Trends in Flow-based Biosensing Systems for Pesticide Assessment

This review gives a survey on the state of the art of pesticide detection usingflow-based biosensing systems for sample screening. Although immunosensor systems havebeen proposed as powerful pesticide monitoring tools, this review is mainly focused onenzyme-based biosensors, as they are the most com...

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Main Authors: Jean-Louis Marty, Silvana Andreescu, Mònica Campàs, Beatriz Prieto-Simón
Format: Article
Language:English
Published: MDPI AG 2006-10-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/6/10/1161/
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author Jean-Louis Marty
Silvana Andreescu
Mònica Campàs
Beatriz Prieto-Simón
author_facet Jean-Louis Marty
Silvana Andreescu
Mònica Campàs
Beatriz Prieto-Simón
author_sort Jean-Louis Marty
collection DOAJ
description This review gives a survey on the state of the art of pesticide detection usingflow-based biosensing systems for sample screening. Although immunosensor systems havebeen proposed as powerful pesticide monitoring tools, this review is mainly focused onenzyme-based biosensors, as they are the most commonly employed when using a flowsystem. Among the different detection methods able to be integrated into flow-injectionanalysis (FIA) systems, the electrochemical ones will be treated in more detail, due to theirhigh sensitivity, simple sample pretreatment, easy operational procedures and real-timedetection. During the last decade, new trends have been emerging in order to increase theenzyme stability, the sensitivity and selectivity of the measurements, and to lower thedetection limits. These approaches are based on (i) the design of novel matrices for enzymeimmobilisation, (ii) new manifold configurations of the FIA system, sometimes includingminiaturisation or lab-on-chip protocols thanks to micromachining technology, (iii) the useof cholinesterase enzymes either from various commercial sources or genetically modifiedwith the aim of being more sensitive, (iv) the incorporation of other highly specificenzymes, such as organophosphate hydrolase (OPH) or parathion hydrolase (PH) and (v) thecombination of different electrochemical methods of detection. This article discusses thesenovel strategies and their advantages and limitations.
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spelling doaj.art-0ff427b1d71f4c0b8b305a61d6023a482022-12-22T02:18:06ZengMDPI AGSensors1424-82202006-10-016101161118610.3390/s6101161Trends in Flow-based Biosensing Systems for Pesticide AssessmentJean-Louis MartySilvana AndreescuMònica CampàsBeatriz Prieto-SimónThis review gives a survey on the state of the art of pesticide detection usingflow-based biosensing systems for sample screening. Although immunosensor systems havebeen proposed as powerful pesticide monitoring tools, this review is mainly focused onenzyme-based biosensors, as they are the most commonly employed when using a flowsystem. Among the different detection methods able to be integrated into flow-injectionanalysis (FIA) systems, the electrochemical ones will be treated in more detail, due to theirhigh sensitivity, simple sample pretreatment, easy operational procedures and real-timedetection. During the last decade, new trends have been emerging in order to increase theenzyme stability, the sensitivity and selectivity of the measurements, and to lower thedetection limits. These approaches are based on (i) the design of novel matrices for enzymeimmobilisation, (ii) new manifold configurations of the FIA system, sometimes includingminiaturisation or lab-on-chip protocols thanks to micromachining technology, (iii) the useof cholinesterase enzymes either from various commercial sources or genetically modifiedwith the aim of being more sensitive, (iv) the incorporation of other highly specificenzymes, such as organophosphate hydrolase (OPH) or parathion hydrolase (PH) and (v) thecombination of different electrochemical methods of detection. This article discusses thesenovel strategies and their advantages and limitations.http://www.mdpi.com/1424-8220/6/10/1161/enzyme inhibitionacetylcholinesterase (AChE)pesticideflow-injection analysis (FIA) System
spellingShingle Jean-Louis Marty
Silvana Andreescu
Mònica Campàs
Beatriz Prieto-Simón
Trends in Flow-based Biosensing Systems for Pesticide Assessment
Sensors
enzyme inhibition
acetylcholinesterase (AChE)
pesticide
flow-injection analysis (FIA) System
title Trends in Flow-based Biosensing Systems for Pesticide Assessment
title_full Trends in Flow-based Biosensing Systems for Pesticide Assessment
title_fullStr Trends in Flow-based Biosensing Systems for Pesticide Assessment
title_full_unstemmed Trends in Flow-based Biosensing Systems for Pesticide Assessment
title_short Trends in Flow-based Biosensing Systems for Pesticide Assessment
title_sort trends in flow based biosensing systems for pesticide assessment
topic enzyme inhibition
acetylcholinesterase (AChE)
pesticide
flow-injection analysis (FIA) System
url http://www.mdpi.com/1424-8220/6/10/1161/
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