1
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Canbay E, Sezer E, Canda E, Yazıcı H, Kalkan Uçar S, Çoker M, Yildirim Sözmen E. Development of a New Amperometric Biosensor for Measurement of Plasma Galactose Levels. ACS OMEGA 2024; 9:7621-7633. [PMID: 38405530 PMCID: PMC10882682 DOI: 10.1021/acsomega.3c06789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 02/27/2024]
Abstract
Galactosemia is an inherited disease that occurs as a result of insufficient or no synthesis of some enzymes (GALT, GALK, and GALE) in galactose metabolism. Failure to make an early diagnosis, especially in newborns, can lead to severe clinical and even fatal consequences. The aim of this study is to develop a biosensor for measuring free galactose in plasma. The immobilization components of the developed free galactose biosensor are screen printed carbon electrode (SCPE), Prussian blue (PB), chitosan (CHIT), Nafion (NAF), gold nanoparticle (GNP), and galactose oxidase (GaOX). The CHIT/GaOX/NAF-GNP/GaOX/CHIT-GNP/SCPE-PB electrode showed a sensitive amperometric response to detect galactose. While the surface characterization of the biosensor was performed with cyclic voltammetry and scanning electron microscopy, the optimization and performance characterizations were made by applying an amperometry technique. The amperometric operating potential for the free galactose biosensor was determined as -0.05 V. The linear detection range for the free galactose biosensor is between 0.025 and 10 mM. This range includes galactose levels in plasma of both healthy and patients. The percent coefficient of variation values calculated for intraday and interday repeatability of the developed biosensor are below 10%. The practical use of the biosensor, for which optimization and characterization studies were carried out, was tested in 10 healthy 11 patients with galactosemia, and the results were compared with the colorimetric method. In conclusion, the unique analytical properties and effortless preparation of the new galactose biosensor developed in this study make them serious candidates for point-of-care diagnostic testing.
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Affiliation(s)
- Erhan Canbay
- Department
of Medical Biochemistry, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkey
| | - Ebru Sezer
- Department
of Medical Biochemistry, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkey
| | - Ebru Canda
- Department
of Pediatric Metabolic Disease, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkiye
| | - Havva Yazıcı
- Department
of Pediatric Metabolic Disease, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkiye
| | - Sema Kalkan Uçar
- Department
of Pediatric Metabolic Disease, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkiye
| | - Mahmut Çoker
- Department
of Pediatric Metabolic Disease, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkiye
| | - Eser Yildirim Sözmen
- Department
of Medical Biochemistry, Faculty of Medicine, Ege University, Bornova, Izmir 35100, Turkey
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2
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Xiong Y, Wang C, Wu Y, Luo C, Zhan D, Wang S. Electrochemical Enzyme Sensor Based on the Two-Dimensional Metal-Organic Layers Supported Horseradish Peroxidase. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238599. [PMID: 36500690 PMCID: PMC9739674 DOI: 10.3390/molecules27238599] [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: 10/08/2022] [Revised: 11/05/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Metal-organic frames (MOFs) have recently been used to support redox enzymes for highly sensitive and selective chemical sensors for small biomolecules such as oxygen (O2), hydrogen peroxide (H2O2), etc. However, most MOFs are insulative and their three-dimensional (3D) porous structures hinder the electron transfer pathway between the current collector and the redox enzyme molecules. In order to facilitate electron transfer, here we adopt two-dimensional (2D) metal-organic layers (MOLs) to support the HRP molecules in the detection of H2O2. The correlation between the current response and the H2O2 concentration presents a linear range from 7.5 μM to 1500 μM with a detection limit of 0.87 μM (S/N = 3). The sensitivity, reproducibility, and stability of the enzyme sensor are promoted due to the facilitated electron transfer.
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Affiliation(s)
- Yu Xiong
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chao Wang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - YuanFei Wu
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chunhua Luo
- The First College of Clinical Medical Science, China Three Gorges University, Yichang 443003, China
- Correspondence: (C.L.); (S.W.)
| | - Dongping Zhan
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shizhen Wang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Correspondence: (C.L.); (S.W.)
