151
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Shtenberg G, Massad-Ivanir N, Segal E. Detection of trace heavy metal ions in water by nanostructured porous Si biosensors. Analyst 2015; 140:4507-14. [DOI: 10.1039/c5an00248f] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Specific and sensitive detection and quantification of heavy metals in real water using label-free optical biosensors.
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Affiliation(s)
- Giorgi Shtenberg
- The Inter-Departmental Program of Biotechnology
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
| | - Naama Massad-Ivanir
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering
- Technion – Israel Institute of Technology
- Haifa 32000
- Israel
- The Russell Berrie Nanotechnology Institute
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152
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Gan X, Zhao H, Chen S, Quan X. Electrochemical DNA sensor for specific detection of picomolar Hg(ii) based on exonuclease III-assisted recycling signal amplification. Analyst 2015; 140:2029-36. [DOI: 10.1039/c5an00082c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An ultrasensitive methodology was successfully developed for the quantitative detection of picomolar Hg2+ based on the combination of thymine–Hg2+–thymine (T–Hg2+–T) coordination chemistry and exonuclease III-aided recycling signal amplification.
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Affiliation(s)
- Xiaorong Gan
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
| | - Huimin Zhao
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
| | - Shuo Chen
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
| | - Xie Quan
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
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153
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Méndez-Albores A, Tarín C, Rebollar-Pérez G, Dominguez-Ramirez L, Torres E. Biocatalytic spectrophotometric method to detect paracetamol in water samples. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2015; 50:1046-1056. [PMID: 26121020 DOI: 10.1080/10934529.2015.1038179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A biocatalytic methodology based on the quantification of the laccase inhibition during the oxidation of a standard substrate ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) for the indirect determination of paracetamol in drinking water has been developed. The method displayed a fast response time (20 s), and high selectivity to paracetamol in presence of interfering substances such as naproxen, estradiol, ketoprofen, sulfamethoxazole, and diclofenac. The limit of detection (LOD) and limit of quantification (LOQ) were noticed to be 0.55 µM and 8.3 µM, respectively. By comparing the catalytic constants value KM and kcat for ABTS oxidation in the absence and presence of various concentrations of paracetamol, a competitive-type inhibition was disclosed. On the other hand, the close value between Ki and KM indicates similar binding affinity of the enzyme to ABTS and paracetamol corroborated by docking studies. The methodology was successfully applied to real water samples, presenting an interesting potential for further development of a biosensor to paracetamol detection.
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Affiliation(s)
- Alia Méndez-Albores
- a Environmental Sciences Graduate Department, University of Puebla , Puebla , México
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154
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Attar A, Ghica ME, Amine A, Brett CMA. Comparison of Cobalt Hexacyanoferrate and Poly(Neutral Red) Modified Carbon Film Electrodes for the Amperometric Detection of Heavy Metals Based on Glucose Oxidase Enzyme Inhibition. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.952372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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155
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Cao A, Mescher M, Bosma D, Klootwijk JH, Sudhölter EJR, Smet LCD. Ionophore-Containing Siloprene Membranes: Direct Comparison between Conventional Ion-Selective Electrodes and Silicon Nanowire-Based Field-Effect Transistors. Anal Chem 2014; 87:1173-9. [DOI: 10.1021/ac504500s] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Anping Cao
- Department
of Chemical Engineering, Delft University of Technology, Julianalaan
136, 2628 BL Delft, The Netherlands
| | - Marleen Mescher
- Department
of Chemical Engineering, Delft University of Technology, Julianalaan
136, 2628 BL Delft, The Netherlands
- Philips Research Laboratories, High Tech Campus 4, 5656 AE Eindhoven, The Netherlands
- Materials innovation institute M2i, Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Duco Bosma
- Department
of Chemical Engineering, Delft University of Technology, Julianalaan
136, 2628 BL Delft, The Netherlands
| | - Johan H. Klootwijk
- Philips Research Laboratories, High Tech Campus 4, 5656 AE Eindhoven, The Netherlands
| | - Ernst J. R. Sudhölter
- Department
of Chemical Engineering, Delft University of Technology, Julianalaan
136, 2628 BL Delft, The Netherlands
| | - Louis C.P.M. de Smet
- Department
of Chemical Engineering, Delft University of Technology, Julianalaan
136, 2628 BL Delft, The Netherlands
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156
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Sabullah MK, Sulaiman MR, Shukor MS, Yusof MT, Johari WLW, Shukor MY, Syahir A. Heavy metals biomonitoring via inhibitive assay of acetylcholinesterase from Periophthalmodon schlosseri. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2014. [DOI: 10.1007/s12210-014-0359-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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157
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Sulaiman S, Mokhtar MN, Naim MN, Baharuddin AS, Sulaiman A. A Review: Potential Usage of Cellulose Nanofibers (CNF) for Enzyme Immobilization via Covalent Interactions. Appl Biochem Biotechnol 2014; 175:1817-42. [DOI: 10.1007/s12010-014-1417-x] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 11/17/2014] [Indexed: 12/29/2022]
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158
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Scognamiglio V, Arduini F, Palleschi G, Rea G. Biosensing technology for sustainable food safety. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.07.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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159
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Piezoelectric biosensors for organophosphate and carbamate pesticides: a review. BIOSENSORS-BASEL 2014; 4:301-17. [PMID: 25587424 PMCID: PMC4264360 DOI: 10.3390/bios4030301] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 07/28/2014] [Accepted: 08/07/2014] [Indexed: 11/17/2022]
Abstract
Due to the great amount of pesticides currently being used, there is an increased interest for developing biosensors for their detection. Among all the physical transducers, piezoelectric systems have emerged as the most attractive due to their simplicity, low instrumentation costs, possibility for real-time and label-free detection and generally high sensitivity. This paper presents an overview of biosensors based on the quartz crystal microbalance, which have been reported in the literature for organophosphate and carbamate pesticide analysis.
