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Istrate OM, Bala C, Rotariu L. A New Highly Sensitive Electrochemical Biosensor for Ethanol Detection Based on Gold Nanoparticles/Reduced Graphene Oxide/Polyallylamine Hydrochloride Nanocomposite. BIOSENSORS 2023; 13:954. [PMID: 37998129 PMCID: PMC10669219 DOI: 10.3390/bios13110954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023]
Abstract
A highly sensitive electrochemical biosensor for ethanol based on a screen-printed electrode modified with gold nanoparticles-electrochemically reduced graphene oxide-poly (allylamine hydrochloride) nanocomposite (AuNPs-ERGO-PAH) is reported in this work. Ethanol was oxidized in the presence of the oxidized form of the nicotinamide adenine dinucleotide (NAD+) in a reaction catalyzed by alcohol dehydrogenase (ADH) immobilized in sol-gel. The AuNPs-ERGO-PAH nanocomposite was used as a transducer for the electrocatalytic oxidation of the reduced form the nicotinamide adenine dinucleotide (NADH) produced in the enzyme reaction. Under the optimal conditions, the ethanol biosensor exhibits a wide dynamic range from 0.05 to 5 mM with a low detection limit of 10 µM (S/N = 3) and a high sensitivity of 44.6 ± 0.07 µA/mM·cm2 for the linear range between 0.05 and 0.2 mM. The biosensor response was stable for up to 6 weeks. Furthermore, the developed biosensor has been used to detect ethanol in alcoholic beverages with good results, suggesting its potential application in various fields, including fermentation processes and food quality control.
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Affiliation(s)
- Oana-Maria Istrate
- LaborQ, University of Bucharest, 030018 Bucharest, Romania; (O.-M.I.); (C.B.)
| | - Camelia Bala
- LaborQ, University of Bucharest, 030018 Bucharest, Romania; (O.-M.I.); (C.B.)
- Department of Analytical Chemistry and Physical Chemistry, University of Bucharest, 030018 Bucharest, Romania
| | - Lucian Rotariu
- LaborQ, University of Bucharest, 030018 Bucharest, Romania; (O.-M.I.); (C.B.)
- Department of Analytical Chemistry and Physical Chemistry, University of Bucharest, 030018 Bucharest, Romania
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2
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Chmayssem A, Shalayel I, Marinesco S, Zebda A. Investigation of GOx Stability in a Chitosan Matrix: Applications for Enzymatic Electrodes. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23010465. [PMID: 36617063 PMCID: PMC9824325 DOI: 10.3390/s23010465] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 06/12/2023]
Abstract
In this study, we designed a new biosensing membrane for the development of an electrochemical glucose biosensor. To proceed, we used a chitosan-based hydrogel that entraps glucose oxidase enzyme (GOx), and we crosslinked the whole matrix using glutaraldehyde, which is known for its quick and reactive crosslinking behavior. Then, the stability of the designed biosensors was investigated over time, according to different storage conditions (in PBS solution at temperatures of 4 °C and 37 °C and in the presence or absence of glucose). In some specific conditions, we found that our biosensor is capable of maintaining its stability for more than six months of storage. We also included catalase to protect the biosensing membranes from the enzymatic reaction by-products (e.g., hydrogen peroxide). This design protects the biocatalytic activity of GOx and enhances the lifetime of the biosensor.