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3
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Lu D, Liu D, Wang X, Liu Y, Liu Y, Ren R, Pang G. Kinetics of Drug Molecule Interactions with a Newly Developed Nano-Gold-Modified Spike Protein Electrochemical Receptor Sensor. BIOSENSORS 2022; 12:888. [PMID: 36291025 PMCID: PMC9599096 DOI: 10.3390/bios12100888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
In March 2020, the World Health Organization (WHO) declared COVID-19 a pandemic, and the spike protein has been reported to be an important drug target for anti-COVID-19 treatment. As such, in this study, we successfully developed a novel electrochemical receptor biosensor by immobilizing the SARS-CoV-2 spike protein and using AuNPs-HRP as an electrochemical signal amplification system. Moreover, the time-current method was used to quantify seven antiviral drug compounds, such as arbidol and chloroquine diphosphate. The results show that the spike protein and the drugs are linearly correlated within a certain concentration range and that the detection sensitivity of the sensor is extremely high. In the low concentration range of linear response, the kinetics of receptor-ligand interactions are similar to that of an enzymatic reaction. Among the investigated drug molecules, bromhexine exhibits the smallest Ka value, and thus, is most sensitively detected by the sensor. Hydroxychloroquine exhibits the largest Ka value. Molecular docking simulations of the spike protein with six small-molecule drugs show that residues of this protein, such as Asp, Trp, Asn, and Gln, form hydrogen bonds with the -OH or -NH2 groups on the branched chains of small-molecule drugs. The electrochemical receptor biosensor can directly quantify the interaction between the spike protein and drugs such as abidor and hydroxychloroquine and perform kinetic studies with a limit of detection 3.3 × 10-20 mol/L, which provides a new research method and idea for receptor-ligand interactions and pharmacodynamic evaluation.
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Affiliation(s)
- Dingqiang Lu
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China
- Tianjin Key Laboratory of Food Biotechnology, Tianjin 300134, China
| | - Danyang Liu
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Xinqian Wang
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Yujiao Liu
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Yixuan Liu
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China
| | - Ruijuan Ren
- Tianjin Institute for Food Safety Inspection Technology, Tianjin 300134, China
| | - Guangchang Pang
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China
- Tianjin Key Laboratory of Food Biotechnology, Tianjin 300134, China
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4
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Wang X, Lu D, Liu Y, Wang W, Ren R, Li M, Liu D, Liu Y, Liu Y, Pang G. Electrochemical Signal Amplification Strategies and Their Use in Olfactory and Taste Evaluation. BIOSENSORS 2022; 12:bios12080566. [PMID: 35892464 PMCID: PMC9394270 DOI: 10.3390/bios12080566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/20/2022] [Accepted: 07/24/2022] [Indexed: 05/07/2023]
Abstract
Biosensors are powerful analytical tools used to identify and detect target molecules. Electrochemical biosensors, which combine biosensing with electrochemical analysis techniques, are efficient analytical instruments that translate concentration signals into electrical signals, enabling the quantitative and qualitative analysis of target molecules. Electrochemical biosensors have been widely used in various fields of detection and analysis due to their high sensitivity, superior selectivity, quick reaction time, and inexpensive cost. However, the signal changes caused by interactions between a biological probe and a target molecule are very weak and difficult to capture directly by using detection instruments. Therefore, various signal amplification strategies have been proposed and developed to increase the accuracy and sensitivity of detection systems. This review serves as a reference for biosensor and detector research, as it introduces the research progress of electrochemical signal amplification strategies in olfactory and taste evaluation. It also discusses the latest signal amplification strategies currently being employed in electrochemical biosensors for nanomaterial development, enzyme labeling, and nucleic acid amplification techniques, and highlights the most recent work in using cell tissues as biosensitive elements.
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Affiliation(s)
- Xinqian Wang
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Dingqiang Lu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
- Correspondence: (D.L.); (G.P.)
| | - Yuan Liu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.L.); (W.W.)
| | - Wenli Wang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.L.); (W.W.)
| | - Ruijuan Ren
- Tianjin Institute for Food Safety Inspection Technology, Tianjin 300308, China;
| | - Ming Li
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Danyang Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Yujiao Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Yixuan Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Guangchang Pang
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
- Correspondence: (D.L.); (G.P.)
