDG as the α-Glu substrate. Fluorescent and colorimetric assays for α-Glu activity measurement have been thereby established and exhibited detection limits as low as 0.0032 and 0.0046 U/mL, respectively. Under single excitation at 370 nm, the prepared Si CNPs emitted yellow fluorescence at 520 nm and exhibited an absorbance peak at 390 nm. In addition, the proposed approach reveals various advantages including easy operation, time-saving, and good anti-interference ability. Hence, it could improve the progress of fluorometric and colorimetric enzymatic activity assays with high sensitivity and simplicity. Moreover, the proposed approach was applied for α-Glu inhibitor screening, and its feasibility in real samples was measured by detecting the α-Glu activity in human serum samples.
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Affiliation(s)
- Stanislas Nsanzamahoro
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, P.R. China.,University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Wei-Feng Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, P.R. China
| | - Ying Zhang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, P.R. China
| | - Cheng-Bo Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, P.R. China
| | - Yan-Ping Shi
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, P.R. China
| | - Jun-Li Yang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources, Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Lanzhou 730000, P.R. China
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21
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Confining copper nanoclusters on exfoliation-free 2D boehmite nanosheets: Fabrication of ultra-sensitive sensing platform for α-glucosidase activity monitoring and natural anti-diabetes drug screening. Biosens Bioelectron 2021; 182:113198. [PMID: 33799024 DOI: 10.1016/j.bios.2021.113198] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/13/2021] [Accepted: 03/22/2021] [Indexed: 12/21/2022]
Abstract
α-Glucosidase (α-Glu) and its inhibitors play critical roles in diabetes therapy. Herein, a simple and ultra-sensitive fluorescence sensing approach was fabricated for α-Glu activity monitoring and natural inhibitor screening by electrostatically confining negatively charged glutathione-capped copper nanoclusters (GSH-CuNCs) on exfoliation-free and positively charged 2D boehmite (Boe) nanosheets. Boe significantly improved the fluorescence emission/stability of GSH-CuNCs and simultaneously led to an obvious blue-shift of the excitation peak of CuNCs from 365 nm to 330 nm. As a result, the fluorescence emission of Boe@GSH-CuNCs was efficiently quenched by 4-nitrophenyl-α-D-glucopyranoside (PNPG) with a maximum absorbance peak (λmax) at 310 nm via inner filter effect, and sequentially recovered by α-Glu through the hydrolysis of PNPG to p-nitrophenol (λmax = 410 nm). Accordingly, an ultra-sensitive fluorescence assay for the determination of α-Glu activity was proposed by using Boe@GSH-CuNCs as fluorescence probes. The detection limit of 0.43 U/L was achieved, which was lower than most of other α-Glu activity assays. Furthermore, this method was capable of screening α-Glu inhibitors originated from actinomycetes, peanut, sophora flower, celery, and orange as potential anti-diabetes drugs. Taken together, this work provided a promising strategy for clinical treatment of diabetes and discovery of anti-diabetes drugs.
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22
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Alacid Y, Martínez-Tomé MJ, Mateo CR. Reusable Fluorescent Nanobiosensor Integrated in a Multiwell Plate for Screening and Quantification of Antidiabetic Drugs. ACS APPLIED MATERIALS & INTERFACES 2021; 13:25624-25634. [PMID: 34043318 DOI: 10.1021/acsami.1c02505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A highly stable and reusable fluorescent multisample nanobiosensor for the detection of α-glucosidase inhibitors has been developed by coupling fluorescent liposomal nanoparticles based on conjugated polymers (L-CPNs) to the enzyme α-glucosidase, one of the main target enzymes in the treatment of type 2 diabetes. The mechanism of sensing is based on the fluorescence "turn-on" of L-CPNs by p-nitrophenol (PNP), the end product of the enzymatic hydrolysis of p-nitrophenyl-α-d-glucopyranoside. L-CPNs, composed of lipid vesicles coated with a blue-emitting cationic polyfluorene, were designed and characterized to obtain a good response to PNP. Two nanobiosensor configurations were developed in this study. In the first step, a single-sample nanobiosensor composed of L-CPNs and α-glucosidase entrapped in a sol-gel glass was developed in order to characterize and optimize the device. In the second part, the nanobiosensor was integrated and adapted to a multiwell microplate and the possibility of reusing it and performing multiple measurements simultaneously with samples containing different α-glucosidase inhibitors was investigated. Using super-resolution confocal microscopy, L-CPNs could be visualized within the sol-gel matrix, and the quenching of their fluorescence, induced by the substrate, was directly observed in situ. The device was also shown to be useful not only as a platform for screening of antidiabetic drugs but also for quantifying their presence. The latter application was successfully tested with the currently available drug, acarbose.