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160
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Attar A, Emilia Ghica M, Amine A, Brett CMA. Poly(neutral red) based hydrogen peroxide biosensor for chromium determination by inhibition measurements. JOURNAL OF HAZARDOUS MATERIALS 2014; 279:348-355. [PMID: 25080156 DOI: 10.1016/j.jhazmat.2014.07.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 07/09/2014] [Accepted: 07/12/2014] [Indexed: 06/03/2023]
Abstract
Amperometric hydrogen peroxide enzyme inhibition biosensors based on horseradish peroxidase (HRP) immobilised on electropolymerised neutral red (NR) or directly on the surface of carbon film electrodes (CFE) have been successfully applied to the determination of toxic Cr(III) and Cr(VI). Parameters influencing the performance of the biosensor including the enzyme immobilisation method, the amount of hydrogen peroxide, applied potential and electrolyte pH were optimised. The inhibition of horseradish peroxidase by the chromium species was studied under the optimised conditions. Results from the quantitative analysis of chromium ions are discussed in terms of detection limit, linear range and sensitivity. The HRP kinetic interactions reveal mixed binding of Cr(III) with I50=3.8μM and inhibition binding constant Ki=11.3μM at HRP/PNR/CFE biosensors and uncompetitive binding of Cr(VI) with I50=3.9μM and Ki=0.78μM at HRP/CFE biosensors in the presence of H2O2 substrate. Interferences from other heavy metal ions were studied and the inhibition show very good selectivity towards Cr(III) and Cr(VI).
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Affiliation(s)
- Aisha Attar
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 3004-535 Coimbra, Portugal; Faculty of Science and Techniques, University Hassan II Mohammedia, BP 146, Mohammedia 20650, Morocco
| | - M Emilia Ghica
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | - Aziz Amine
- Faculty of Science and Techniques, University Hassan II Mohammedia, BP 146, Mohammedia 20650, Morocco.
| | - Christopher M A Brett
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 3004-535 Coimbra, Portugal.
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161
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Attar A, Cubillana-Aguilera L, Naranjo-Rodríguez I, de Cisneros JLHH, Palacios-Santander JM, Amine A. Amperometric inhibition biosensors based on horseradish peroxidase and gold sononanoparticles immobilized onto different electrodes for cyanide measurements. Bioelectrochemistry 2014; 101:84-91. [PMID: 25179932 DOI: 10.1016/j.bioelechem.2014.08.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 08/07/2014] [Accepted: 08/08/2014] [Indexed: 12/16/2022]
Abstract
New biosensors based on inhibition for the detection of cyanide and the comparison of the analytical performances of nine enzyme biosensor designs by using three different electrodes: Sonogel-Carbon, glassy carbon and gold electrodes were discussed. Three different horseradish peroxidase immobilization procedures with and without gold sononanoparticles were studied. The amperometric measurements were performed at an applied potential of -0.15V vs. Ag/AgCl in 50mM sodium acetate buffer solution pH=5.0. The apparent kinetic parameters (Kmapp, Vmaxapp) of immobilized HRP were calculated in the absence of inhibitor (cyanide) by using caffeic acid, hydroquinone, and catechol as substrates. The presence of gold sononanoparticles enhanced the electron transfer reaction and improved the analytical performance of the biosensors. The HRP kinetic interactions reveal non-competitive binding of cyanide with an apparent inhibition constant (Ki) of 2.7μM and I50 of 1.3μM. The determination of cyanide can be achieved in a dynamic range of 0.1-58.6μM with a detection limit of 0.03μM which is lower than those reported by previous studies. Hence this biosensing methodology can be used as a new promising approach for detecting cyanide.
