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Kyomuhimbo HD, Feleni U, Haneklaus NH, Brink H. Recent Advances in Applications of Oxidases and Peroxidases Polymer-Based Enzyme Biocatalysts in Sensing and Wastewater Treatment: A Review. Polymers (Basel) 2023; 15:3492. [PMID: 37631549 PMCID: PMC10460086 DOI: 10.3390/polym15163492] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/10/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Oxidase and peroxidase enzymes have attracted attention in various biotechnological industries due to their ease of synthesis, wide range of applications, and operation under mild conditions. Their applicability, however, is limited by their poor stability in harsher conditions and their non-reusability. As a result, several approaches such as enzyme engineering, medium engineering, and enzyme immobilization have been used to improve the enzyme properties. Several materials have been used as supports for these enzymes to increase their stability and reusability. This review focusses on the immobilization of oxidase and peroxidase enzymes on metal and metal oxide nanoparticle-polymer composite supports and the different methods used to achieve the immobilization. The application of the enzyme-metal/metal oxide-polymer biocatalysts in biosensing of hydrogen peroxide, glucose, pesticides, and herbicides as well as blood components such as cholesterol, urea, dopamine, and xanthine have been extensively reviewed. The application of the biocatalysts in wastewater treatment through degradation of dyes, pesticides, and other organic compounds has also been discussed.
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Affiliation(s)
- Hilda Dinah Kyomuhimbo
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa;
| | - Usisipho Feleni
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, Roodepoort, Johannesburg 1710, South Africa;
| | - Nils H. Haneklaus
- Transdisciplinarity Laboratory Sustainable Mineral Resources, University for Continuing Education Krems, 3500 Krems, Austria;
| | - Hendrik Brink
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa;
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2
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Theansun W, Sriprachuabwong C, Chuenchom L, Prajongtat P, Techasakul S, Tuantranont A, Dechtrirat D. Acetylcholinesterase modified inkjet-printed graphene/gold nanoparticle/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) hybrid electrode for ultrasensitive chlorpyrifos detection. Bioelectrochemistry 2023; 149:108305. [DOI: 10.1016/j.bioelechem.2022.108305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 12/05/2022]
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3
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Kukkar P, Kukkar D, Younis SA, Singh G, Singh P, Basu S, Kim KH. Colorimetric biosensing of organophosphate pesticides using enzymatic nanoreactor built on zeolitic imdiazolate-8. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106242] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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4
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Ly KL, Hu P, Pham LHP, Luo X. Flow-assembled chitosan membranes in microfluidics: recent advances and applications. J Mater Chem B 2021; 9:3258-3283. [PMID: 33725061 PMCID: PMC8369861 DOI: 10.1039/d1tb00045d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The integration of membranes in microfluidic devices has been extensively exploited for various chemical engineering and bioengineering applications over the past few decades. To augment the applicability of membrane-integrated microfluidic platforms for biomedical and tissue engineering studies, a biologically friendly fabrication process with naturally occurring materials is highly desired. The in situ preparation of membranes involving interfacial reactions between parallel laminar flows in microfluidic networks, known as the flow-assembly technique, is one of the most biocompatible approaches. Membranes of many types with flexible geometries have been successfully assembled inside complex microchannels using this facile and versatile flow-assembly approach. Chitosan is a naturally abundant polysaccharide known for its pronounced biocompatibility, biodegradability, good mechanical stability, ease of modification and processing, and film-forming ability under near-physiological conditions. Chitosan membranes assembled by flows in microfluidics are freestanding, robust, semipermeable, and well-aligned in microstructure, and show high affinity to bioactive reagents and biological components (e.g. biomolecules, nanoparticles, or cells) that provide facile biological functionalization of microdevices. Here, we discuss the recent developments and optimizations in the flow-assembly of chitosan membranes and chitosan-based membranes in microfluidics. Furthermore, we recapitulate the applications of the chitosan membrane-integrated microfluidic platforms dedicated to biology, biochemistry, and drug release fields, and envision the future developments of this important platform with versatile functions.