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Affiliation(s)
- Yolanda Alacid
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche, Universidad Miguel Hernández, Elche, 03202 Alicante, Spain
| | - María José Martínez-Tomé
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche, Universidad Miguel Hernández, Elche, 03202 Alicante, Spain
| | - C Reyes Mateo
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche, Universidad Miguel Hernández, Elche, 03202 Alicante, Spain
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23
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Li C, Zi Y, Xu D, Jiang D, Qu F, Zhao XE. A fluorescence strategy for monitoring α-glucosidase activity and screening its inhibitors from Chinese herbal medicines based on Cu nanoclusters with aggregation-induced emission. Anal Bioanal Chem 2021; 413:2553-2563. [PMID: 33575817 DOI: 10.1007/s00216-021-03214-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/12/2021] [Accepted: 02/02/2021] [Indexed: 10/22/2022]
Abstract
Herein, the self-assembly of 1-dodecanethiol-capped Cu nanoclusters (DT-Cu NCs) is obtained by annealing of dibenzyl ether solution of nanoclusters. These aggregates are composed of small clusters and emit a high level of aggregation-induced emission (AIE) in water. Based on the quenching effect of 4-nitrophenol (4-NP) on DT-Cu NCs, a fluorescence strategy is developed to monitor α-glucosidase (α-Glu) activity and screen its inhibitors from Chinese herbal medicines. 4-Nitrophenyl-α-D-glucopyranoside (NGP) is selected as the substrate, which is further hydrolyzed to yield 4-NP through the catalysis of α-Glu. The quenching efficiency is positively correlated to the concentration of α-Glu. Furthermore, the inhibitory effects of the extracts from four Chinese herbal medicines (i.e., the rind of Punica granatum L., Momordica grosvenorii Swingle., Crataegus pinnatifida Bge., and Lycium barbarum L.) on the α-Glu activity have been studied. The IC50 values of extracts from the rind of Punica granatum L. and Momordica grosvenorii Swingle are 0.23 and 0.37 g/L, respectively, so they show obvious inhibitory effects on α-Glu. The extracts of Crataegus pinnatifida Bge. and Lycium barbarum L. exhibit relatively weak inhibitory effects. Hence, the proposed strategy can be applicable for screening α-Glu inhibitors from Chinese herbal medicines. Last but not the least, by immobilizing DT-Cu NCs into agarose hydrogels in polyethylene tubes, a visual device is fabricated to screen α-Glu inhibitors with high throughput and sensitivity.
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Affiliation(s)
- Cong Li
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China.,Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China
| | - Yuqiu Zi
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China.,Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China
| | - Dawei Xu
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China.,Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China
| | - Dafeng Jiang
- Department of Physical and Chemical Testing, Shandong Center for Disease Control and Prevention, Jinan, 250014, Shandong, China
| | - Fei Qu
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China. .,Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China.
| | - Xian-En Zhao
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China. .,Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Jining, 272000, Shandong, China.
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Guo FN, Wang YT, Wu N, Feng LX, Zhang HC, Yang T, Wang JH. Carbon nitride nanoparticles as ultrasensitive fluorescent probes for the detection of α-glucosidase activity and inhibitor screening. Analyst 2021; 146:1016-1022. [PMID: 33295353 DOI: 10.1039/d0an02079f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In recent years, α-glucosidase inhibitors (AGIs) have played a significant role in the treatment of type II diabetes (T2D), so it is necessary to develop a reliable and sensitive method to find new AGIs. Herein, we establish a novel method based on fluorescent carbon nitride nanoparticles (CNNPs) for the sensitive detection of the activity of α-glucosidase (α-glu) and the screening of its inhibitors. A CNNP-based fluorescent probe is synthesized from green raw materials, urea and lysine, by a one-pot method. In the presence of α-glu, the substrate 4-nitrophenyl-α-d-glucopyranoside (pNPG) is hydrolyzed to generate 4-nitrophenol (pNP), leading to the fluorescence (FL) quenching of CNNPs due to the inner filter effect (IFE). On the other hand, the activity of α-glu is inhibited after the addition of AGIs, which turns on the FL of CNNPs. In this way, the detection of α-glu activity and the screening of AGIs are achieved. The linear range is 1.25-10.00 U L-1 with a limit of detection as low as 0.17 U L-1 and the IC50 values of two typical inhibitors (gallic acid and acarbose) are 813 μM and 465 μM, respectively. The CNNP probe is further applied for the determination of α-glu activity in human serum samples with satisfactory results.