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Affiliation(s)
- Aisha Attar
- Faculty of Science and Techniques, University Hassan II Mohammedia, BP 146, Mohammedia 20650, Morocco; Departamento de Química Analítica, Instituto Universitario de Investigación en Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, Puerto Real, Cádiz 11510, Spain
| | - Laura Cubillana-Aguilera
- Departamento de Química Analítica, Instituto Universitario de Investigación en Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, Puerto Real, Cádiz 11510, Spain
| | - Ignacio Naranjo-Rodríguez
- Departamento de Química Analítica, Instituto Universitario de Investigación en Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, Puerto Real, Cádiz 11510, Spain
| | - José Luis Hidalgo-Hidalgo de Cisneros
- Departamento de Química Analítica, Instituto Universitario de Investigación en Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, Puerto Real, Cádiz 11510, Spain
| | - José María Palacios-Santander
- Departamento de Química Analítica, Instituto Universitario de Investigación en Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Universitario de Puerto Real, Polígono del Río San Pedro S/N, Puerto Real, Cádiz 11510, Spain.
| | - Aziz Amine
- Faculty of Science and Techniques, University Hassan II Mohammedia, BP 146, Mohammedia 20650, Morocco.
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162
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Saleem M, Lee LP, Lee KH. Photoluminescent sensor for acetylcholinesterase inhibitor determination. J Mater Chem B 2014; 2:6802-6808. [DOI: 10.1039/c4tb01239a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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163
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Kalia A, Parshad VR. Novel Trends to Revolutionize Preservation and Packaging of Fruits/Fruit Products: Microbiological and Nanotechnological Perspectives. Crit Rev Food Sci Nutr 2014; 55:159-82. [DOI: 10.1080/10408398.2011.649315] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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164
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Heck T, Pham PH, Hammes F, Thöny-Meyer L, Richter M. Continuous Monitoring of Enzymatic Reactions on Surfaces by Real-Time Flow Cytometry: Sortase A Catalyzed Protein Immobilization as a Case Study. Bioconjug Chem 2014; 25:1492-500. [DOI: 10.1021/bc500230r] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Tobias Heck
- Laboratory
for Bioactive Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Phu-Huy Pham
- Laboratory
for Bioactive Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Frederik Hammes
- Department
of Environmental Microbiology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Linda Thöny-Meyer
- Laboratory
for Bioactive Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Michael Richter
- Laboratory
for Bioactive Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
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165
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Bio-mimetic sensors based on molecularly imprinted membranes. SENSORS 2014; 14:13863-912. [PMID: 25196110 PMCID: PMC4179059 DOI: 10.3390/s140813863] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/16/2014] [Accepted: 07/21/2014] [Indexed: 12/16/2022]
Abstract
An important challenge for scientific research is the production of artificial systems able to mimic the recognition mechanisms occurring at the molecular level in living systems. A valid contribution in this direction resulted from the development of molecular imprinting. By means of this technology, selective molecular recognition sites are introduced in a polymer, thus conferring it bio-mimetic properties. The potential applications of these systems include affinity separations, medical diagnostics, drug delivery, catalysis, etc. Recently, bio-sensing systems using molecularly imprinted membranes, a special form of imprinted polymers, have received the attention of scientists in various fields. In these systems imprinted membranes are used as bio-mimetic recognition elements which are integrated with a transducer component. The direct and rapid determination of an interaction between the recognition element and the target analyte (template) was an encouraging factor for the development of such systems as alternatives to traditional bio-assay methods. Due to their high stability, sensitivity and specificity, bio-mimetic sensors-based membranes are used for environmental, food, and clinical uses. This review deals with the development of molecularly imprinted polymers and their different preparation methods. Referring to the last decades, the application of these membranes as bio-mimetic sensor devices will be also reported.
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166
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Xu Q, Cai L, Zhao H, Tang J, Shen Y, Hu X, Zeng H. Forchlorfenuron detection based on its inhibitory effect towards catalase immobilized on boron nitride substrate. Biosens Bioelectron 2014; 63:294-300. [PMID: 25108110 DOI: 10.1016/j.bios.2014.07.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/12/2014] [Accepted: 07/22/2014] [Indexed: 12/20/2022]
Abstract
An enzymatic procedure based on a catalase biosensor for the detection of forchlorfenuron (CPPU) has been reported in this work. Catalase was immobilized on boron nitride (BN) sheets dispersed in chitosan by adsorption. The immobilized catalase exhibited direct electron transfer character and excellent electrocatalytic activity towards H2O2 reduction. After introducing CPPU into the H2O2 containing phosphate buffer solution, the catalase-catalyzed H2O2 reduction current decreased. By measuring the current decrease, CPPU can be determined in the range of 0.5-10.0 µM with the detection limit of 0.07 μM. The non-competitive inhibition behavior of CPPU towards catalase was verified by the Lineweaver-Burk plots. Long stability character has been ascribed to this biosensor. Possible use of this biosensor in flow systems is illustrated. The proposed biosensor has been successfully applied to CPPU determination in fruits samples with satisfactory results.
