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A screen-printed, amperometric, biosensor array for the detection of organophosphate pesticides based on inhibition of wild type, and mutant acetylcholinesterases, from Drosophila melanogaster

Identifieur interne : 000097 ( PascalFrancis/Curation ); précédent : 000096; suivant : 000098

A screen-printed, amperometric, biosensor array for the detection of organophosphate pesticides based on inhibition of wild type, and mutant acetylcholinesterases, from Drosophila melanogaster

Auteurs : A. Crew [Royaume-Uni] ; J. P. Hart [Royaume-Uni] ; R. Wedge [Royaume-Uni] ; J. L. Marty [France] ; D. Fournier [France]

Source :

RBID : Pascal:05-0048689

Descripteurs français

English descriptors

Abstract

Screen-printed carbon electrodes (SPCEs) modified with cobalt phthalocyanine (CoPC) have been used as base transducers in the construction of amperometric pesticide biosensors. Six individual biosensors were fabricated by depositing wildtype (WT) acetylcholinesterase (AChE) from Drosophila melanogaster or one of five mutant forms (B02, B03, B04, B421, and B65) of this enzyme, onto the surfaces of CoPC-SPCEs; these constituted the amperometric biosensor array. The enzyme converts acetylthiocholine into its electroactive product thiocholine. which is detected at only 0V vs. Ag/AgCl at the CoPC-SPCEs. The measurement step is performed using chronoamperometry. In the presence of an organophosphate (OP) pesticide, the enzyme is inhibited, which leads to a decrease in thiocholine production and a corresponding decrease in anodic current. This decrease is proportional to the logarithm of the pesticide concentration. Calibration studies were performed with the biosensor array using five OPs of interest to the food industry, namely omethoate, malaoxon, dichlorvos, chlorpyrifos-methyl-oxon, and pirimiphosmethyl-oxon. It was found that different inhibition patterns occurred for the five OPs indicating the possibility of identifying and quantifying these compounds in food samples. It should be added that there was no detrimental affect on the biosensor response from wheat or apple extracts.
pA  
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A08 01  1  ENG  @1 A screen-printed, amperometric, biosensor array for the detection of organophosphate pesticides based on inhibition of wild type, and mutant acetylcholinesterases, from Drosophila melanogaster
A09 01  1  ENG  @1 Selected papers from the international meeting on biosensors for food safety and environmental monitoring
A11 01  1    @1 CREW (A.)
A11 02  1    @1 HART (J. P.)
A11 03  1    @1 WEDGE (R.)
A11 04  1    @1 MARTY (J. L.)
A11 05  1    @1 FOURNIER (D.)
A12 01  1    @1 AMINE (Aziz) @9 ed.
A12 02  1    @1 BRETT (Christopher) @9 ed.
A12 03  1    @1 PALLESCHI (Giuseppe) @9 ed.
A14 01      @1 CRAMSS, Faculty of Applied Sciences, University of the West of England, Coldharbour Lane @2 Frenchay, Bristol @3 GBR @Z 1 aut. @Z 2 aut. @Z 3 aut.
A14 02      @1 Centre de Phytopharmacie, Université de Perpignan @2 Perpignan @3 FRA @Z 4 aut.
A14 03      @1 Laboratoire de Synthèse et Phytochimie des Molécules d'Intérêt Biologique, Université Paul Sabatier @2 Toulouse @3 FRA @Z 5 aut.
A15 01      @1 University of Hassan II-Mohammedia @2 Mohammedia @3 MAR @Z 1 aut.
A15 02      @1 University of Coimbra @2 Coimbra @3 PRT @Z 2 aut.
A15 03      @1 University of Rome Tor Vergata @2 Rome @3 ITA @Z 3 aut.
A20       @1 1601-1610
A21       @1 2004
A23 01      @0 ENG
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C01 01    ENG  @0 Screen-printed carbon electrodes (SPCEs) modified with cobalt phthalocyanine (CoPC) have been used as base transducers in the construction of amperometric pesticide biosensors. Six individual biosensors were fabricated by depositing wildtype (WT) acetylcholinesterase (AChE) from Drosophila melanogaster or one of five mutant forms (B02, B03, B04, B421, and B65) of this enzyme, onto the surfaces of CoPC-SPCEs; these constituted the amperometric biosensor array. The enzyme converts acetylthiocholine into its electroactive product thiocholine. which is detected at only 0V vs. Ag/AgCl at the CoPC-SPCEs. The measurement step is performed using chronoamperometry. In the presence of an organophosphate (OP) pesticide, the enzyme is inhibited, which leads to a decrease in thiocholine production and a corresponding decrease in anodic current. This decrease is proportional to the logarithm of the pesticide concentration. Calibration studies were performed with the biosensor array using five OPs of interest to the food industry, namely omethoate, malaoxon, dichlorvos, chlorpyrifos-methyl-oxon, and pirimiphosmethyl-oxon. It was found that different inhibition patterns occurred for the five OPs indicating the possibility of identifying and quantifying these compounds in food samples. It should be added that there was no detrimental affect on the biosensor response from wheat or apple extracts.
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C03 01  X  SPA  @0 Amperometría @5 01
C03 02  X  FRE  @0 Biodétecteur @5 02
C03 02  X  ENG  @0 Biosensor @5 02
C03 02  X  SPA  @0 Biodetector @5 02
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C03 07  X  FRE  @0 Chronoampérométrie @5 07
C03 07  X  ENG  @0 Chronoamperometry @5 07
C03 07  X  SPA  @0 Cronoamperimetría @5 07
C03 08  X  FRE  @0 Etalonnage @5 08
C03 08  X  ENG  @0 Calibration @5 08
C03 08  X  SPA  @0 Contraste @5 08
C03 09  X  FRE  @0 Industrie alimentaire @5 09
C03 09  X  ENG  @0 Food industry @5 09
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C03 10  X  FRE  @0 Produit alimentaire @5 10
C03 10  X  ENG  @0 Foodstuff @5 10
C03 10  X  SPA  @0 Producto alimenticio @5 10
C03 11  X  FRE  @0 Blé @5 11
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C03 12  X  SPA  @0 Manzana @5 12
C03 13  X  FRE  @0 Préparation échantillon @5 13
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C03 14  X  SPA  @0 Captador químico @5 14
C03 15  X  FRE  @0 Pesticide @5 15
C03 15  X  ENG  @0 Pesticides @5 15
C03 15  X  SPA  @0 Plaguicida @5 15
C03 16  X  FRE  @0 Acetylcholinesterase @2 FE @5 16
C03 16  X  ENG  @0 Acetylcholinesterase @2 FE @5 16
C03 16  X  SPA  @0 Acetylcholinesterase @2 FE @5 16
C03 17  X  FRE  @0 Cobalt @2 NC @5 17
C03 17  X  ENG  @0 Cobalt @2 NC @5 17
C03 17  X  SPA  @0 Cobalto @2 NC @5 17
C03 18  X  FRE  @0 Phtalocyanine @2 NK @5 18
C03 18  X  ENG  @0 Phthalocyanine @2 NK @5 18
C03 18  X  SPA  @0 Ftalocianina @2 NK @5 18
C03 19  X  FRE  @0 Plomb @2 NC @2 FX @5 19
C03 19  X  ENG  @0 Lead @2 NC @2 FX @5 19
C03 19  X  SPA  @0 Plomo @2 NC @2 FX @5 19
C03 20  X  FRE  @0 Dibenzo-p-dioxine(polychloro) @2 NK @2 FX @5 20 @6 Dibenzo-«p»-dioxine(polychloro)
C03 21  X  FRE  @0 Chlorpyriphos @2 NK @2 FF @5 21
C03 21  X  ENG  @0 Chlorpyrifos @2 NK @2 FF @5 21
C03 21  X  SPA  @0 Clorpirifos @2 NK @2 FF @5 21
C03 22  X  FRE  @0 Malaoxon @4 INC @5 32
C07 01  X  FRE  @0 Carboxylic ester hydrolases @2 FE
C07 01  X  ENG  @0 Carboxylic ester hydrolases @2 FE
C07 01  X  SPA  @0 Carboxylic ester hydrolases @2 FE
C07 02  X  FRE  @0 Esterases @2 FE
C07 02  X  ENG  @0 Esterases @2 FE
C07 02  X  SPA  @0 Esterases @2 FE
C07 03  X  FRE  @0 Hydrolases @2 FE
C07 03  X  ENG  @0 Hydrolases @2 FE
C07 03  X  SPA  @0 Hydrolases @2 FE
N21       @1 024
N44 01      @1 OTO
N82       @1 OTO
pR  
A30 01  1  ENG  @1 Biosensors for Food Safety and Environmental Monitoring. International Meeting @3 Marrakech MAR @4 2003-10-09