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5
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Fan Y, Huang Y, Zhang N, Chen G, Jiang S, Zhang Y, Pang G, Wang W, Liu Y. Study on the distribution of umami receptors on the tongue and its signal coding logic based on taste bud biosensor. Biosens Bioelectron 2022; 197:113780. [PMID: 34801794 DOI: 10.1016/j.bios.2021.113780] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/30/2021] [Accepted: 11/08/2021] [Indexed: 02/08/2023]
Abstract
Taste signals are uniformly encoded and transmitted to the brain's taste center by taste buds, and the process has not been systematically studied for several decades. The aim of this work was to investigate the distribution of umami receptors on the tongue and its signal coding logic based on the taste bud biosensors. Taste bud biosensors were constructed by immobilizing the taste bud tissues from different tongue regions of the rabbit to the glassy carbon electrode surface; The Shennong information equations were used to analysis the pattern of umami receptors to encode ligands information; The signal amplification capabilities of two types umami receptors (T1R1/T1R3 and mGluRs) were analyzed for the two ligands (L-monosodium glutamate (MSG) and disodium 5'-inosinate (IMP)). The results showed that each taste bud biosensor could sense MSG and IMP with different response currents based on enzyme-substrate kinetics. There was only a small fraction of a great quantity of metabotropic glutamate receptors (mGluRs) could be activated to encode MSG signal. Importantly, T1R1 was more expressed in the rostral tongue cells whose sensitivity to MSG was nearly 100 times stronger than that of caudal tongue cells. The method we proposed made it possible to reveal the distribution and signals coding logic of umami receptors for ligands, which showed great potential to explain the interaction mechanism of umami substances with their receptors more accurately and to develop of artificial intelligent taste sensory.
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Affiliation(s)
- Yuxia Fan
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yulin Huang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Ninglong Zhang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Gaole Chen
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shui Jiang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu, 610106, China
| | - Guangchang Pang
- Biotechnology & Food Science College, Tianjin University of Commerce, Tianjin, 300134, China
| | - Wenli Wang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Yuan Liu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
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6
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Tunca K, Öztürk F, Erden PE. A Comparison of Four Different Electrode Matrices on the Performance of Amperometric Hydrogen Peroxide (Bio)Sensors. ELECTROANAL 2022. [DOI: 10.1002/elan.202100469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kubilay Tunca
- Department of Chemistry Faculty of Science and Arts Tekirdağ Namık Kemal University 59030 Tekirdağ Turkey
| | - Funda Öztürk
- Department of Chemistry Faculty of Science and Arts Tekirdağ Namık Kemal University 59030 Tekirdağ Turkey
| | - Pınar Esra Erden
- Department of Chemistry Polatlı Faculty of Science and Letters Ankara Hacı Bayram Veli University 06900 Ankara Turkey
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7
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The Lysozyme Inhibitor Thionine Acetate Is Also an Inhibitor of the Soluble Lytic Transglycosylase Slt35 from Escherichia coli. Molecules 2021; 26:molecules26144189. [PMID: 34299465 PMCID: PMC8307938 DOI: 10.3390/molecules26144189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 11/18/2022] Open
Abstract
Lytic transglycosylases such as Slt35 from E. coli are enzymes involved in bacterial cell wall remodelling and recycling, which represent potential targets for novel antibacterial agents. Here, we investigated a series of known glycosidase inhibitors for their ability to inhibit Slt35. While glycosidase inhibitors such as 1-deoxynojirimycin, castanospermine, thiamet G and miglitol had no effect, the phenothiazinium dye thionine acetate was found to be a weak inhibitor. IC50 values and binding constants for thionine acetate were similar for Slt35 and the hen egg white lysozyme. Molecular docking simulations suggest that thionine binds to the active site of both Slt35 and lysozyme, although it does not make direct interactions with the side-chain of the catalytic Asp and Glu residues as might be expected based on other inhibitors. Thionine acetate also increased the potency of the beta-lactam antibiotic ampicillin against a laboratory strain of E. coli.