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Affiliation(s)
- Qin Xu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Lijuan Cai
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Huijie Zhao
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiaqian Tang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yuanyuan Shen
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Xiaoya Hu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Haibo Zeng
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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167
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Immobilization of Tyrosinase from Avocado Crude Extract in Polypyrrole Films for Inhibitive Detection of Benzoic Acid. CHEMOSENSORS 2014. [DOI: 10.3390/chemosensors2030182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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168
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Rao MA, Scelza R, Acevedo F, Diez MC, Gianfreda L. Enzymes as useful tools for environmental purposes. CHEMOSPHERE 2014; 107:145-162. [PMID: 24411841 DOI: 10.1016/j.chemosphere.2013.12.059] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 12/02/2013] [Accepted: 12/13/2013] [Indexed: 06/03/2023]
Abstract
In the environment enzymes may play important and different roles at least in three cases: as main agents (as isolated, cell-bound or immobilized enzymes) in charge of either the transformation and/or degradation of compounds polluting the environment and the restoration of the polluted environment; as reliable and sensitive tools to detect and measure the amount and concentration of pollutants before, during and after the restoration process; as reliable, easy and sensitive indicators of quality and health status of the environment subjected to the restoration process. To our knowledge papers or reviews integrating findings on these three functions of enzymes are missing in literature. Therefore the main scope of the present paper is to briefly encompass general and specific concepts about roles of enzymes as decontaminating agents, pollutant assaying agents and indicators of environment safety. Examples chosen among those published very recently, supporting and confirming peculiarities, features, and performance of enzymatic agents will be illustrated.
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Affiliation(s)
- M A Rao
- Dipartimento di Agraria, Università di Napoli Federico II, Portici, Napoli, Italy.
| | - R Scelza
- Dipartimento di Agraria, Università di Napoli Federico II, Portici, Napoli, Italy
| | - F Acevedo
- Centre of Food Biotechnology and Bioseparations, BIOREN, Universidad de La Frontera, Temuco, Chile
| | - M C Diez
- Environmental Biotechnology Center, BIOREN, Universidad de La Frontera, Temuco, Chile
| | - L Gianfreda
- Dipartimento di Agraria, Università di Napoli Federico II, Portici, Napoli, Italy
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169
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Calvo-Pérez A, Domínguez-Renedo O, Alonso-Lomillo MA, Arcos-Martínez MJ. Speciation of chromium using chronoamperometric biosensors based on screen-printed electrodes. Anal Chim Acta 2014; 833:15-21. [PMID: 24909769 DOI: 10.1016/j.aca.2014.05.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/30/2014] [Accepted: 05/06/2014] [Indexed: 11/25/2022]
Abstract
Chronoamperometric assays based on tyrosinase and glucose oxidase (GOx) inactivation have been developed for the monitoring of Cr(III) and Cr(VI). Tyrosinase was immobilized by crosslinking on screen-printed carbon electrodes (SPCEs) containing tetrathiafulvalene (TTF) as electron transfer mediator. The tyrosinase/SPC(TTF)E response to pyrocatechol is inhibited by Cr(III). This process, that is not affected by Cr(VI), allows the determination of Cr(III) with a capability of detection of 2.0±0.2 μM and a reproducibility of 5.5%. GOx modified screen-printed carbon platinised electrodes (SPCPtEs) were developed for the selective determination of Cr(VI) using ferricyanide as redox mediator. The biosensor was able to discriminate two different oxidation states of chromium being able to reject Cr(III) and to detect the toxic species Cr(VI). Chronoamperometric response of the biosensor towards glucose decreases with the presence of Cr(VI), with a capability of detection of 90.5±7.6 nM and a reproducibility of 6.2%. A bipotentiostatic chronoamperometric biosensor was finally developed using a tyrosinase/SPC(TTF)E and a GOx/SPC(Pt)E connected in array mode for the simultaneous determination of Cr(III) and Cr(VI) in spiked tap water and in waste water from a tannery factory samples.
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Affiliation(s)
- Ana Calvo-Pérez
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
| | - Olga Domínguez-Renedo
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
| | - M Asunción Alonso-Lomillo
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
| | - M Julia Arcos-Martínez
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
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170
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Gong Z, Guo Y, Sun X, Cao Y, Wang X. Acetylcholinesterase biosensor for carbaryl detection based on interdigitated array microelectrodes. Bioprocess Biosyst Eng 2014; 37:1929-34. [PMID: 24770986 DOI: 10.1007/s00449-014-1195-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 02/28/2014] [Indexed: 10/25/2022]
Abstract
In this study, an acetylcholinesterase (AChE) biosensor with superior accuracy and sensitivity was successfully developed based on interdigitated array microelectrodes (IAMs). IAMs have a series of parallel microband electrodes with alternating microbands connected together. Chitosan was used as the enzyme immobilization material, and AChE was used as the model enzyme for carbaryl detection to fabricate AChE biosensor. Electrochemical impedance spectroscopy was used in conjunction with the fabricated biosensor to detect pesticide residues. Based on the inhibition of pesticides on the AChE activity, using carbaryl as model compounds, the biosensor exhibited a wide range, low detection limit, and high stability. Moreover, the biosensor can also be used as a new promising tool for pesticide residue analysis.