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Affiliation(s)
- Ayman Chmayssem
- Université Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, INSERM, TIMC, 38000 Grenoble, France
| | - Ibrahim Shalayel
- Université Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, INSERM, TIMC, 38000 Grenoble, France
| | - Stéphane Marinesco
- Plate-Forme Technologique BELIV, Lyon Neuroscience Research Center, CNRS UMR5292, INSERM U1028, Université Claude Bernard Lyon 1, 69373 Lyon, France
| | - Abdelkader Zebda
- Université Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, INSERM, TIMC, 38000 Grenoble, France
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3
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Zhang S, Xie Y, Feng J, Chu Z, Jin W. Screen‐printing of nanocube‐based flexible microchips for the precise biosensing of ethanol during fermentation. AIChE J 2021. [DOI: 10.1002/aic.17142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sijian Zhang
- State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemical Engineering Nanjing Tech University Nanjing China
| | - Ying Xie
- State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemical Engineering Nanjing Tech University Nanjing China
| | - Jingyu Feng
- State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemical Engineering Nanjing Tech University Nanjing China
| | - Zhenyu Chu
- State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemical Engineering Nanjing Tech University Nanjing China
| | - Wanqin Jin
- State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemical Engineering Nanjing Tech University Nanjing China
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4
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Pilas J, Selmer T, Keusgen M, Schöning MJ. Screen-Printed Carbon Electrodes Modified with Graphene Oxide for the Design of a Reagent-Free NAD +-Dependent Biosensor Array. Anal Chem 2019; 91:15293-15299. [PMID: 31674761 DOI: 10.1021/acs.analchem.9b04481] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A facile approach for the construction of reagent-free electrochemical dehydrogenase-based biosensors is presented. Enzymes and cofactors (NAD+ and Fe(CN)63-) were immobilized by modification of screen-printed carbon electrodes with graphene oxide (GO) and an additional layer of cellulose acetate. The sensor system was exemplarily optimized for an l-lactate electrode in terms of GO concentration, working potential, and pH value. The biosensor exhibited best characteristics at pH 7.5 in 100 mM potassium phosphate buffer at an applied potential of +0.250 V versus an internal pseudo Ag reference electrode. Thereby, sensor performance was characterized by a linear working range from 0.25 to 4 mM and a sensitivity of 0.14 μA mM-1. The detection principle was additionally evaluated with three other dehydrogenases (d-lactate dehydrogenase, alcohol dehydrogenase, and formate dehydrogenase, respectively). The developed reagentless biosensor array enabled simultaneous and cross-talk free determination of l-lactate, d-lactate, ethanol, and formate.
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Affiliation(s)
- Johanna Pilas
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Jülich , Germany.,Institute of Pharmaceutical Chemistry , Philipps-Universität Marburg , Marburg , Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Jülich , Germany
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry , Philipps-Universität Marburg , Marburg , Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Jülich , Germany.,Institute of Complex Systems 8 (ICS-8) , Forschungszentrum Jülich , Jülich , Germany
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Cohen E, Merzendorfer H. Chitin/Chitosan: Versatile Ecological, Industrial, and Biomedical Applications. EXTRACELLULAR SUGAR-BASED BIOPOLYMERS MATRICES 2019; 12. [PMCID: PMC7115017 DOI: 10.1007/978-3-030-12919-4_14] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chitin is a linear polysaccharide of N-acetylglucosamine, which is highly abundant in nature and mainly produced by marine crustaceans. Chitosan is obtained by hydrolytic deacetylation. Both polysaccharides are renewable resources, simply and cost-effectively extracted from waste material of fish industry, mainly crab and shrimp shells. Research over the past five decades has revealed that chitosan, in particular, possesses unique and useful characteristics such as chemical versatility, polyelectrolyte properties, gel- and film-forming ability, high adsorption capacity, antimicrobial and antioxidative properties, low toxicity, and biocompatibility and biodegradability features. A plethora of chemical chitosan derivatives have been synthesized yielding improved materials with suggested or effective applications in water treatment, biosensor engineering, agriculture, food processing and storage, textile additives, cosmetics fabrication, and in veterinary and human medicine. The number of studies in this research field has exploded particularly during the last two decades. Here, we review recent advances in utilizing chitosan and chitosan derivatives in different technical, agricultural, and biomedical fields.
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Affiliation(s)
- Ephraim Cohen
- Department of Entomology, The Robert H. Smith Faculty of Agriculture Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Hans Merzendorfer
- School of Science and Technology, Institute of Biology – Molecular Biology, University of Siegen, Siegen, Germany
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Gallay P, Eguílaz M, Rivas G. Multi‐walled Carbon Nanotubes Non‐covalently Functionalized with Polyarginine: A New Alternative for the Construction of Reagentless NAD
+
/Dehydrogenase‐based Ethanol Biosensor. ELECTROANAL 2019. [DOI: 10.1002/elan.201800892] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Pablo Gallay
- INFIQC, Departamento de Fisicoquímica, Facultad de Ciencias QuímicasCiudad Universitaria 5000 Córdoba Argentina
| | - Marcos Eguílaz
- INFIQC, Departamento de Fisicoquímica, Facultad de Ciencias QuímicasCiudad Universitaria 5000 Córdoba Argentina
| | - Gustavo Rivas