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Affiliation(s)
- Feng-Na Guo
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China.
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25
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Yuan X, Sun Y, Zhao P, Zhao L, Xiong Z. Redox-induced target-dependent ratiometric fluorescence sensing strategy and logic gate operation for detection of α-glucosidase activity and its inhibitor. Dalton Trans 2021; 50:9426-9437. [PMID: 34132726 DOI: 10.1039/d1dt01299a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A target-dependent ratiometric fluorescence sensing strategy was designed and fabricated based on a redox reaction for highly sensitive detection of α-glucosidase (α-Glu) activity and its inhibitor. In this study, silicon quantum dots (SiQDs) with excellent optical properties and two-dimensional (2D) cobalt oxyhydroxide (CoOOH) nanosheets were successfully prepared and exploited for the detection of analytes. The CoOOH nanosheets are able to oxidize o-phenylenediamine (OPD), and the product 2,3-diaminophenazine (oxOPD) not only quenches the blue fluorescence of SiQDs (440 nm) by the inner filter effect (IFE) but also emits orange fluorescence (565 nm). α-Glu can catalytically hydrolyze l-ascorbic acid-2-O-α-d-glucopyranosyl (AA2G) to produce ascorbic acid (AA). The redox between AA and CoOOH could lead to the damage of CoOOH nanosheets, thereby inhibiting the oxidization of OPD and effectively preserving the fluorescence of SiQDs. Thus, ratiometric detection of α-Glu activity was achieved according to the AA-dependent dual-fluorescence signal responses. Under the optimal conditions, good linearity was obtained in the range of 0.01-6 U mL-1 with a detection limit of 0.004 U mL-1. The IC50 of α-Glu inhibitor acarbose was estimated to be 0.216 μM. The method provides high sensitivity and selectivity for the determination of α-Glu activity and its inhibitor, which has great application potential in clinical diagnosis and anti-diabetic drug screening. Furthermore, a logic gate analytical device was successfully established based on double fluorescence signals, which makes it possible to monitor α-Glu activity by intelligence equipment.
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Affiliation(s)
- Xucan Yuan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning 110016, P. R. China.
| | - Yi Sun
- Beijing Institute for Drug Control, 102206, P. R. China
| | - Pengfei Zhao
- Department of Clinical Pharmacy, Weifang People's Hospital, 151 Guangwen Street Kuiwen District, Weifang, Shandong 261031, P. R. China
| | - Longshan Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning 110016, P. R. China.
| | - Zhili Xiong
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning 110016, P. R. China.
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Suhito IR, Koo KM, Kim TH. Recent Advances in Electrochemical Sensors for the Detection of Biomolecules and Whole Cells. Biomedicines 2020; 9:15. [PMID: 33375330 PMCID: PMC7824644 DOI: 10.3390/biomedicines9010015] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
Electrochemical sensors are considered an auspicious tool to detect biomolecules (e.g., DNA, proteins, and lipids), which are valuable sources for the early diagnosis of diseases and disorders. Advances in electrochemical sensing platforms have enabled the development of a new type of biosensor, enabling label-free, non-destructive detection of viability, function, and the genetic signature of whole cells. Numerous studies have attempted to enhance both the sensitivity and selectivity of electrochemical sensors, which are the most critical parameters for assessing sensor performance. Various nanomaterials, including metal nanoparticles, carbon nanotubes, graphene and its derivatives, and metal oxide nanoparticles, have been used to improve the electrical conductivity and electrocatalytic properties of working electrodes, increasing sensor sensitivity. Further modifications have been implemented to advance sensor platform selectivity and biocompatibility using biomaterials such as antibodies, aptamers, extracellular matrix (ECM) proteins, and peptide composites. This paper summarizes recent electrochemical sensors designed to detect target biomolecules and animal cells (cancer cells and stem cells). We hope that this review will inspire researchers to increase their efforts to accelerate biosensor progress-enabling a prosperous future in regenerative medicine and the biomedical industry.