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Affiliation(s)
- Zhili Gong
- School of Agricultural and Food Engineering, Shandong University of Technology, No.12, Zhangzhou Road, Zibo, 255049, Shandong, People's Republic of China
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171
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Ivanov Y, Marinov I, Portaccio M, Lepore M, Mita DG, Godjevargova T. Flow-Injection System with Site-Specific Immobilization of Acetylcholinesterase Biosensor for Amperometric Detection of Organophosphate Pesticides. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2012.0033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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172
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An amperometric biosensor based on horseradish peroxidase immobilized onto maize tassel-multi-walled carbon nanotubes modified glassy carbon electrode for determination of heavy metal ions in aqueous solution. Enzyme Microb Technol 2014; 56:28-34. [DOI: 10.1016/j.enzmictec.2013.12.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 12/16/2013] [Accepted: 12/17/2013] [Indexed: 11/22/2022]
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173
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Alvarado-Gámez AL, Alonso-Lomillo MA, Domínguez-Renedo O, Arcos-Martínez MJ. A disposable alkaline phosphatase-based biosensor for vanadium chronoamperometric determination. SENSORS (BASEL, SWITZERLAND) 2014; 14:3756-67. [PMID: 24569772 PMCID: PMC3958235 DOI: 10.3390/s140203756] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/24/2014] [Accepted: 02/08/2014] [Indexed: 11/17/2022]
Abstract
A chronoamperometric method for vanadium ion determination, based on the inhibition of the enzyme alkaline phosphatase, is reported. Screen-printed carbon electrodes modified with gold nanoparticles were used as transducers for the immobilization of the enzyme. The enzymatic activity over 4-nitrophenyl phosphate sodium salt is affected by vanadium ions, which results in a decrease in the chronoamperometric current registered. The developed method has a detection limit of 0.39 ± 0.06 µM, a repeatability of 7.7% (n = 4) and a reproducibility of 8% (n = 3). A study of the possible interferences shows that the presence of Mo(VI), Cr(III), Ca(II) and W(VI), may affect vanadium determination at concentration higher than 1.0 mM. The method was successfully applied to the determination of vanadium in spiked tap water.
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Affiliation(s)
- Ana Lorena Alvarado-Gámez
- CELEQ and School of Chemistry, University of Costa Rica, San Pedro de Montes de Oca, San José P.O. Box 11500-2060, Costa Rica.
| | | | - Olga Domínguez-Renedo
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
| | - María Julia Arcos-Martínez
- Department of Chemistry, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos s/n, Burgos 09001, Spain.
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174
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Khaled E, Kamel MS, Hassan H, Abdel-Gawad H, Aboul-Enein HY. Performance of a portable biosensor for the analysis of ethion residues. Talanta 2014; 119:467-72. [DOI: 10.1016/j.talanta.2013.11.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 11/30/2022]
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175
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Dutta RR, Puzari P. Amperometric biosensing of organophosphate and organocarbamate pesticides utilizing polypyrrole entrapped acetylcholinesterase electrode. Biosens Bioelectron 2014; 52:166-72. [DOI: 10.1016/j.bios.2013.08.050] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 08/22/2013] [Accepted: 08/23/2013] [Indexed: 10/26/2022]
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176
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Govindhan M, Adhikari BR, Chen A. Nanomaterials-based electrochemical detection of chemical contaminants. RSC Adv 2014. [DOI: 10.1039/c4ra10399h] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Recent advances in the development of nanomaterials-based electrochemical sensors for environmental monitoring and food safety applications are assessed.
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Affiliation(s)
| | | | - Aicheng Chen
- Department of Chemistry
- Lakehead University
- Thunder Bay, Canada
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177
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Analytical aspects of enzyme reversible inhibition. Talanta 2014; 118:368-74. [DOI: 10.1016/j.talanta.2013.10.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 10/11/2013] [Accepted: 10/16/2013] [Indexed: 01/01/2023]
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178
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179
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Stoikova EE, Dolgova NN, Savel’ev AA, Galukhin AV, Stoikov II, Antipin IS, Evtyugin GA. Beer classification based on the array of solid-contact potentiometric sensors with thiacalixarene receptors. Russ Chem Bull 2014. [DOI: 10.1007/s11172-014-0417-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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180
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Moyo M. Horseradish Peroxidase Biosensor to Detect Zinc Ions in Aqueous Solutions. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ojab.2014.31001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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181
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Performance Evaluation of Monolith Based Immobilized Acetylcholinesterase Flow-Through Reactor for Copper(II) Determination with Spectrophotometric Detection. J CHEM-NY 2014. [DOI: 10.1155/2014/757069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A monolith based immobilized acetylcholinesterase (AChE) flow-through reactor has been developed for the determination of copper(II) using flow injection spectrophotometric system. The bioreactor was prepared inside a microcapillary column byin situpolymerization of butyl methacrylate, ethylene dimethacrylate, and 2,2-dimethoxy-1,2-diphynyletane-1-one in the presence of 1-decanol, followed by vinyl azlactone functionalization and AChE immobilization. The behavior of AChE before and after being immobilized on the monolith was evaluated by kinetic parameters from Lineweaver and Burk equation. The detection was based on measuring inhibition effect on the enzymatic activity of AChE by copper(II) using Ellman’s reaction with spectrophotometric detection at 410 nm. The linear range of the calibration graph was obtained over the range of 0.02–3.00 mg L−1. The detection limit, defined as 10% inhibition (I10), was found to be 0.04 mg L−1. The repeatability was 3.35 % (n=5) for 1.00 mg L−1of copper(II). The proposed method was applied to the determination of copper(II) in natural water samples with sampling rate of 4 h−1.