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8
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Theyagarajan K, Yadav S, Satija J, Thenmozhi K, Senthilkumar S. Gold Nanoparticle-Redox Ionic Liquid based Nanoconjugated Matrix as a Novel Multifunctional Biosensing Interface. ACS Biomater Sci Eng 2020; 6:6076-6085. [PMID: 33449637 DOI: 10.1021/acsbiomaterials.0c00807] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Creation of interfaces with a prudent design for the immobilization of biomolecules is substantial in the construction of biosensors for real-time monitoring. Herein, an adept biosensing interface was developed using a nanoconjugated matrix and has been employed toward the electrochemical determination of hydrogen peroxide (H2O2). The anionic gold nanoparticle (AuNP) was electrostatically tethered to cationic redox ionic liquid (IL), to which the horseradish peroxidase (HRP) enzyme was covalently immobilized to form a nanobioconjugate. The anthracene-substituted, aldehyde-functionalized redox IL (CHO-AIL) was judiciously designed with the (i) imidazolium cation for electrostatic interaction with AuNPs, (ii) anthracene moiety to mediate the electron transfer, and (iii) free aldehydic group for covalent bonding with a free amine group of the enzyme. Thus, the water-soluble HRP is effectively bonded to the CHO-AIL on a glassy carbon electrode (GCE) via imine bond formation, which resulted in the formation of the HRP-CHO-AIL/GCE. Electrochemical investigations on the HRP-CHO-AIL/GCE reveal highly stable and distinct redox peaks for the anthracene/anthracenium couple at a formal potential (E°') of -0.47 V. Electrostatic tethering of anionic AuNPs to the HRP-CHO-AIL promotes the electron transfer process in the HRP-CHO-AIL/AuNPs/GCE, as observed by the reduction in the formal potential to -0.42 V along with the enhancement in peak currents. The HRP-CHO-AIL/AuNPs/GCE has been explored toward the electrocatalytic detection of H2O2, and the modified electrode demonstrated a linear response toward H2O2 in the concentration range of 0.02-2.77 mM with a detection limit of 3.7 μM. The developed biosensor ascertained predominant selectivity and sensitivity in addition to remarkable stability and reproducibility, corroborating the suitableness of the platform for the effectual biosensing of H2O2. The eminent performance realized with our biosensor setup is ascribed to the multifunctional efficacy of this newly designed nanobioconjugate.
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Affiliation(s)
- Kandaswamy Theyagarajan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore 632014, India
| | - Sangeeta Yadav
- School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, India.,Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore 632014, India
| | - Jitendra Satija
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore 632014, India
| | - Kathavarayan Thenmozhi
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore 632014, India
| | - Sellappan Senthilkumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore 632014, India
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Peng D, Lu D, Pang G. Study on FcγRn Electrochemical Receptor Sensor and Its Kinetics. Molecules 2020; 25:E3206. [PMID: 32674374 PMCID: PMC7397135 DOI: 10.3390/molecules25143206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 11/16/2022] Open
Abstract
Neonatal γ-immunoglobulin (IgG) Fc receptor (FcγRn) is a receptor that transports IgG across the intestinal mucosa, placenta, and mammary gland, ensuring the balance of IgG and albumin in the body. These functions of FcγRn depend on the intracellular signal transduction and activation caused by the combination of its extracellular domain and IgG Fc domain. Nevertheless, there are still no kinetic studies on this interaction. Consequently, in the present study, we successfully constructed the human FcγRn (hFcγRn) electrochemical receptor sensor. The signal amplification system formed by chitosan nanogold-hFcγRn protein and horseradish peroxidase was used to simulate the cell signal amplification system in vivo, and the kinetic effects between seven IgG and hFcγRn receptors from different species were quantitatively measured. The results showed that the interaction of these seven IgGs with hFcγRn was similar to the catalytic kinetics of enzyme and substrate, and there was a ligand-receptor saturation effect. The order of the interconnect allosteric constants (Ka), which is similar to the Michaelis constant (Km), was human IgG < bovine IgG < horse IgG < rabbit IgG < sheep IgG < donkey IgG < quail IgY. The results showed that hFcγRn had the strongest ability to transport human IgG, which was consistent with the evolution of the system. Therefore, our hFcγRn electrochemical receptor sensor can be used to measure and evaluate the interconnected allosteric network. It is also an essential parameter of the interaction between hFcγRn and different IgGs and, thus, provides a new detection and evaluation method for immunoemulsion, therapeutic monoclonal antibody therapy, heteroantibody treatment, and half-life research.
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Affiliation(s)
- Dandan Peng
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300314, China;
| | - Dingqiang Lu
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300314, China;
- Tianjin Key Laboratory of Food Biotechnology, Tianjin University of Commerce, Tianjin 300314, China
| | - Guangchang Pang
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300314, China;
- Tianjin Key Laboratory of Food Biotechnology, Tianjin University of Commerce, Tianjin 300314, China
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Development of a new and simple method for the detection of histidine-tagged proteins based on thionine-chitosan/gold nanoparticles/horseradish peroxidase. Biomed Microdevices 2020; 22:11. [DOI: 10.1007/s10544-019-0464-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Yang S, Bai C, Teng Y, Zhang J, Peng J, Fang Z, Xu W. Study of horseradish peroxidase and hydrogen peroxide bi-analyte sensor with boronate affinity-based molecularly imprinted film. CAN J CHEM 2019. [DOI: 10.1139/cjc-2019-0134] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel electrochemical horseradish peroxidase (HRP) sensor was developed based on boronate affinity-based electropolymerized polythionine (PTh) molecularly imprinted polymer (MIP) as specific recognition element for HRP on gold nanoparticles (AuNPs) modified glassy carbon electrode, in which PTh acted as the electrochemical probe for the sensor. The sensor was characterized by scanning electron microscopy and electron dispersive spectroscopy. Electrochemical impedance spectroscopy, cyclic voltammetry, and differential pulse voltammetry were exploited for the study of the properties of the MIP sensor. The MIP sensor exhibited excellent linear response over the range of 2.0 × 10−10 mg/mL ∼ 1.0 × 10−7 mg/mL for HRP. In addition, with MIP film as HRP immobilized matrices, the sensor for the detection of H2O2 was developed with the MIP sensor based on the reduction of H2O2 catalyzed by HRP in the presence of electron mediator PTh. The sensor showed linear relationships between the current response and H2O2 concentration from 6.0 × 10−7 to 2.0 × 10−5 mol/L. HRP and H2O2 bi-analyte sensor based on MIP film was successfully developed in this work. The developed method can also be applicable for enzyme and its enzymatic substrate bi-analyte sensor.