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Affiliation(s)
- Intan Rosalina Suhito
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (I.R.S.); (K.-M.K.)
| | - Kyeong-Mo Koo
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (I.R.S.); (K.-M.K.)
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (I.R.S.); (K.-M.K.)
- Integrative Research Center for Two-Dimensional Functional Materials, Institute of Interdisciplinary Convergence Research, Chung Ang University, Seoul 06974, Korea
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A colorimetric sensing strategy based on enzyme@metal-organic framework and oxidase-like IrO 2/MnO 2 nanocomposite for α-glucosidase inhibitor screening. Mikrochim Acta 2020; 187:675. [PMID: 33241461 DOI: 10.1007/s00604-020-04660-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 11/19/2020] [Indexed: 11/27/2022]
Abstract
A highly sensitive colorimetric sensing strategy based on enzyme@metal-organic framework (GAA@Cu-MOF) and IrO2/MnO2 nanocomposite was exploited innovatively for screening of α-glucosidase (GAA) inhibitors. IrO2/MnO2 nanocomposite exhibits excellent oxidase-mimicking activity which can directly catalyze the oxidation of 3,3,5,5,-tetramethylbenzidine (TMB) into a blue product with an absorption maximum at 652 nm. And GAA@Cu-MOF can decompose L-ascorbic acid-2-O-α-D-glucopyranosyl (AAG) to ascorbic acid (AA). The produced AA can destroy the IrO2/MnO2 nanocomposite and reduce its oxidase-like activity. However, the generation of AA is restricted when GAA inhibitors are added to the system, which allows the oxidase-like activity of the IrO2/MnO2 nanocomposite to be maintained. In view of this, a method for screening of GAA inhibitors was developed. In addition to enhancing the stability of GAA, the method can also effectively avoid the potential interference of H2O2 in the screening process of GAA inhibitors, which helps to improve the sensitivity of the method. Therefore, highly sensitive determination for acarbose and ascorbic acid are achieved with detection limits of 6.27 nM and 1.23 μM, respectively. The proposed method was successfully applied to screen potential GAA inhibitors from oleanolic acid derivatives. Graphical abstract.
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Chang M, Song T, Liu X, Lin Q, He B, Ren J. Cellulose-based Biosensor for Bio-molecules Detection in Medical Diagnosis: A Mini-Review. Curr Med Chem 2020; 27:4593-4612. [DOI: 10.2174/0929867327666200221145543] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/26/2018] [Accepted: 04/01/2019] [Indexed: 12/11/2022]
Abstract
Background::
Biosensors are widely applied for the detection of bio-molecules in blood
glucose , cholesterol, and gene. Cellulose as the most dominating natural polymer has attracted
more and more interest, especially in the field of medicine such as advanced medical diagnosis.
Cellulose could endow biosensors with improved biocompatibility, biodegradability and nontoxicity,
which could help in medical diagnosis. This mini-review summarizes the current development
of cellulose-based biosensors as well as their applications in medical diagnosis in recent
years.
Methods:
After reviewing recent years’ publications we can say that, there are several kinds of
cellulose used in biosensors including different cellulose derivatives, bacterial cellulose and nanocellulose.
Different types of cellulose-based biosensors, such as membrane, nano-cellulose and
others were briefly described in addition to the detection principle. Cellulose-based biosensors
were summarized as in the previous papers. The description of various methods used for preparing
cellulose-based biosensors was also provided.
Results:
Cellulose and its derivatives with their unique chemical structure proved to be versatile
materials providing a good platform for achieving immobilizing bioactive molecules in biosensors.
These cellulose-based biosensors possess various desirable properties such as accuracy, sensitivity,
convenience, low cost and fast response. Among them, cellulose paper-based biosensors
have the advantages of low cost and easy operation. Nano-cellulose has unique properties such as
a large aspect ratio, good dispersing ability and high absorption capacity.
Conclusion:
Cellulose displays a promising application in biosensors which could be used to detect
different bio-molecules such as glucose, lactate, urea, gene, cell, amino acid, cholesterol, protein
and hydroquinone. In future, the attention will be focused on designing miniaturized, multifunctional,
intelligent and integrated biosensors. Creation of low cost and environmentally
friendly biosensors is also very important.