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Affiliation(s)
- Khanh L Ly
- Department of Biomedical Engineering, The Catholic University of America, Washington, DC 20064, USA
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5
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Jaber N, Al-Akayleh F, Abdel-Rahem RA, Al-Remawi M. Characterization ex vivo skin permeation and pharmacological studies of ibuprofen lysinate-chitosan-gold nanoparticles. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Kulandaiswamy AJ, Sharma N, Nesakumar N, Kailasam K, Rayappan JBB. S,N‐GQDs Enzyme Mimicked Electrochemical Sensor to Detect the Hazardous Level of Monocrotophos in Water. ELECTROANAL 2019. [DOI: 10.1002/elan.201900447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Nidhi Sharma
- Institute of Nano Science and Technology Habitat Center, Phase 10 Mohali 160 062 India
| | - Noel Nesakumar
- Centre for Nano Technology and Advanced Biomaterials (CeNTAB) SASTRA Deemed University Thanjavur 613 401, Tamil Nadu India
| | - Kamalakannan Kailasam
- Institute of Nano Science and Technology Habitat Center, Phase 10 Mohali 160 062 India
| | - John Bosco Balaguru Rayappan
- School of Electrical and Electronics Engineering SASTRA Deemed University Thanjavur 613 401, Tamil Nadu India
- Centre for Nano Technology and Advanced Biomaterials (CeNTAB) SASTRA Deemed University Thanjavur 613 401, Tamil Nadu India
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7
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Kaur N, Thakur H, Prabhakar N. Multi walled carbon nanotubes embedded conducting polymer based electrochemical aptasensor for estimation of malathion. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Electrochemical biosensor for methyl parathion based on single-walled carbon nanotube/glutaraldehyde crosslinked acetylcholinesterase-wrapped bovine serum albumin nanocomposites. Anal Chim Acta 2019; 1074:131-141. [PMID: 31159933 DOI: 10.1016/j.aca.2019.05.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/19/2019] [Accepted: 05/05/2019] [Indexed: 01/02/2023]
Abstract
Semiconducting single-walled carbon nanotubes (s-SWCNTs) have been demonstrated as an excellent material for transistors, miniaturized devices and sensors due to their high carrier mobility, stability, scattering-free ballistic transport of carriers etc. Herein, we have designed a biosensor to selectively detect methyl parathion (MP, organophosphorus pesticide) using glutaraldehyde (Glu) cross-linked with acetylcholinesterase (AChE) immobilized on s-SWCNTs wrapped with bovine serum albumin (BSA). The fabricated biosensor was characterized and confirmed by Fourier-transform infrared spectroscopy (FT-IR), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and square wave voltammetry (SWV). In the presence of MP, the effective interaction between AChE and MP favours the accumulation of MP-AChE complex on the glassy carbon electrode (GCE) surface which reduces the electron transfer property. Based on this interaction, detection of various concentration of MP was demonstrated by SWV using BSA/AChE-Glu-s-SWCNTs composite modified electrode. The proposed biosensor exhibited a wide linear range (WLR) for MP target in 100 mM phosphate buffered saline solution (PBS) (pH 7.4) from 1 × 10-10 M to 5 × 10-6 M with a limit of detection (LOD) of 3.75 × 10-11 M. In addition, the BSA/AChE-Glu-s-SWCNTs/GCE biosensor showed good repeatability and reproducibility for MP detection. Moreover, the proposed biosensor showed better electrode stability when stored at 4 °C. This new electrochemical biosensor is also exhibited high selectivity and sensitivity for MP, which made it possible to test MP in real strawberry and apple juices. Furthermore, the BSA/AChE-Glu-s-SWCNTs/GCE offered a favourable electron transfer between the acetylthiocholine chloride (ATCl) and electrode interface than BSA/AChE-s-SWCNTs/GCE, s-SWCNTs/GCE and bare GCE.
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9
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Patel H, Rawtani D, Agrawal Y. A newly emerging trend of chitosan-based sensing platform for the organophosphate pesticide detection using Acetylcholinesterase- a review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.01.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Gupta P, Bharti A, Kaur N, Singh S, Prabhakar N. An electrochemical aptasensor based on gold nanoparticles and graphene oxide doped poly(3,4-ethylenedioxythiophene) nanocomposite for detection of MUC1. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.02.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Maerten C, Jierry L, Schaaf P, Boulmedais F. Review of Electrochemically Triggered Macromolecular Film Buildup Processes and Their Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28117-28138. [PMID: 28762716 DOI: 10.1021/acsami.7b06319] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Macromolecular coatings play an important role in many technological areas, ranging from the car industry to biosensors. Among the different coating technologies, electrochemically triggered processes are extremely powerful because they allow in particular spatial confinement of the film buildup up to the micrometer scale on microelectrodes. Here, we review the latest advances in the field of electrochemically triggered macromolecular film buildup processes performed in aqueous solutions. All these processes will be discussed and related to their several applications such as corrosion prevention, biosensors, antimicrobial coatings, drug-release, barrier properties and cell encapsulation. Special emphasis will be put on applications in the rapidly growing field of biosensors. Using polymers or proteins, the electrochemical buildup of the films can result from a local change of macromolecules solubility, self-assembly of polyelectrolytes through electrostatic/ionic interactions or covalent cross-linking between different macromolecules. The assembly process can be in one step or performed step-by-step based on an electrical trigger affecting directly the interacting macromolecules or generating ionic species.