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182
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Reconstitution of supramolecular organization involved in energy metabolism at electrochemical interfaces for biosensing and bioenergy production. Anal Bioanal Chem 2013; 406:1011-27. [DOI: 10.1007/s00216-013-7465-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 10/01/2013] [Accepted: 10/25/2013] [Indexed: 12/26/2022]
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183
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Duford DA, Xi Y, Salin ED. Enzyme inhibition-based determination of pesticide residues in vegetable and soil in centrifugal microfluidic devices. Anal Chem 2013; 85:7834-41. [PMID: 23865536 DOI: 10.1021/ac401416w] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pesticide residue is of concern as an environmental pollutant when present at medium to high concentrations. Such residue was quantified in both vegetable and soil samples by an enzyme inhibition technique. The multistep reactions were integrated into centrifugal microfluidic devices allowing automated simultaneous analysis of several samples or of replicates. The small sample size inherent to microfluidic devices allowed for less reagent to be used including less of the expensive enzyme which is key to this method. Liquid-solid magnetically actuated extraction, filtration, sedimentation, and detection were all integrated on the same device. Several parameters were optimized including the concentration of enzyme, substrate, chromatic agent, and reaction time. In this environmental application of centrifugal microfluidics, the percent inhibition of enzyme activity is logarithmically proportional to the demonstration pesticide concentration (in this case carbofuran). This meant that as the pesticide concentration increased in the samples, the reaction was more inhibited and the final product absorbed less light at 525 nm. Two versions of the centrifugal microfluidic devices were made. One version was designed for the analysis of vegetable samples (cabbage) and the other for the analysis of soil samples. Each version provided results that were statistically similar to the conventional benchtop method with a carbofuran limit of detection of 0.1 ppm or 0.1 μg g(-1) (5 ng absolute limit of detection).
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Affiliation(s)
- David A Duford
- Department of Chemistry, McGill University, Montreal, Quebec, Canada
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184
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Alonso GA, Muñoz R, Marty JL. Automatic Electronic Tongue for On-Line Detection and Quantification of Organophosphorus and Carbamate Pesticides Using Enzymatic Screen Printed Biosensors. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.745087] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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185
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Kesik M, Kocer O, Kanik FE, Unlu NA, Rende E, Aslan-Gurel E, Rossi RM, Udum YA, Toppare L. Effective and Functional Surface Design for Biosensing Applications Based on a Novel Conducting Polymer and PMMA/Clay Nanocomposite. ELECTROANAL 2013. [DOI: 10.1002/elan.201300193] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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186
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Cascadic multienzyme reaction-based electrochemical biosensors. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013. [PMID: 23828506 DOI: 10.1007/10_2013_228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
: Since the first glucose biosensor was developed by Clark and Lyons, there have been great efforts to develop effective enzyme biosensors for wide applications. Those efforts are closely related to the enhancement of biosensor performance, including sensitivity improvement, elevation of selectivity, and extension of the range of analytes that may be determined. Introduction of a cascadic multienzyme reaction to the electrochemical biosensor is one of those efforts. By employing more than two enzymes to the biosensor, its sensitivity and accuracy can be enhanced. Also, the narrow application range that is a typical limitation of single enzyme-based biosensor can be overcome. This chapter will discuss the fundamental principles for the development of cascadic multienzyme reaction-based electrochemical biosensors and their applications in clinical and environmental fields.
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187
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First extraction of polyphenol oxidase from edible desert truffle (Terfezia leonis Tul.) and its thermal behavior. Eur Food Res Technol 2013. [DOI: 10.1007/s00217-013-2040-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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188
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Amraoui NB, Amine A, Rejeb IB, Gargouri M. Determination of Pesticides Based on Their Inhibitory Action on Acetylcholinesterase Using a 2-Phase System. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.762581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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189
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Ratel M, Provencher-Girard A, Zhao SS, Breault-Turcot J, Labrecque-Carbonneau J, Branca M, Pelletier JN, Schmitzer AR, Masson JF. Imidazolium-based ionic liquid surfaces for biosensing. Anal Chem 2013; 85:5770-7. [PMID: 23706008 DOI: 10.1021/ac400386z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ionic liquid self-assembled monolayers (SAM) were designed and applied for binding streptavidin, promoting affinity biosensing and enzyme activity on gold surfaces of sensors. The synthesis of 1-((+)-biotin)pentanamido)propyl)-3-(12-mercaptododecyl)-imidazolium bromide, a biotinylated ionic liquid (IL-biotin), which self-assembles on gold film, afforded streptavidin sensing with surface plasmon resonance (SPR). The IL-biotin-SAM efficiently formed a full streptavidin monolayer. The synthesis of 1-(carboxymethyl)-3-(mercaptododecyl)-imidazoliumbromide, a carboxylated IL (IL-COOH), was used to immobilize anti-IgG to create an affinity biosensor. The IL-COOH demonstrated efficient detection of IgG in the nanomolar concentration range, similar to the alkylthiols SAM and PEG. In addition, the IL-COOH demonstrated low fouling in crude serum, to a level equivalent to PEG. The IL-COOH was further modified with N,N'-bis (carboxymethyl)-l-lysine hydrate to bind copper ions and then, chelate histidine-tagged biomolecules. Human dihydrofolate reductase (hDHFR) was chelated to the modified IL-COOH. By monitoring enzyme activity in situ on the SPR sensor, it was revealed that the IL-COOH SAM improved the activity of hDHFR by 24% in comparison to classical SAM. Thereby, IL-SAM has been synthesized and successfully applied to three important biosensing schemes, demonstrating the advantages of this new class of monolayers.