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Affiliation(s)
- Shaoming Yang
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
| | - Chaopeng Bai
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
| | - Yu Teng
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
| | - Jian Zhang
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
| | - Jiaxi Peng
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
| | - Zhili Fang
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
| | - Wenyuan Xu
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, Jiangxi 330013, China
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Guarin-Guio PA, Cano-Calle HDJ, Castillo-León JJ. Detección electroquímica de peróxido de hidrógeno usando peroxidasa de pasto Guinea (Panicum maximum) inmovilizada sobre electrodos serigrafiados de puntos cuánticos. REVISTA ION 2019. [DOI: 10.18273/revion.v32n2-2019007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Los biosensores electroquímicos son herramientas analíticas de rápida y confiable respuesta que han adquirido especial interés en los últimos años gracias a la posibilidad de integrar biomoléculas con electrodos hechos a base de materiales nanométricos. En este trabajo se desarrolló un biosensor electroquímico para detección de peróxido de hidrógeno (H2O2) usando peroxidasa de pasto Guinea (PPG) inmovilizada sobre electrodos serigrafiados de puntos cuánticos (ESPC). La PPG fue aislada y parcialmente purificada a partir de hojas de pasto Guinea con una actividad específica de 602 U mg-1. Posteriormente, la PPG fue inmovilizada sobre la superficie del ESPC mediante adsorción física y el estudio del comportamiento electroquímico fue llevado a cabo mediante voltamperometría cíclica y cronoamperometría. La PPG reveló una pareja bien definida de señales redox a 17 mV/-141 mV correspondientes al proceso redox del grupo hemo (Fe2+/Fe3+) de las peroxidasas. La reducción bioelectrocatalítica del peróxido de hidrógeno se observó a un potencial redox de -645 mV vs Ag. Este proceso fue controlado por difusión de las especies en la superficie del electrodo en un rango de velocidad de barrido lineal de 50-500 mV/s. La cronoamperometría permitió la construcción de curvas de calibración entre la corriente de reducción y la concentración del H2O2 para la determinación de parámetros analíticos como sensibilidad, rango lineal y nivel mínimo de detección. El desarrollo de este biosensor amperométrico se convierte en un paso preliminar para la construcción de un dispositivo portátil y de respuesta rápida para el análisis de H2O2 en muestras de interés ambiental y biomédico.