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Affiliation(s)
- Clément Maerten
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 23 rue du Loess, F-67034 Strasbourg Cedex, France
| | - Loïc Jierry
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 23 rue du Loess, F-67034 Strasbourg Cedex, France
| | - Pierre Schaaf
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 23 rue du Loess, F-67034 Strasbourg Cedex, France
- INSERM, Unité 1121 "Biomaterials and Bioengineering" , 11 rue Humann, F-67085 Strasbourg Cedex, France
- Faculté de Chirurgie Dentaire, Fédération de Médecine Translationnelle de Strasbourg (FMTS), and Fédération des Matériaux et Nanoscience d'Alsace (FMNA), Université de Strasbourg , 8 rue Sainte Elisabeth, F-67000 Strasbourg, France
- University of Strasbourg Institute for Advanced Study , 5 allée du Général Rouvillois, F-67083 Strasbourg, France
| | - Fouzia Boulmedais
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 23 rue du Loess, F-67034 Strasbourg Cedex, France
- University of Strasbourg Institute for Advanced Study , 5 allée du Général Rouvillois, F-67083 Strasbourg, France
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12
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Jia H, Yang T, Zuo Y, Wang W, Xu J, Lu L, Li P. Immunosensor for α-fetoprotein based on a glassy carbon electrode modified with electrochemically deposited N-doped graphene, gold nanoparticles and chitosan. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2407-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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13
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Kaur N, Prabhakar N. Current scenario in organophosphates detection using electrochemical biosensors. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.04.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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14
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Guler M, Turkoglu V, Basi Z. Determination of malation, methidathion, and chlorpyrifos ethyl pesticides using acetylcholinesterase biosensor based on Nafion/Ag@rGO-NH2 nanocomposites. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.069] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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15
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Thakur H, Kaur N, Sabherwal P, Sareen D, Prabhakar N. Aptamer based voltammetric biosensor for the detection of Mycobacterium tuberculosis antigen MPT64. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2174-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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16
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Li Y, Zhao R, Shi L, Han G, Xiao Y. Acetylcholinesterase biosensor based on electrochemically inducing 3D graphene oxide network/multi-walled carbon nanotube composites for detection of pesticides. RSC Adv 2017. [DOI: 10.1039/c7ra08226f] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A sensitive electrochemical biosensor for determining organophosphates and carbamate pesticides has been achieved by immobilizing acetylcholinesterase on electrochemically inducing 3D graphene oxide network/multi-walled carbon nanotubes composites.
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Affiliation(s)
- Yanping Li
- The Institute of Molecular Science
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Shanxi University
- Taiyuan
- China 030006
| | - Ruixia Zhao
- The Institute of Molecular Science
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Shanxi University
- Taiyuan
- China 030006
| | - Lingyun Shi
- The Institute of Molecular Science
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Shanxi University
- Taiyuan
- China 030006
| | - Gaoyi Han
- The Institute of Molecular Science
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Shanxi University
- Taiyuan
- China 030006
| | - Yaoming Xiao
- The Institute of Molecular Science
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
- Shanxi University
- Taiyuan
- China 030006
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Prabhakar N, Thakur H, Bharti A, Kaur N. Chitosan-iron oxide nanocomposite based electrochemical aptasensor for determination of malathion. Anal Chim Acta 2016; 939:108-116. [PMID: 27639149 DOI: 10.1016/j.aca.2016.08.015] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 07/29/2016] [Accepted: 08/09/2016] [Indexed: 11/30/2022]
Abstract
An electrochemical aptasensor based on chitosan-iron oxide nanocomposite (CHIT-IO) film deposited on fluorine tin Oxide (FTO) was developed for the detection of malathion. Iron oxide nanoparticles were prepared by co-precipitation method and characterized by Transmission electron microscopy and UV-Visible spectroscopy. The biotinylated DNA aptamer sequence specific to the malathion was immobilized onto the iron oxide doped-chitosan/FTO electrode by using streptavidin as linking molecule. Various characterization studies like Field Emission-Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR), and Electrochemical studies were performed to attest the successful fabrication of bioelectrodes. Experimental parameters like aptamer concentration, response time, stability of electrode and reusability studies were optimized. Aptamer immobilized chitosan-iron oxide nanocomposite (APT/SA/CHIT-IO/FTO) bioelectrodes exhibited LOD of about 0.001 ng/mL within 15 min and spike-in studies revealed about 80-92% recovery of malathion from the lettuce leaves and soil sample.