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Affiliation(s)
- Mathieu Ratel
- Département de Chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montreal, Quebec, Canada H3C 3J7
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190
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Development of an acetylcholinesterase immobilized flow through amperometric detector based on thiocholine detection at a silver electrode. Talanta 2013; 109:116-20. [DOI: 10.1016/j.talanta.2013.01.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 01/25/2013] [Accepted: 01/30/2013] [Indexed: 11/21/2022]
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191
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Du L, Pang H, Wang Z, Lu J, Wei Y, Huang R. Characterization of an invertase with pH tolerance and truncation of its N-terminal to shift optimum activity toward neutral pH. PLoS One 2013; 8:e62306. [PMID: 23638032 PMCID: PMC3631178 DOI: 10.1371/journal.pone.0062306] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 03/19/2013] [Indexed: 11/19/2022] Open
Abstract
Most invertases identified to date have optimal activity at acidic pH, and are intolerant to neutral or alkaline environments. Here, an acid invertase named uninv2 is described. Uninv2 contained 586 amino acids, with a 100 amino acids N-terminal domain, a catalytic domain and a C-terminal domain. With sucrose as the substrate, uninv2 activity was optimal at pH 4.5 and at 45°C. Removal of N-terminal domain of uninv2 has shifted the optimum pH to 6.0 while retaining its optimum temperaure at 45°C. Both uninv2 and the truncated enzyme retained highly stable at neutral pH at 37°C, and they were stable at their optimum pH at 4°C for as long as 30 days. These characteristics make them far superior to invertase from Saccharomyces cerevisiae, which is mostly used as industrial enzyme.
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Affiliation(s)
- Liqin Du
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Hao Pang
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Zilong Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Jian Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Yutuo Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
| | - Ribo Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, China
- * E-mail:
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192
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Csiffáry G, Nagy P, Kiss A, Adányi N. New type biosensor for the detection of pesticides, based on the inhibition of acetylcholinesterase. ACTA ALIMENTARIA 2013. [DOI: 10.1556/aalim.42.2013.1.8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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193
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Zamfir LG, Rotariu L, Bala C. Acetylcholinesterase biosensor for carbamate drugs based on tetrathiafulvalene-tetracyanoquinodimethane/ionic liquid conductive gels. Biosens Bioelectron 2013; 46:61-7. [PMID: 23500478 DOI: 10.1016/j.bios.2013.02.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Revised: 02/08/2013] [Accepted: 02/11/2013] [Indexed: 01/17/2023]
Abstract
A highly sensitive acetylcholinesterase biosensor was developed for detection of carbamate drugs based on TTF-TCNQ-ionic liquid gel thiocholine sensor. The TTF-TCNQ-ionic/ionic liquid gel was characterized by FT-IR and scanning electron microscopy. The electrocatalytic behavior of TTF-TCNQ-ionic liquid gels toward oxidation of thiocholine was thoroughly investigated. 1-Ethyl-3-methylimidazolium tetracyanoborate gel based sensor allowed amperometric detection of thiocholine at +400 mV vs. Ag/AgCl with a high sensitivity of 55.9±1.2 μA mM(-1)cm(-2) and a low detection limit equal to 7.6 μM. The catalytic rate constant and diffusion constant of thiocholine were estimated from chronoamperometric data. The proposed biosensor based on AChE immobilized in sol-gel matrix was used for the detection of two carbamate therapeutic drugs. Very low detection limits of 26 pM eserine and 0.3 nM neostigmine were achieved. The analysis of spiked tap water proved the biosensor capability to be used as a screening method for detection of carbamate drugs in wastewaters.
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Affiliation(s)
- Lucian-Gabriel Zamfir
- Department of Analytical Chemistry, University of Bucharest, 4-12 Regina Elisabeta Blvd., 030018 Bucharest, Romania
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194
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Cavalieri F, Micheli L, Kaliappan S, Teo BM, Zhou M, Palleschi G, Ashokkumar M. Antimicrobial and biosensing ultrasound-responsive lysozyme-shelled microbubbles. ACS APPLIED MATERIALS & INTERFACES 2013; 5:464-471. [PMID: 23265433 DOI: 10.1021/am302660j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Air-filled lysozyme microbubbles (LSMBs) were engineered as a support for the immobilization of gold nanoparticles and an enzyme, alkaline phosphatase, in order to develop micro-antimicrobial and biosensing devices. Gold nanoparticles immobilized on LSMBs significantly improved the antimicrobial efficacy of the microbubbles against M. lysodeikticus. The surface functionalization of the microbubbles with gold nanoparticles did not affect their echogenicity when exposed to an ultrasound imaging probe. Alkaline phosphatase was conjugated on the surface of microbubbles without compromising its enzymatic activity. The functionalized microbubbles were used for the detection of paraoxon in aqueous solutions.