- INFIQC, Departamento de Fisicoquímica, Facultad de Ciencias QuímicasCiudad Universitaria 5000 Córdoba Argentina
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Yang Y, Nam S, Lee WY. Tris(2,2′-bipyridyl)ruthenium(II) electrogenerated chemiluminescence ethanol biosensor based on ionic liquid doped titania-Nafion composite film. Microchem J 2018. [DOI: 10.1016/j.microc.2018.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Farzin L, Shamsipur M, Samandari L, Sheibani S. Advances in the design of nanomaterial-based electrochemical affinity and enzymatic biosensors for metabolic biomarkers: A review. Mikrochim Acta 2018; 185:276. [PMID: 29721621 DOI: 10.1007/s00604-018-2820-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 04/24/2018] [Indexed: 10/17/2022]
Abstract
This review (with 340 refs) focuses on methods for specific and sensitive detection of metabolites for diagnostic purposes, with particular emphasis on electrochemical nanomaterial-based sensors. It also covers novel candidate metabolites as potential biomarkers for diseases such as neurodegenerative diseases, autism spectrum disorder and hepatitis. Following an introduction into the field of metabolic biomarkers, a first major section classifies electrochemical biosensors according to the bioreceptor type (enzymatic, immuno, apta and peptide based sensors). A next section covers applications of nanomaterials in electrochemical biosensing (with subsections on the classification of nanomaterials, electrochemical approaches for signal generation and amplification using nanomaterials, and on nanomaterials as tags). A next large sections treats candidate metabolic biomarkers for diagnosis of diseases (in the context with metabolomics), with subsections on biomarkers for neurodegenerative diseases, autism spectrum disorder and hepatitis. The Conclusion addresses current challenges and future perspectives. Graphical abstract This review focuses on the recent developments in electrochemical biosensors based on the use of nanomaterials for the detection of metabolic biomarkers. It covers the critical metabolites for some diseases such as neurodegenerative diseases, autism spectrum disorder and hepatitis.
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Affiliation(s)
- Leila Farzin
- Radiation Application Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Iran.
| | - Mojtaba Shamsipur
- Department of Chemistry, Razi University, P.O. Box 67149-67346, Kermanshah, Iran
| | - Leila Samandari
- Department of Chemistry, Razi University, P.O. Box 67149-67346, Kermanshah, Iran
| | - Shahab Sheibani
- Radiation Application Research School, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Iran
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9
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Barhoumi L, Istrate OM, Rotariu L, Ali MB, Bala C. Amperometric Determination of Ethanol using a Novel Nanobiocomposite. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1302948] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Lassaad Barhoumi
- LaborQ, University of Bucharest, Bucharest, Romania
- Higher Institute of Applied Sciences and Technology of Sousse, University of Sousse, Sousse, Tunisia
- Nanomisene Lab, LR16CRMN01, Center for Research on Microelectronics and Nanotechnology of Sousse, Sousse, Tunisia
| | | | - Lucian Rotariu
- LaborQ, University of Bucharest, Bucharest, Romania
- Department of Analytical Chemistry, University of Bucharest, Bucharest, Romania
| | - Mounir Ben Ali
- Higher Institute of Applied Sciences and Technology of Sousse, University of Sousse, Sousse, Tunisia
- Nanomisene Lab, LR16CRMN01, Center for Research on Microelectronics and Nanotechnology of Sousse, Sousse, Tunisia
| | - Camelia Bala
- LaborQ, University of Bucharest, Bucharest, Romania
- Department of Analytical Chemistry, University of Bucharest, Bucharest, Romania
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10
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Adhikari BR, Schraft H, Chen A. A high-performance enzyme entrapment platform facilitated by a cationic polymer for the efficient electrochemical sensing of ethanol. Analyst 2017; 142:2595-2602. [DOI: 10.1039/c7an00594f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient enzyme entrapment approach using a cationic polymer has been demonstrated for the development of a high-performance ethanol biosensor.
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Affiliation(s)
| | - Heidi Schraft
- Department of Biology
- Lakehead University
- Thunder Bay
- Canada
| | - Aicheng Chen
- Department of Chemistry
- Lakehead University
- Thunder Bay
- Canada
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11
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Abstract
The shape-dependent activity of gold nanoparticles (AuNP) was studied by testing them as electrocatalysts for the notoriously slow non-enzymatic oxidation of glucose in neutral solutions. The AuNP of spherical and irregular (including polyhedral) morphologies were synthesized and attached to glassy carbon electrodes with chitosan. Voltammetric and mass spectrometric studies showed that the irregular AuNP were more catalytically active toward the oxidation of glucose to gluconic acid. No obvious differences between both morphologies were found based on their X-ray diffraction patterns and HRTEM images suggesting that the crystallographic orientation alone did not account for their catalytic properties. While both morphologies contain the (111) crystallographic planes that are catalytic toward glucose oxidation, the better activity of irregular AuNP was ascribed to a higher surface density of incipient gold oxide acting as a fast redox mediator for glucose oxidation. Supporting this, the AuNP of both morphologies oxidized glucose after their anodic activation, although not to the same extent. The amperometric (0.30 V) determination of glucose at electrodes made of irregular AuNP yielded a wide linear calibration plot (0.20-110 mM; R2, 0.998), sensitivity of 66 μA M-1 cm-2, limit of detection of 100 μM (S/N, 3), and a response time below 5 s. The advantage of low-cost irregular AuNP over macro gold is that they are catalytic toward glucose oxidation without any need for prior activation.