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Affiliation(s)
- Nirmal Prabhakar
- Department of Biochemistry, Panjab University, Chandigarh 160014, India.
| | - Himkusha Thakur
- Department of Biochemistry, Panjab University, Chandigarh 160014, India
| | - Anu Bharti
- Department of Biochemistry, Panjab University, Chandigarh 160014, India
| | - Navpreet Kaur
- Department of Biochemistry, Panjab University, Chandigarh 160014, India
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Conducting polymer and multi-walled carbon nanotubes nanocomposites based amperometric biosensor for detection of organophosphate. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.05.037] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Fang CS, Oh KH, Park JK, Yang H. Rapid and Sensitive Electrochemical Detection of Carbaryl Based on Enzyme Inhibition and Thiocholine Oxidation Mediated by a Ruthenium(III) Complex. ELECTROANAL 2016. [DOI: 10.1002/elan.201600308] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Chiew San Fang
- Department of Chemistry and Chemistry Institute for Functional Materials; Pusan National University; Busan 609-735 Korea
| | - Kyung Hwan Oh
- Department of Chemistry and Chemistry Institute for Functional Materials; Pusan National University; Busan 609-735 Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute for Functional Materials; Pusan National University; Busan 609-735 Korea
| | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials; Pusan National University; Busan 609-735 Korea
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Talarico D, Arduini F, Amine A, Cacciotti I, Moscone D, Palleschi G. Screen-printed electrode modified with carbon black and chitosan: a novel platform for acetylcholinesterase biosensor development. Anal Bioanal Chem 2016; 408:7299-309. [DOI: 10.1007/s00216-016-9604-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/20/2016] [Accepted: 04/26/2016] [Indexed: 10/21/2022]
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21
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Label-free immunosensor based on one-step electrodeposition of chitosan-gold nanoparticles biocompatible film on Au microelectrode for determination of aflatoxin B1 in maize. Biosens Bioelectron 2016; 80:222-229. [PMID: 26851579 DOI: 10.1016/j.bios.2016.01.063] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 01/26/2016] [Accepted: 01/27/2016] [Indexed: 11/24/2022]
Abstract
Gold nanoparticles (AuNPs) embedded in chitosan (CHI) film, well-dispersed and smaller in size (about 10 nm), were fabricated by one-step electrodeposion on Au microelectrode in solution containing chitosan and chloride trihydrate. The nano-structure CHI-AuNPs composite film offers abundant amine groups, good conductivity, excellent biocompatibility and stability for antibody immobilization. The combination of aflatoxin B1 (AFB1) with immobilized antibody introduces a barrier to electron transfer, resulting in current decreasement. The morphologies and characterizations of modified microelectrodes were investigated by scanning electron microscope (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and Fourier transform infrared spectroscopy (FT-IR). The proposed non-enzyme and label-free immunosensor exhibited high sensitive amperometric response to AFB1 concentration in two linear ranges of 0.1 to 1 ng mL(-1) and 1 to 30 ng mL(-1), with the detection limit of 0.06 ng mL(-1) (S/N=3). The immunoassay was also applied for analysis of maize samples spiked with AFB1. Considering the sample extraction procedure, the linear range and limit of detection were assessed to be 1.6-16 ng mL(-1) and 0.19 ng mL(-1) respectively. The simple method showed good fabrication controllability and reproducibility for immunosensor design.
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Bao J, Hou C, Chen M, Li J, Huo D, Yang M, Luo X, Lei Y. Plant Esterase-Chitosan/Gold Nanoparticles-Graphene Nanosheet Composite-Based Biosensor for the Ultrasensitive Detection of Organophosphate Pesticides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:10319-10326. [PMID: 26554573 DOI: 10.1021/acs.jafc.5b03971] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
As broad-spectrum pesticides, organophosphates (OPs) are widely used in agriculture all over the world. However, due to their neurotoxicity in humans and their increasing occurrence in the environment, there is growing interest in their sensitive and selective detection. This paper reports a new cost-effective plant esterase-chitosan/gold nanoparticles-graphene nanosheet (PLaE-CS/AuNPs-GNs) biosensor for the sensitive detection of methyl parathion and malathion. Highly pure plant esterase is produced from plants at low cost and shares the same inhibition mechanism with OPs as acetylcholinesterase, and then it was used to prepare PLaE-CS/AuNPs-GNs nanocomposites, which were systematically characterized using SEM, TEM, and UV-vis. The PLaE-CS/AuNPs-GNs composite-based biosensor measured as low as 50 ppt (0.19 nM) of methyl parathion and 0.5 ppb (1.51 nM) of malathion (S/N = 3) with a calibration curve up to 200 ppb (760 nM) and 500 ppb (1513.5 nM) for methyl parathion and malathion, respectively. There is also no interference observed from most of common species such as metal ions, inorganic ions, glucose, and citric acid. In addition, its applicability to OPs-contaminated real samples (carrot and apple) was also demonstrated with excellent response recovery. The developed simple, sensitive, and reliable PLaE-CS/AuNPs-GNs composite-based biosensor holds great potential in OPs detection for food and environmental safety.