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Moonla C, Nontapha C, Ouiram T, Preechaworapun A, Tangkuaram T. Enhancing a Novel Robust Multicomposite Materials Platform for Glucose Biosensors. ELECTROANAL 2019. [DOI: 10.1002/elan.201800807] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Chochanon Moonla
- Applied Chemistry Program, Faculty of ScienceMaejo University Chiang Mai 50290 Thailand
| | | | - Tik Ouiram
- Applied Chemistry Program, Faculty of ScienceMaejo University Chiang Mai 50290 Thailand
| | - Anchana Preechaworapun
- Chemistry Program, Faculty of Science and TechnologyPibulsongkram Rajabhat University Phitsanulok 65000 Thailand
| | - Tanin Tangkuaram
- Applied Chemistry Program, Faculty of ScienceMaejo University Chiang Mai 50290 Thailand
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14
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Lu D, Xu Q, Pang G. A bombykol electrochemical receptor sensor and its kinetics. Bioelectrochemistry 2019; 128:263-273. [PMID: 31051432 DOI: 10.1016/j.bioelechem.2019.04.009] [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: 12/01/2018] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 12/13/2022]
Abstract
This study aimed to explore the interaction between bombykol and BmOR1 and also provide a paradigm for agroforestry pest control. The electrochemical biosensor signal amplification system was used: nanogold with horseradish peroxidase. An electrochemical bilayer nanogold membrane receptor sensor was developed using the following schemes and processes: twice self-assembly of nanogold and succeeding absorption of Bombyx mori olfactory receptor 1 (BmOR1); sex pheromone-binding protein; spectral scanning and transmission electron microscope to characterize nanogold sol; and atomic force microscope, cyclic voltammetry, and AC impedance methods to characterize individual processes of sensor assembly. The amperometric I-T curve was adopted to measure the response current upon interaction with different concentrations of bombykol (diluted in phosphate-buffered saline) and BmOR1. The results demonstrated the receptor-ligand interaction pattern, which was similar to enzymatic reaction kinetics, with the activation constant Ka of up to 8.57 × 10-20 mol/L and signal magnification of about 10,000-fold. In this study, the simulation of intracellular receptor signaling cascade by an electrochemical signal amplification system helped in directly measuring BmOR1-bombykol ligand interaction and exploring the kinetics after the self-assembly of BmOR1 on the biosensor. It provided a novel platform for future studies on receptor-ligand interaction.
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Affiliation(s)
- Dingqiang Lu
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; Tianjin Key Laboratory of Food Biotechnology, Tianjin 300134, China
| | - Qiuda Xu
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; Tianjin Key Laboratory of Food Biotechnology, Tianjin 300134, China
| | - Guangchang Pang
- College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China.
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15
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Huang Y, Lu D, Liu H, Liu S, Jiang S, Pang GC, Liu Y. Preliminary research on the receptor–ligand recognition mechanism of umami by an hT1R1 biosensor. Food Funct 2019; 10:1280-1287. [DOI: 10.1039/c8fo02522c] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The biosensor reflecting the linkage of the umami signal during conduction and amplification, and the study on the receptor–ligand recognition mechanism.
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Affiliation(s)
- Yulin Huang
- College of Food Science and Technology
- Shanghai Ocean University
- Shanghai 201306
- PR China
| | - Dingqiang Lu
- College of Biotechnology and Food Science
- Tianjin University of Commerce
- Tianjin 300134
- PR China
| | - Hai Liu
- College of Food Science and Technology
- Shanghai Ocean University
- Shanghai 201306
- PR China
| | - Suyao Liu
- College of Food Science and Technology
- Shanghai Ocean University
- Shanghai 201306
- PR China
| | - Shui Jiang
- Department of Food Science and Technology
- School of Agriculture and Biology
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Guang-chang Pang
- College of Biotechnology and Food Science
- Tianjin University of Commerce
- Tianjin 300134
- PR China
| | - Yuan Liu
- Department of Food Science and Technology
- School of Agriculture and Biology
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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16
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Waifalkar P, Chougale A, Kollu P, Patil P, Patil P. Magnetic nanoparticle decorated graphene based electrochemical nanobiosensor for H2O2 sensing using HRP. Colloids Surf B Biointerfaces 2018; 167:425-431. [DOI: 10.1016/j.colsurfb.2018.04.042] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 04/19/2018] [Accepted: 04/21/2018] [Indexed: 11/24/2022]
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17
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A novel electrochemical immunosensor based on Au nanoparticles and horseradish peroxidase signal amplification for ultrasensitive detection of α-fetoprotein. Biomed Microdevices 2018; 20:46. [PMID: 29869001 DOI: 10.1007/s10544-018-0291-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An electrochemical double-layer Au nanoparticle membrane immunosensor was developed using an electrochemical biosensing signal amplification system with Au nanoparticles, thionine, chitosan, and horseradish peroxidase, which was fabricated using double self-adsorption of Au nanoparticle sol followed by anti-α-fetoprotein Balb/c mouse monoclonal antibody adsorption. The AuNPs sol was characterized by spectrum scanning and transmission electron microscopy. The immunosensor was characterized by atomic force microscopy, cyclic voltammetry, and alternating-current impedance during each stage of adsorption and assembly. The amperometric I-t curve method was used to measure α-fetoprotein (AFP) diluted in phosphate buffered saline. The result indicated a wide linear range, and the change rate of steady-current before and after immune response had linear correlation within the range 0.1-104 pg/mL AFP. The current change rate equation was △I = 5.82334 lgC + 37.01195 (R2 = 0.9922). The lowest limit of detection was 0.03 pg/mL (S/N = 3), and the reproducibility of the sensor was good. Additionally, the sensor could be stably stored above phosphate buffered saline at 4 °C for more than 24 days. More importantly, the sensor is label-free, reagentless and low fouling, making it capable of assaying AFP in real serum samples without suffering from significant interference or biofouling.