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12
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Samphao A, Kunpatee K, Prayoonpokarach S, Wittayakun J, Švorc Ľ, Stankovic DM, Zagar K, Ceh M, Kalcher K. An Ethanol Biosensor Based on Simple Immobilization of Alcohol Dehydrogenase on Fe3O4@Au Nanoparticles. ELECTROANAL 2015. [DOI: 10.1002/elan.201500315] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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LI YW, CHEN Y, MA YH, SHI JG, WANG YX, QI CH, LI QS. Recent Advances in the Dehydrogenase Biosensors Based on Carbon Nanotube Modified Electrodes. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(13)60733-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Karra S, Gorski W. Signal Amplification in Enzyme-Based Amperometric Biosensors. Anal Chem 2013; 85:10573-80. [DOI: 10.1021/ac4026994] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sushma Karra
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249-0698, United States
| | - Waldemar Gorski
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249-0698, United States
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Urbanova V, Kohring GW, Klein T, Wang Z, Mert O, Emrullahoglu M, Buran K, Demir AS, Etienne M, Walcarius A. Sol-gel Approaches for Elaboration of Polyol Dehydrogenase-Based Bioelectrodes. ACTA ACUST UNITED AC 2013. [DOI: 10.1524/zpch.2013.0324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Abstract
This review describes the input of sol-gel chemistry to the immobilization of polyol dehydrogenases on electrodes, for applications in bioelectrocatalysis. The polyol dehydrogenases are described and their application for biosensing, biofuel cell and electrosynthesis are briefly discussed. The immobilization of proteins via sol-gel approaches is described, including a discussion on the difficulty to maintain the activity of proteins in a silica matrix and the strategies developed to offer a proper environment to the proteins by developing optimal organic-inorganic hybrid materials. Finally, the co-immobilization of the NAD
+
co-factor and of mediators for the elaboration of reagentless devices is presented, based on published and original data. All-in-all, sol-gel approaches appear to be a very promising for development of original electrochemical applications involving dehydrogenases in near future.
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Affiliation(s)
- Veronika Urbanova
- CNRS and Université de Lorraine, Lab. de Chimie Physique et Microbiologie, Villers-les-Nancy, Frankreich
| | | | - Tobias Klein
- Saarland University, Microbiology, Saarbrücken, Deutschland
| | - Zhijie Wang
- CNRS and Université de Lorraine, Lab. de Chimie Physique et Microbiologie, Villers-les-Nancy, Frankreich
| | - Olcay Mert
- Middle East Technical University, Department of Chemistry, Ankara, Türkei
| | | | - Kerem Buran
- Middle East Technical University, Department of Chemistry, Ankara, Türkei
| | - Ayhan S. Demir
- Middle East Technical University, Department of Chemistry, Ankara, Türkei
| | | | - Alain Walcarius
- CNRS and Université de Lorraine, Lab. de Chemie Physique et Microbiologie, Villers-les-Nancy, Frankreich
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Shukla SK, Mishra AK, Arotiba OA, Mamba BB. Chitosan-based nanomaterials: a state-of-the-art review. Int J Biol Macromol 2013; 59:46-58. [PMID: 23608103 DOI: 10.1016/j.ijbiomac.2013.04.043] [Citation(s) in RCA: 420] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 03/02/2013] [Accepted: 04/12/2013] [Indexed: 11/26/2022]
Abstract
This manuscript briefly reviews the extensive research as well as new developments on chitosan based nanomaterials for various applications. Chitosan is a biocompatible and biodegradable polymer having immense structural possibilities for chemical and mechanical modification to generate novel properties and functions in different fields especially in the biomedical field. Over the last era, research in functional biomaterials such as chitosan has led to the development of new drug delivery system and superior regenerative medicine, currently one of the most quickly growing fields in the area of health science. Chitosan is known as a biomaterial due to its biocompatibility, biodegradability, and non-toxic properties. These properties clearly point out that chitosan has greater potential for future development in different fields of science namely drug delivery, gene delivery, cell imaging, sensors and also in the treatment as well as diagnosis of some diseases like cancer. Chitosan based nanomaterials have superior physical and chemical properties such as high surface area, porosity, tensile strength, conductivity, photo-luminescent as well as increased mechanical properties as comparison to pure chitosan. This review highlights the recent research on different aspect of chitosan based nanomaterials, including their preparation and application.