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Affiliation(s)
- Jing Bao
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Changjun Hou
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Mei Chen
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Junjie Li
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Danqun Huo
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Mei Yang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Xiaogang Luo
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Yu Lei
- Department of Chemical and Biomolecular Engineering, University of Connecticut , 191 Auditorium Road, Unit 3222, Storrs, Connecticut 06269, United States
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Affiliation(s)
- Wen Zhou
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Recognition and Biosensing, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xia Gao
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Recognition and Biosensing, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Dingbin Liu
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Recognition and Biosensing, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
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Liu Q, Fei A, Huan J, Mao H, Wang K. Effective amperometric biosensor for carbaryl detection based on covalent immobilization acetylcholinesterase on multiwall carbon nanotubes/graphene oxide nanoribbons nanostructure. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.12.037] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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25
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Chitosan to Connect Biology to Electronics: Fabricating the Bio-Device Interface and Communicating Across This Interface. Polymers (Basel) 2014. [DOI: 10.3390/polym7010001] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Abstract
Chloroform classified as one of the hazardous chemical to human. Therefore, monitoring the chloroform concentration in air is vital. In this study, chitosan powder was dissolved in 2% of acetic acid to form chitosan solution gel. It was subsequently deposited on printed circuit board (PCB) by using electrochemical deposition technique. The response of the chitosan sensor towards chloroform was tested via electrical testing by exposing different chloroform concentration ranging from 10 ppm, 20 ppm, 30 ppm, 40 ppm, and 50 ppm using air exposure technique. The response of the chitosan sensor towards chloroform was recorded as output voltage. Sensing properties of the chitosan sensor which include sensitivity, stability, recovery, and repeatability were studied. The electrical result showed that output voltage increases as the concentration of chloroform increases. All the sensing properties were achieved. The structure characterization of the chitosan was studied using Fourier Transform Infrared Spectroscopy (FTIR). The appearance of N-H and O-H groups in FTIR spectrum of chitosan film provides evidence that the domain functional group exist in chitosan after it was processed into film.
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Tseng TTC, Chang CF, Chan WC. Fabrication of implantable, enzyme-immobilized glutamate sensors for the monitoring of glutamate concentration changes in vitro and in vivo. Molecules 2014; 19:7341-55. [PMID: 24905604 PMCID: PMC6271204 DOI: 10.3390/molecules19067341] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/30/2014] [Accepted: 06/03/2014] [Indexed: 11/16/2022] Open
Abstract
Glutamate sensors based on the immobilization of glutamate oxidase (GlutOx) were prepared by adsorption on electrodeposited chitosan (Method 1) and by crosslinking with glutaraldehyde (Method 2) on micromachined platinum microelectrodes. It was observed that glutamate sensors prepared by Method 1 have faster response time (<2 s) and lower detection limit (2.5 ± 1.1 μM) compared to that prepared by Method 2 (response time: <5 sec and detection limit: 6.5 ± 1.7 μM); glutamate sensors prepared by Method 2 have a larger linear detection range (20–352 μM) and higher sensitivity (86.8 ± 8.8 nA·μM−1·cm−2, N = 12) compared to those prepared by Method 1 (linear detection range: 20–217 μM and sensitivity: 34.9 ± 4.8 nA·μM−1·cm−2, N = 8). The applicability of the glutamate sensors in vivo was also demonstrated. The glutamate sensors were implanted into the rat brain to monitor the stress-induced extracellular glutamate release in the hypothalamus of the awake, freely moving rat.
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Affiliation(s)
- Tina T-C Tseng
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Cheng-Fu Chang
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei 11031, Taiwan.
| | - Wen-Chin Chan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
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Liu H, Lu D, Li P, Chen Y, Zhou Y, Lu T. One-step electrodeposition of chitosan/phosphonate iron(III) hybrids film and its pH-controlled switchable electrocatalytic behavior. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Huang SH, Wei LS, Chu HT, Jiang YL. Light-addressed electrodeposition of enzyme-entrapped chitosan membranes for multiplexed enzyme-based bioassays using a digital micromirror device. SENSORS 2013; 13:10711-24. [PMID: 23959236 PMCID: PMC3812624 DOI: 10.3390/s130810711] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 08/05/2013] [Accepted: 08/14/2013] [Indexed: 12/02/2022]
Abstract
This paper describes a light-addressed electrolytic system used to perform an electrodeposition of enzyme-entrapped chitosan membranes for multiplexed enzyme-based bioassays using a digital micromirror device (DMD). In this system, a patterned light illumination is projected onto a photoconductive substrate serving as a photo-cathode to electrolytically produce hydroxide ions, which leads to an increased pH gradient. The high pH generated at the cathode can cause a local gelation of chitosan through sol-gel transition. By controlling the illumination pattern on the DMD, a light-addressed electrodeposition of chitosan membranes with different shapes and sizes, as well as multiplexed micropatterning, was performed. The effect of the illumination time of the light pattern on the dimensional resolution of chitosan membrane formation was examined experimentally. Moreover, multiplexed enzyme-based bioassay of enzyme-entrapped chitosan membranes was also successfully demonstrated through the electrodeposition of the chitosan membranes with various shapes/sizes and entrapping different enzymes. As a model experiment, glucose and ethanol were simultaneously detected in a single detection chamber without cross-talk using shape-coded chitosan membranes entrapped with glucose oxidase (GOX), peroxidase (POD), and Amplex Red (AmR) or alcohol oxidase (AOX), POD, and AmR by using same fluorescence indicator (AmR).