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Liu ZT, Ye JS, Hsu SY, Lee CL. A sonoelectrochemical preparation of graphene nanosheets with graphene quantum dots for their use as a hydrogen peroxide sensor. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.12.178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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19
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Lu D, Pang G, Xie J. A new phosphothreonine lyase electrochemical immunosensor for detecting Salmonella based on horseradish peroxidase/GNPs-thionine/chitosan. Biomed Microdevices 2017; 19:12. [PMID: 28194610 DOI: 10.1007/s10544-017-0149-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In the current study, a novel double-layer gold nanoparticles- electrochemical immunosensor electrode (DGN-EIE) immobilized with Salmonella plasmid virulence C (SpvC) antibody was developed. To increase the fixed quantity of antibodies and electrochemical signal, an electrochemical biosensing signal amplification system was utilized with gold nanoparticles-thionine-chitosan absorbing horseradish peroxidase (HRP). In addition, the SpvC monoclonal antibodies (derived from Balb/c mice) were prepared and screened with a high affinity to SpvC. To evaluate the quality of DGN-EIE, the amperometric I-t curve method was applied to determine Salmonella in PBS. The results showed that the response current had a good linear correlation with the bacterial quantity ranged from 1.0 × 101-5.0 × 104 cfu/mL. The lowest detection limit was found at 5 cfu/mL. Furthermore, the proposed immunosensor has been demonstrated with high sensitivity, good selectivity and reproducibility. Apparently, DGN-EIE may be a very useful tool for monitoring the bacteria.
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Affiliation(s)
- Dingqiang Lu
- Biotechnology & Food Science College, Tianjin University of Commerce, Tianjin, 300314, China
| | - Guangchang Pang
- Biotechnology & Food Science College, Tianjin University of Commerce, Tianjin, 300314, China. .,Tianjin Key Laboratory of Food Biotechnology, Tianjin, 300314, China.
| | - Junbo Xie
- Biotechnology & Food Science College, Tianjin University of Commerce, Tianjin, 300314, China. .,Tianjin Key Laboratory of Food Biotechnology, Tianjin, 300314, China.
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A new peroxidase from leaves of guinea grass ( Panicum maximum ): A potential biocatalyst to build amperometric biosensors. Bioelectrochemistry 2017; 116:33-38. [DOI: 10.1016/j.bioelechem.2017.03.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/27/2017] [Accepted: 03/27/2017] [Indexed: 11/21/2022]
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21
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Fusco G, Bollella P, Mazzei F, Favero G, Antiochia R, Tortolini C. Catalase-Based Modified Graphite Electrode for Hydrogen Peroxide Detection in Different Beverages. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2016; 2016:8174913. [PMID: 28078163 PMCID: PMC5203923 DOI: 10.1155/2016/8174913] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/02/2016] [Accepted: 11/09/2016] [Indexed: 05/30/2023]
Abstract
A catalase-based (NAF/MWCNTs) nanocomposite film modified glassy carbon electrode for hydrogen peroxide (H2O2) detection was developed. The developed biosensor was characterized in terms of its bioelectrochemical properties. Cyclic voltammetry (CV) technique was employed to study the redox features of the enzyme in the absence and in the presence of nanomaterials dispersed in Nafion® polymeric solution. The electron transfer coefficient, α, and the electron transfer rate constant, ks , were found to be 0.42 and 1.71 s-1, at pH 7.0, respectively. Subsequently, the same modification steps were applied to mesoporous graphite screen-printed electrodes. Also, these electrodes were characterized in terms of their main electrochemical and kinetic parameters. The biosensor performances improved considerably after modification with nanomaterials. Moreover, the association of Nafion with carbon nanotubes retained the biological activity of the redox protein. The enzyme electrode response was linear in the range 2.5-1150 μmol L-1, with LOD of 0.83 μmol L-1. From the experimental data, we can assess the possibility of using the modified biosensor as a useful tool for H2O2 determination in packaged beverages.