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Affiliation(s)
- Sudheesh K Shukla
- Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa
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Wang Z, Etienne M, Urbanova V, Kohring GW, Walcarius A. Reagentless D-sorbitol biosensor based on D-sorbitol dehydrogenase immobilized in a sol-gel carbon nanotubes-poly(methylene green) composite. Anal Bioanal Chem 2013; 405:3899-906. [PMID: 23462979 DOI: 10.1007/s00216-013-6820-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 02/01/2013] [Accepted: 02/05/2013] [Indexed: 10/27/2022]
Abstract
A reagentless D-sorbitol biosensor based on NAD-dependent D-sorbitol dehydrogenase (DSDH) immobilized in a sol-gel carbon nanotubes-poly(methylene green) composite has been developed. It was prepared by durably immobilizing the NAD(+) cofactor with DSDH in a sol-gel thin film on the surface of carbon nanotubes functionalized with poly(methylene green). This device enables selective determination of D-sorbitol at 0.2 V with a sensitivity of 8.7 μA mmol(-1) L cm(-2) and a detection limit of 0.11 mmol L(-1). Moreover, this biosensor has excellent operational stability upon continuous use in hydrodynamic conditions.
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Affiliation(s)
- Zhijie Wang
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement, UMR 7564, CNRS-Université de Lorraine and CNRS, 405, rue de Vandoeuvre, 54600 Villers-lès-Nancy, France
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18
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Gao BH, Ding SN, Wang YH, Dai Y, Xia J, Sun YM, Cosnier S. A Solid-State Electrochemiluminescence Ethanol Biosensor Based on Electrogenerated Poly(pyrrole-tris(2,2′-bipyridyl)ruthenium(II)) Film/Alcohol Dehydrogenase/Laponite Composite. ELECTROANAL 2013. [DOI: 10.1002/elan.201200626] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Karra S, Zhang M, Gorski W. Electrochemistry and Current Control in Surface Films Based on Silica-Azure Redox Nanoparticles, Carbon Nanotubes, Enzymes, and Polyelectrolytes. Anal Chem 2012; 85:1208-14. [DOI: 10.1021/ac303192r] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sushma Karra
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249-0698,
United States
| | - Maogen Zhang
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249-0698,
United States
| | - Waldemar Gorski
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249-0698,
United States
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Direct electrochemistry of alcohol oxidase using multiwalled carbon nanotube as electroactive matrix for biosensor application. Bioelectrochemistry 2012; 89:19-25. [PMID: 23000393 DOI: 10.1016/j.bioelechem.2012.08.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 08/15/2012] [Accepted: 08/25/2012] [Indexed: 11/20/2022]
Abstract
Rapid detection of alcohol is important in clinical diagnosis and fermentation industry. An octameric alcohol oxidase (AOx) (Mr 675 kDa) from Pichia pastoris, immobilized on multiwalled carbon nanotubes-Nafion® (MWCNT-Nf) matrix and encapsulated with polyethylenimine (PEI) on gold electrode (AuE), showed a redox peak at 0.21V (vs. Ag/AgCl electrode at pH 7.5) for oxidation of alcohol. The electron transfer rate constant and surface coverage of the immobilized AOx were 1.69±0.15 s⁻¹ and 2.43×10⁻¹² mol cm⁻², respectively. Studies on response and kinetics of Au-MWCNT-Nf-AOx-PEI bioelectrodes for alcohol showed a linear response in the range of 8 μM-42 μM, response time of 55 s for steady state current, and detection limit of 5 μM. The bioelectrode retains ~90% of the original response even after four weeks when stored in potassium phosphate buffer pH 7.5 at 4 °C. The fabricated bioelectrode was found to exclude interference caused by the common electroactive species such as ascorbic acid, uric acid, lactic acid, glucose and urea. The bioelectrode also showed reliable response characteristics in blood serum samples. The findings of the investigation have established the direct electrochemistry of the AOx protein and its potential biosensor application for quantitative detection of alcohol in blood serum.
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Chekin F, Raoof JB, Bagheri S, Hamid SBA. Fabrication of Chitosan-Multiwall Carbon Nanotube Nanocomposite Containing Ferri/Ferrocyanide: Application for Simultaneous Detection ofD-Penicillamine and Tryptophan. J CHIN CHEM SOC-TAIP 2012. [DOI: 10.1002/jccs.201200138] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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22
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Ethanol determination by an amperometric bienzyme sensor based on a Clark-type transducer. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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