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Affiliation(s)
- Shih-Hao Huang
- Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University, Keelung 202-24, Taiwan; E-Mails: (L.-S.W.); (H.-T.C.)
- Center for Marine Mechatronic Systems, CMMS, National Taiwan Ocean University, Keelung 202-24, Taiwan
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-2-246-22-192 (ext. 3209); Fax: +886-2-246-20-836
| | - Lu-Shiuan Wei
- Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University, Keelung 202-24, Taiwan; E-Mails: (L.-S.W.); (H.-T.C.)
| | - Hsiao-Tzu Chu
- Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University, Keelung 202-24, Taiwan; E-Mails: (L.-S.W.); (H.-T.C.)
| | - Yeu-Long Jiang
- Graduate Institute of Optoelectronic Engineering, Department of Electrical Engineering, National Chung Hsing University, Taichung 402-27, Taiwan; E-Mail:
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Kanik FE, Kolb M, Timur S, Bahadir M, Toppare L. An amperometric acetylcholine biosensor based on a conducting polymer. Int J Biol Macromol 2013; 59:111-8. [DOI: 10.1016/j.ijbiomac.2013.04.028] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 04/11/2013] [Accepted: 04/11/2013] [Indexed: 11/30/2022]
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Saha K, Agasti SS, Kim C, Li X, Rotello VM. Gold nanoparticles in chemical and biological sensing. Chem Rev 2012; 112:2739-79. [PMID: 22295941 PMCID: PMC4102386 DOI: 10.1021/cr2001178] [Citation(s) in RCA: 2759] [Impact Index Per Article: 229.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Krishnendu Saha
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Sarit S. Agasti
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Chaekyu Kim
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Xiaoning Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
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Li Y, Han G. Retracted article: Ionic liquid-functionalized graphene for fabricating an amperometric acetylcholinesterase biosensor. Analyst 2012; 137:3160-5. [DOI: 10.1039/c2an35065c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rassaei L, Marken F, Sillanpää M, Amiri M, Cirtiu CM, Sillanpää M. Nanoparticles in electrochemical sensors for environmental monitoring. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2011.05.009] [Citation(s) in RCA: 189] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wu S, Lan X, Cui L, Zhang L, Tao S, Wang H, Han M, Liu Z, Meng C. Application of graphene for preconcentration and highly sensitive stripping voltammetric analysis of organophosphate pesticide. Anal Chim Acta 2011; 699:170-6. [DOI: 10.1016/j.aca.2011.05.032] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 05/15/2011] [Accepted: 05/17/2011] [Indexed: 10/18/2022]
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A novel biosensor based on acetylecholinesterase/prussian blue–chitosan modified electrode for detection of carbaryl pesticides. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.06.054] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Xie Y, Chen A, Du D, Lin Y. Graphene-based immunosensor for electrochemical quantification of phosphorylated p53 (S15). Anal Chim Acta 2011; 699:44-8. [DOI: 10.1016/j.aca.2011.05.010] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 04/28/2011] [Accepted: 05/08/2011] [Indexed: 10/18/2022]
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Wang K, Liu Q, Dai L, Yan J, Ju C, Qiu B, Wu X. A highly sensitive and rapid organophosphate biosensor based on enhancement of CdS–decorated graphene nanocomposite. Anal Chim Acta 2011; 695:84-8. [DOI: 10.1016/j.aca.2011.03.042] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 01/19/2011] [Accepted: 03/23/2011] [Indexed: 10/18/2022]
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38
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Bracamonte MV, Bollo S, Labbé P, Rivas GA, Ferreyra NF. Quaternized chitosan as support for the assembly of gold nanoparticles and glucose oxidase: Physicochemical characterization of the platform and evaluation of its biocatalytic activity. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.10.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Wang K, Li HN, Wu J, Ju C, Yan JJ, Liu Q, Qiu B. TiO2-decorated graphene nanohybrids for fabricating an amperometric acetylcholinesterase biosensor. Analyst 2011; 136:3349-54. [DOI: 10.1039/c1an15227k] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Koev ST, Dykstra PH, Luo X, Rubloff GW, Bentley WE, Payne GF, Ghodssi R. Chitosan: an integrative biomaterial for lab-on-a-chip devices. LAB ON A CHIP 2010; 10:3026-3042. [PMID: 20877781 DOI: 10.1039/c0lc00047g] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Chitosan is a naturally derived polymer with applications in a variety of industrial and biomedical fields. Recently, it has emerged as a promising material for biological functionalization of microelectromechanical systems (bioMEMS). Due to its unique chemical properties and film forming ability, chitosan serves as a matrix for the assembly of biomolecules, cells, nanoparticles, and other substances. The addition of these components to bioMEMS devices enables them to perform functions such as specific biorecognition, enzymatic catalysis, and controlled drug release. The chitosan film can be integrated in the device by several methods compatible with standard microfabrication technology, including solution casting, spin casting, electrodeposition, and nanoimprinting. This article surveys the usage of chitosan in bioMEMS to date. We discuss the common methods for fabrication, modification, and characterization of chitosan films, and we review a number of demonstrated chitosan-based microdevices. We also highlight the advantages of chitosan over some other functionalization materials for micro-scale devices.