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Affiliation(s)
- Minmin Chang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Tao Song
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xinxin Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Qixuan Lin
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Bei He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junli Ren
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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Debiais M, Lelievre A, Smietana M, Müller S. Splitting aptamers and nucleic acid enzymes for the development of advanced biosensors. Nucleic Acids Res 2020; 48:3400-3422. [PMID: 32112111 PMCID: PMC7144939 DOI: 10.1093/nar/gkaa132] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/12/2020] [Accepted: 02/18/2020] [Indexed: 12/16/2022] Open
Abstract
In analogy to split-protein systems, which rely on the appropriate fragmentation of protein domains, split aptamers made of two or more short nucleic acid strands have emerged as novel tools in biosensor set-ups. The concept relies on dissecting an aptamer into a series of two or more independent fragments, able to assemble in the presence of a specific target. The stability of the assembled structure can further be enhanced by functionalities that upon folding would lead to covalent end-joining of the fragments. To date, only a few aptamers have been split successfully, and application of split aptamers in biosensing approaches remains as promising as it is challenging. Further improving the stability of split aptamer target complexes and with that the sensitivity as well as efficient working modes are important tasks. Here we review functional nucleic acid assemblies that are derived from aptamers and ribozymes/DNAzymes. We focus on the thrombin, the adenosine/ATP and the cocaine split aptamers as the three most studied DNA split systems and on split DNAzyme assemblies. Furthermore, we extend the subject into split light up RNA aptamers used as mimics of the green fluorescent protein (GFP), and split ribozymes.
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Affiliation(s)
- Mégane Debiais
- Institut des Biomolécules Max Mousseron, University of Montpellier, CNRS, ENCSM, Montpellier, France
| | - Amandine Lelievre
- University Greifswald, Institute for Biochemistry, Greifswald, Germany
| | - Michael Smietana
- Institut des Biomolécules Max Mousseron, University of Montpellier, CNRS, ENCSM, Montpellier, France
| | - Sabine Müller
- University Greifswald, Institute for Biochemistry, Greifswald, Germany
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Zhang X, Li G, Wu D, Yu Y, Hu N, Wang H, Li X, Wu Y. Emerging strategies for the activity assay and inhibitor screening of alpha-glucosidase. Food Funct 2020; 11:66-82. [DOI: 10.1039/c9fo01590f] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The high incidence of diabetes mellitus has caused widespread concern around the world, and has quickly become one of the most prevalent and costly chronic diseases.
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Affiliation(s)
- Xianlong Zhang
- School of Food and Biological Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| | - Guoliang Li
- School of Food and Biological Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
- Key Laboratory of Life-Organic Analysis of Shandong Province
| | - Di Wu
- Yangtze Delta Region Institute of Tsinghua University
- China
| | - Yanxin Yu
- School of Food and Biological Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| | - Na Hu
- Key Laboratory of Tibetan Medicine Research & Qinghai Provincial Key Laboratory of Tibetan Medicine Research
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Xining 810001
- China
| | - Honglun Wang
- Key Laboratory of Tibetan Medicine Research & Qinghai Provincial Key Laboratory of Tibetan Medicine Research
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Xining 810001
- China
| | - Xiuting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- Beijing Technology and Business University
- Beijing 100048
- China
| | - Yongning Wu
- Key Laboratories of Chemical Safety and Health
- China National Center for Food Safety Risk Assessment
- Beijing 100050
- China
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31
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A highly sensitive electrochemical sensor based on DNA Y-Junction for detection of estrogen receptor using target protein protection strategy. Anal Chim Acta 2019; 1086:110-115. [DOI: 10.1016/j.aca.2019.08.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/30/2019] [Accepted: 08/12/2019] [Indexed: 12/16/2022]
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The determination of α-glucosidase activity through a nano fluorescent sensor of F-PDA−CoOOH. Anal Chim Acta 2019; 1080:170-177. [DOI: 10.1016/j.aca.2019.07.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 07/05/2019] [Accepted: 07/06/2019] [Indexed: 12/20/2022]