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Affiliation(s)
- Giovanni Fusco
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
| | - Paolo Bollella
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
| | - Franco Mazzei
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
| | - Gabriele Favero
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
| | - Riccarda Antiochia
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
| | - Cristina Tortolini
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
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A Novel Tetrahydrocannabinol Electrochemical Nano Immunosensor Based on Horseradish Peroxidase and Double-Layer Gold Nanoparticles. Molecules 2016; 21:molecules21101377. [PMID: 27763523 PMCID: PMC6274132 DOI: 10.3390/molecules21101377] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 10/09/2016] [Accepted: 10/12/2016] [Indexed: 11/17/2022] Open
Abstract
In the current study, a novel double-layer gold nanoparticles-electrochemical immunosensor electrode immobilized with tetrahydrocannabinol (THC) antibody derived from Balb/c mice was developed. To increase the fixed quantity of antibodies and electrochemical signals, an electrochemical biosensing signal amplification system was utilized with gold nanoparticles-thionine-chitosan absorbing horseradish peroxidase (HRP). In addition, a transmission electron microscope (TEM) was used to characterize the nanogold solution. To evaluate the quality of the immunosensor, the amperometric I-t curve method was applied to determine the THC in PBS. The results showed that the response current had a good linear correlation with the THC concentration range from 0.01~103 ng/mL with a correlation coefficient of 0.9986. The lowest detection limit for THC was 3.3 pg/mL (S/N = 3). Moreover, it was validated with high sensitivity and reproducibility. Apparently, the immunosensor may be a very useful tool for monitoring the THC.
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23
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Direct electrochemical detection of kanamycin based on peroxidase-like activity of gold nanoparticles. Anal Chim Acta 2016; 936:75-82. [DOI: 10.1016/j.aca.2016.07.013] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/02/2016] [Accepted: 07/11/2016] [Indexed: 11/20/2022]
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24
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A novel glutathione-S transferase immunosensor based on horseradish peroxidase and double-layer gold nanoparticles. Biomed Microdevices 2016; 18:50. [DOI: 10.1007/s10544-016-0075-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Han L, Tao H, Huang M, Zhang Y, Qiao S, Shi R. A hydrogen peroxide biosensor based on multiwalled carbon nanotubes-polyvinyl butyral film modified electrode. RUSS J ELECTROCHEM+ 2016. [DOI: 10.1134/s1023193516020051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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A sandwich type immunosensor for ultrasensitive electrochemical quantification of p53 protein based on gold nanoparticles/graphene oxide. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.11.133] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Chen CW, Liu ZT, Zhang YZ, Ye JS, Lee CL. Sonoelectrochemical intercalation and exfoliation for the preparation of defective graphene sheets and their application as nonenzymatic H2O2 sensors and oxygen reduction catalysts. RSC Adv 2015. [DOI: 10.1039/c5ra01744k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A sonoelectrochemical synthetic method is reported for rapidly preparing and dispersing reduced graphene nanosheets (RGNSECM) stabilized in an aqueous electrolyte.
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Affiliation(s)
- Chin-Wei Chen
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Applied Sciences
- Kaohsiung
- Taiwan
| | - Zhe-Tin Liu
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Applied Sciences
- Kaohsiung
- Taiwan
| | - Yu-Zhen Zhang
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Applied Sciences
- Kaohsiung
- Taiwan
| | - Jyun-Sian Ye
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Applied Sciences
- Kaohsiung
- Taiwan
| | - Chien-Liang Lee
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Applied Sciences
- Kaohsiung
- Taiwan
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28
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Highly accessible Pt nanodots homogeneously decorated on Au nanorods surface for sensing. Anal Chim Acta 2014; 852:37-44. [DOI: 10.1016/j.aca.2014.08.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 08/19/2014] [Accepted: 08/27/2014] [Indexed: 12/29/2022]
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29
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Xu X, Fang Y, Wang L. A Label-Free Electrochemical Immunosensor for Clostridium Difficile Toxin B Based on One-Step Immobilization of Thionine in a Silica Matrix. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.900623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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A hydrogen peroxide biosensor with high stability based on gelatin-multiwalled carbon nanotubes modified glassy carbon electrode. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2441-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Li Q, Cheng K, Weng W, Du P, Han G. Titanium dioxide nanorod-based amperometric sensor for highly sensitive enzymatic detection of hydrogen peroxide. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1077-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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32
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A glucose biosensor based on direct attachment of in situ generated nile blue diazonium cations to the electrode surface. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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THE APPLICATION OF THIOLATED CHITOSAN IN CONSTRUCTION OF ELECTROCHIMICAL BIOSENSOR. ACTA POLYM SIN 2013. [DOI: 10.3724/sp.j.1105.2013.12244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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