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Affiliation(s)
- S T Koev
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA
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41
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Enzyme immobilization strategies and electropolymerization conditions to control sensitivity and selectivity parameters of a polymer-enzyme composite glucose biosensor. SENSORS 2010; 10:6439-62. [PMID: 22163559 PMCID: PMC3231131 DOI: 10.3390/s100706439] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Revised: 05/21/2010] [Accepted: 06/13/2010] [Indexed: 11/17/2022]
Abstract
In an ongoing programme to develop characterization strategies relevant to biosensors for in-vivo monitoring, glucose biosensors were fabricated by immobilizing the enzyme glucose oxidase (GOx) on 125 μm diameter Pt cylinder wire electrodes (Pt(C)), using three different methods: before, after or during the amperometric electrosynthesis of poly(ortho-phenylenediamine), PoPD, which also served as a permselective membrane. These electrodes were calibrated with H(2)O(2) (the biosensor enzyme signal molecule), glucose, and the archetypal interference compound ascorbic acid (AA) to determine the relevant polymer permeabilities and the apparent Michaelis-Menten parameters for glucose. A number of selectivity parameters were used to identify the most successful design in terms of the balance between substrate sensitivity and interference blocking. For biosensors electrosynthesized in neutral buffer under the present conditions, entrapment of the GOx within the PoPD layer produced the design (Pt(C)/PoPD-GOx) with the highest linear sensitivity to glucose (5.0 ± 0.4 μA cm(-2) mM(-1)), good linear range (K(M) = 16 ± 2 mM) and response time (< 2 s), and the greatest AA blocking (99.8% for 1 mM AA). Further optimization showed that fabrication of Pt(C)/PoPD-GOx in the absence of added background electrolyte (i.e., electropolymerization in unbuffered enzyme-monomer solution) enhanced glucose selectivity 3-fold for this one-pot fabrication protocol which provided AA-rejection levels at least equal to recent multi-step polymer bilayer biosensor designs. Interestingly, the presence of enzyme protein in the polymer layer had opposite effects on permselectivity for low and high concentrations of AA, emphasizing the value of studying the concentration dependence of interference effects which is rarely reported in the literature.
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42
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Liu Y, Kim E, Ghodssi R, Rubloff GW, Culver JN, Bentley WE, Payne GF. Biofabrication to build the biology–device interface. Biofabrication 2010; 2:022002. [DOI: 10.1088/1758-5082/2/2/022002] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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43
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Li Y, Gan Z, Li Y, Liu Q, Bao J, Dai Z, Han M. Immobilization of acetylcholinesterase on one-dimensional gold nanoparticles for detection of organophosphorous insecticides. Sci China Chem 2010. [DOI: 10.1007/s11426-010-0105-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Effects of polymerization potential on the permselectivity of poly(o-phenylenediamine) coatings deposited on Pt–Ir electrodes for biosensor applications. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2009.09.069] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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45
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Lisha KP, Pradeep T. Enhanced visual detection of pesticides using gold nanoparticles. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2009; 44:697-705. [PMID: 20183080 DOI: 10.1080/03601230903163814] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The presence of parts per billion (ppb) levels of chlorpyrifos (O,O-Diethyl-O-(3,5,6-trichloro-2-pyridyl) phosphorothioate) and malathion (S-1,2-bis(ethoxycarbonyl) ethyl O,O-dimethyl phosphorodithioate), two common pesticides found in the surface waters of developing countries, have been visually detected using gold nanoparticles. Visual detection of the presence of pesticide is possible when the color change occurring by the adsorption of pesticides on gold nanoparticles is enhanced by sodium sulfate. The method presented here is simple and there is no need of sample preparation or preconcentration. The response occurs within seconds and the color change is very clear. The detection is possible if chlorpyrifos and malathion are present up to a concentration of 20 and 100 ppb, respectively. The method shows great potential for on-site pesticide monitoring. The method is also applicable as a qualitative technique for the performance evaluation of various household water filters, which claim pesticide removal.