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Zhong Y, Yu L, He Q, Zhu Q, Zhang C, Cui X, Zheng J, Zhao S. Bifunctional Hybrid Enzyme-Catalytic Metal Organic Framework Reactors for α-Glucosidase Inhibitor Screening. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32769-32777. [PMID: 31423772 DOI: 10.1021/acsami.9b11754] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The screening strategy based on α-glucosidase inhibition has been widely employed for the discovery of antidiabetic drugs, but it still faces some challenges in practical applications, such as poor stability of enzyme, high consumption of test compounds, low sensitivity of screening methods and so on. In this work, a bifunctional hybrid enzyme-catalytic metal organic framework reactor (GAA@GOx@Cu-MOF) with a flower-shaped globular structure was innovatively prepared via self-assembling of α-glucosidase (GAA), glucose oxidase (GOx), Cu2+, and 4,4'-bipyridine. It was found that GAA@GOx@Cu-MOF not only enjoyed merits of high stability, selectivity, and sensitivity but also possessed the character of assembly line work, with about 4.58 times enhanced enzyme activity compared with the free enzyme system. Based on the above characteristics, a highly sensitive screening of GAA inhibitors could be achieved with the detection limit of 7.05 nM for acarbose. Furthermore, the proposed method was successfully applied to the screening of oleanolic acid derivatives as potential antidiabetic drugs. Therefore, it was expected that this work could provide new insights and inspirations for the screening of clinical antidiabetic drugs and for further exploration of functional MOF composites.
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Affiliation(s)
- Yingying Zhong
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
| | - Linjin Yu
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
| | - Qiyi He
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
| | - Qiuyan Zhu
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
| | - Chunguo Zhang
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
| | - Xiping Cui
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
| | - Junxia Zheng
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , People's Republic of China
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Li J, Hu K, Zhang Z, Teng X, Zhang X. Click DNA cycling in combination with gold nanoparticles loaded with quadruplex DNA motifs enable sensitive electrochemical quantitation of the tuberculosis-associated biomarker CFP-10 in sputum. Mikrochim Acta 2019; 186:662. [PMID: 31473812 DOI: 10.1007/s00604-019-3780-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 08/21/2019] [Indexed: 11/25/2022]
Abstract
An electrochemical aptamer-based assay is described for the determination of CFP-10 which is an early secretary biomarker of Mycobacterium tuberculosis. CFP-10 is specifically captured by its aptamer and then induces a DNA cross-linking click reaction, the release of CFP-10, and an amplification cycle of repeated CFP-10 release. This mechanism (with dual amplification via DNA click and target release cycle) causes more and more CFP-10 Apt strands on the electrode surface to expose their 5' overhang and to hybridize with the DNA complexes linked to the gold nanoparticles (AuNPs). Consequently, large amounts of AuNPs, each loaded with a number of quadruplex DNA motifs, can be bound on the electrode surface and remarkably enhance the signal. Under optimal conditions, the method has a detection limit as low as 10 pg.mL-1 of CFP-10. The method was successfully applied to the diagnosis of M. tuberculosis in sputum. Graphical abstract Schematic representation of an electrochemical CFP-10 (10-kDa culture filtrate protein) assay using click DNA cycling in combination with gold nanoparticles loaded with quadruplex DNA motifs. Click chemistry reaction between Dibenzocyclooctyne (DBCO)-DNA and azido-DNA can liberate the CFP-10 antigen for the next cycle, which can be viewed as the first amplification step. G-quadruplex-based DNAzyme is formed due to the guanine-rich sequences of DNA S1, which can be viewed as the second amplification step.
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Affiliation(s)
- Jinlong Li
- Department of Laboratory Medicine, the Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, People's Republic of China.
| | - Kai Hu
- Department of ophthalmology, the Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210004, People's Republic of China
| | - Zhaoli Zhang
- Department of Laboratory Medicine, the Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, People's Republic of China
| | - Xiaoyan Teng
- Department of Laboratory Medicine, the Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, People's Republic of China
| | - Xia Zhang
- Department of Tuberculosis, the Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, 210003, People's Republic of China.
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, People's Republic of China.