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Affiliation(s)
- Francesca Cavalieri
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00173 Roma, Italy.
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195
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Orozco J, García-Gradilla V, D'Agostino M, Gao W, Cortés A, Wang J. Artificial enzyme-powered microfish for water-quality testing. ACS NANO 2013; 7:818-24. [PMID: 23234238 DOI: 10.1021/nn305372n] [Citation(s) in RCA: 167] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We present a novel micromotor-based strategy for water-quality testing based on changes in the propulsion behavior of artificial biocatalytic microswimmers in the presence of aquatic pollutants. The new micromotor toxicity testing concept mimics live-fish water testing and relies on the toxin-induced inhibition of the enzyme catalase, responsible for the biocatalytic bubble propulsion of tubular microengines. The locomotion and survival of the artificial microfish are thus impaired by exposure to a broad range of contaminants, that lead to distinct time-dependent irreversible losses in the catalase activity, and hence of the propulsion behavior. Such use of enzyme-powered biocompatible polymeric (PEDOT)/Au-catalase tubular microengine offers highly sensitive direct optical visualization of changes in the swimming behavior in the presence of common contaminants and hence to a direct real-time assessment of the water quality. Quantitative data on the adverse effects of the various toxins upon the swimming behavior of the enzyme-powered artificial swimmer are obtained by estimating common ecotoxicological parameters, including the EC(50) (exposure concentration causing 50% attenuation of the microfish locomotion) and the swimmer survival time (lifetime expectancy). Such novel use of artificial microfish addresses major standardization and reproducibility problems as well as ethical concerns associated with live-fish toxicity assays and hence offers an attractive alternative to the common use of aquatic organisms for water-quality testing.
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Affiliation(s)
- Jahir Orozco
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
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196
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197
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Görgülü M, Çete S, Arslan H, Yaşar A. Preparing a new biosensor for hypoxanthine determination by immobilization of xanthine oxidase and uricase in polypyrrole-polyvinyl sulphonate film. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2013; 41:327-31. [PMID: 23305069 DOI: 10.3109/21691401.2012.744993] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this study, a new amperometric biosensor for the determination of hypoxanthine was developed. To this aim, polypyrrole-polyvinyl sulphonate films were prepared on the platinum electrode by the electropolymerization of pyrrole in the presence of polyvinyl sulphonate. Xanthine oxidase and uricase enzymes were immobilized in polypyrrole-polyvinyl sulphonate via the entrapment method. Optimum conditions of enzyme electrode were determined. Hypoxanthine detection is based on the oxidation of hydrogen peroxide at +400 mV produced by the enzymatic reaction on the enzyme electrode surface. The linear working range of biosensor for hypoxanthine was determined. The effects of pH and temperature on the response of the hypoxanthine biosensor were investigated. Optimum pH and temperature were measured as 8 and 30°C, respectively. Operational and storage stability of the biosensor were determined. After 20 assays, the biosensor sustained 74.5% of its initial performance. After 33 days, the biosensor lost 36% of its initial performance. The performance of the biosensor was tested in real samples.
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Affiliation(s)
- Mustafa Görgülü
- Department of Chemistry, Institute of Sciences, Gazi University , Ankara , Turkey
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198
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Chen C, Xie Q, Yang D, Xiao H, Fu Y, Tan Y, Yao S. Recent advances in electrochemical glucose biosensors: a review. RSC Adv 2013. [DOI: 10.1039/c2ra22351a] [Citation(s) in RCA: 578] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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199
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Arduini F, Amine A. Biosensors based on enzyme inhibition. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013; 140:299-326. [PMID: 23934362 DOI: 10.1007/10_2013_224] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The present chapter describes the use of biosensors based on enzyme inhibition as analytical tools. The parameters that affect biosensor sensitivity, such as the amount of immobilized enzyme, incubation time, and immobilization type, were critically evaluated, highlighting how the knowledge of enzymatic kinetics can help researchers optimize the biosensor in an easy and fast manner. The applications of these biosensors demonstrating their wide application have been reported. The objective of this survey is to give a critical description of biosensors based on enzyme inhibition, of their assembly, and their application in the environmental, food, and pharmaceutical fields.
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Affiliation(s)
- Fabiana Arduini
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy,
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200
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Dong J, Fan X, Qiao F, Ai S, Xin H. A novel protocol for ultra-trace detection of pesticides: Combined electrochemical reduction of Ellman's reagent with acetylcholinesterase inhibition. Anal Chim Acta 2013; 761:78-83. [DOI: 10.1016/j.aca.2012.11.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Revised: 11/16/2012] [Accepted: 11/19/2012] [Indexed: 10/27/2022]
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