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Affiliation(s)
- Kinattukara Parambil Lisha
- Department of Chemistry and Sophisticated Analytical Instrument Facility, Indian Institute of Technology Madras, Chennai, India
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46
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Liang RP, Fan LX, Wang R, Qiu JD. One-Step Electrochemically Deposited Nanocomposite Film of CS-Fc/MWNTs/GOD for Glucose Biosensor Application. ELECTROANAL 2009. [DOI: 10.1002/elan.200804596] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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47
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Rothwell SA, Kinsella ME, Zain ZM, Serra PA, Rocchitta G, Lowry JP, O'Neill RD. Contributions by a novel edge effect to the permselectivity of an electrosynthesized polymer for microbiosensor applications. Anal Chem 2009; 81:3911-8. [PMID: 19371060 DOI: 10.1021/ac900162c] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Pt electrodes of different sizes (2 x 10(-5)-2 x 10(-2) cm(2)) and geometries (disks and cylinders) were coated with the ultrathin non-conducting form of poly(o-phenylenediamine), PPD, using amperometric electrosynthesis. Analysis of the ascorbic acid (AA) and H(2)O(2) apparent permeabilities for these Pt/PPD sensors revealed that the PPD deposited near the electrode insulation (Teflon or glass edge) was not as effective as the bulk surface PPD for blocking AA access to the Pt substrate. This discovery impacts on the design of implantable biosensors where electrodeposited polymers, such as PPD, are commonly used as the permselective barrier to block electroactive interference by reducing agents present in the target medium. The undesirable "edge effect" was particularly marked for small disk electrodes which have a high edge density (ratio of PPD-insulation edge length to electrode area), but was essentially absent for cylinder electrodes with a length of >0.2 mm. Sample biosensors, with a configuration based on these findings (25 microm diameter Pt fiber cylinders) and designed for brain neurotransmitter L-glutamate, behaved well in vitro in terms of Glu sensitivity and AA blocking.
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Affiliation(s)
- Sharon A Rothwell
- UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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48
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Andreescu S, Njagi J, Ispas C, Ravalli MT. JEM Spotlight: Applications of advanced nanomaterials for environmental monitoring. ACTA ACUST UNITED AC 2009; 11:27-40. [DOI: 10.1039/b811063h] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Barry RC, Lin Y, Wang J, Liu G, Timchalk CA. Nanotechnology-based electrochemical sensors for biomonitoring chemical exposures. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2009; 19:1-18. [PMID: 19018275 PMCID: PMC2909474 DOI: 10.1038/jes.2008.71] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2008] [Revised: 07/30/2008] [Accepted: 09/23/2008] [Indexed: 05/27/2023]
Abstract
The coupling of dosimetry measurements and modeling represents a promising strategy for deciphering the relationship between chemical exposure and disease outcome. To support the development and implementation of biological monitoring programs, quantitative technologies for measuring xenobiotic exposure are needed. The development of portable nanotechnology-based electrochemical (EC) sensors has the potential to meet the needs for low cost, rapid, high-throughput, and ultrasensitive detectors for biomonitoring an array of chemical markers. Highly selective EC sensors capable of pM sensitivity, high-throughput and low sample requirements (<50 microl) are discussed. These portable analytical systems have many advantages over currently available technologies, thus potentially representing the next generation of biomonitoring analyzers. This paper highlights research focused on the development of field-deployable analytical instruments based on EC detection. Background information and a general overview of EC detection methods and integrated use of nanomaterials in the development of these sensors are provided. New developments in EC sensors using various types of screen-printed electrodes, integrated nanomaterials, and immunoassays are presented. Recent applications of EC sensors for assessing exposure to pesticides or detecting biomarkers of disease are highlighted to demonstrate the ability to monitor chemical metabolites, enzyme activity, or protein biomarkers of disease. In addition, future considerations and opportunities for advancing the use of EC platforms for dosimetric studies are discussed.
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Affiliation(s)
- Richard C Barry
- aBiological Monitoring and Modeling Group, Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
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50
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Rothwell SA, Killoran SJ, Neville EM, Crotty AM, O’Neill RD. Poly(o-phenylenediamine) electrosynthesized in the absence of added background electrolyte provides a new permselectivity benchmark for biosensor applications. Electrochem commun 2008. [DOI: 10.1016/j.elecom.2008.05.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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