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Nameghi MA, Danesh NM, Ramezani M, Alibolandi M, Abnous K, Taghdisi SM. An ultrasensitive electrochemical sensor for 17β-estradiol using split aptamers. Anal Chim Acta 2019; 1065:107-112. [DOI: 10.1016/j.aca.2019.02.062] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 12/22/2022]
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Sato RH, Kosaka PM, Omori ÁT, Ferreira EA, Petri DFS, Malvar Ó, Domínguez CM, Pini V, Ahumada Ó, Tamayo J, Calleja M, Cunha RLOR, Fiorito PA. Development of a methodology for reversible chemical modification of silicon surfaces with application in nanomechanical biosensors. Biosens Bioelectron 2019; 137:287-293. [PMID: 31125818 DOI: 10.1016/j.bios.2019.04.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/09/2019] [Accepted: 04/14/2019] [Indexed: 10/26/2022]
Abstract
Hypervalent tellurium compounds have a particular reactivity towards thiol compounds which are related to their biological properties. In this work, this property was assembled to tellurium-functionalized surfaces. These compounds were used as linkers in the immobilization process of thiolated biomolecules (such as DNA) on microcantilever surfaces. The telluride derivatives acted as reversible binding agents due to their redox properties, providing the regeneration of microcantilever surfaces and allowing their reuse for further biomolecules immobilizations, recycling the functional surface. Initially, we started from the synthesis of 4-((3-((4-methoxyphenyl) tellanyl) phenyl) amino)-4-oxobutanoic acid, a new compound, which was immobilized on a silicon surface. In nanomechanical systems, the detection involved a hybridization study of thiolated DNA sequences. Fluorescence microscopy technique was used to confirm the immobilization and removal of the telluride-DNA system and provided revealing results about the potentiality of applying redox properties to chalcogen derivatives at surfaces.
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Affiliation(s)
- Roseli H Sato
- CCNH, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, UFABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Priscila M Kosaka
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Álvaro T Omori
- CCNH, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, UFABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Edgard A Ferreira
- Escola de Engenharia, Universidade Presbiteriana Mackenzie, 01302-907, São Paulo, SP, Brazil
| | - Denise F S Petri
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, P.O. Box 26077, São Paulo, SP, 05513-970, Brazil
| | - Óscar Malvar
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Carmen M Domínguez
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Valerio Pini
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Óscar Ahumada
- Mecwins S.A, Plaza de la Encina 10-11, Núcleo 5, 2 B, 28760, Tres Cantos, Madrid, Spain
| | - Javier Tamayo
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Montserrat Calleja
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Rodrigo L O R Cunha
- CCNH, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, UFABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Pablo A Fiorito
- Centro de Investigaciones y Transferencia Villa María (CIT VM - CONICET), Instituto de Ciencias Básicas y Aplicadas, Universidad Nacional de Villa María, Av. Arturo Jauretche 1555, Villa María, C.P, 5900, Córdoba, Argentina.
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Huang S, Yang E, Yao J, Liu Y, Xiao Q. Carbon dots doped with nitrogen and boron as ultrasensitive fluorescent probes for determination of α-glucosidase activity and its inhibitors in water samples and living cells. Mikrochim Acta 2018; 185:394. [PMID: 30056511 DOI: 10.1007/s00604-018-2932-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/23/2018] [Indexed: 12/30/2022]
Abstract
An ultrasensitive fluorometric assay is described for the determination of the activity of the enzyme α-glucosidase in waters and living cells. Carbon dots doped with nitrogen and boron (N,B-CDs) were prepared that have excitation/emission peaks at 400/510 nm and a fluorescence quantum yield of 47%. 4-Nitrophenylglucoside is added and then hydrolyzed by α-glucosidase to form yellow 4-nitrophenol which screens off fluorescence due to an inner filter effect. The method was applied to the determination of α-glucosidase activity and has a 3 mU mL-1 detection limit. It was subsequently applied to the determination of the α-glucosidase inhibitor acarbose which can be determined in a concentration as low as 10 nM (at three times the standard deviation versus slope). The method was also applied to the determination of α-glucosidase activity and acarbose in living HeLa cells and MCF-7 cells. The method is simple, sensitive, and excellently selective. Graphical abstract N,B-CDs as ultrasensitive fluorescence probe for α-glucosidase activity and its inhibitor in waters and living cells based on IFE.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Erli Yang
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
| | - Jiandong Yao
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China
| | - Yi Liu
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Qi Xiao
- College of Chemistry and Materials Science, Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Guangxi Teachers Education University, Nanning, 530001, People's Republic of China. .,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China.
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