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Pascal:05-0048689

Le document en format XML

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<term>Enzyme</term>
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<term>Industrie alimentaire</term>
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<div type="abstract" xml:lang="en">Screen-printed carbon electrodes (SPCEs) modified with cobalt phthalocyanine (CoPC) have been used as base transducers in the construction of amperometric pesticide biosensors. Six individual biosensors were fabricated by depositing wildtype (WT) acetylcholinesterase (AChE) from Drosophila melanogaster or one of five mutant forms (B02, B03, B04, B421, and B65) of this enzyme, onto the surfaces of CoPC-SPCEs; these constituted the amperometric biosensor array. The enzyme converts acetylthiocholine into its electroactive product thiocholine. which is detected at only 0V vs. Ag/AgCl at the CoPC-SPCEs. The measurement step is performed using chronoamperometry. In the presence of an organophosphate (OP) pesticide, the enzyme is inhibited, which leads to a decrease in thiocholine production and a corresponding decrease in anodic current. This decrease is proportional to the logarithm of the pesticide concentration. Calibration studies were performed with the biosensor array using five OPs of interest to the food industry, namely omethoate, malaoxon, dichlorvos, chlorpyrifos-methyl-oxon, and pirimiphosmethyl-oxon. It was found that different inhibition patterns occurred for the five OPs indicating the possibility of identifying and quantifying these compounds in food samples. It should be added that there was no detrimental affect on the biosensor response from wheat or apple extracts.</div>
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</fA15>
<fA20>
<s1>1601-1610</s1>
</fA20>
<fA21>
<s1>2004</s1>
</fA21>
<fA23 i1="01">
<s0>ENG</s0>
</fA23>
<fA43 i1="01">
<s1>INIST</s1>
<s2>13703</s2>
<s5>354000113734620090</s5>
</fA43>
<fA44>
<s0>0000</s0>
<s1>© 2005 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45>
<s0>12 ref.</s0>
</fA45>
<fA47 i1="01" i2="1">
<s0>05-0048689</s0>
</fA47>
<fA60>
<s1>P</s1>
<s2>C</s2>
</fA60>
<fA61>
<s0>A</s0>
</fA61>
<fA64 i1="01" i2="1">
<s0>Analytical letters</s0>
</fA64>
<fA66 i1="01">
<s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG">
<s0>Screen-printed carbon electrodes (SPCEs) modified with cobalt phthalocyanine (CoPC) have been used as base transducers in the construction of amperometric pesticide biosensors. Six individual biosensors were fabricated by depositing wildtype (WT) acetylcholinesterase (AChE) from Drosophila melanogaster or one of five mutant forms (B02, B03, B04, B421, and B65) of this enzyme, onto the surfaces of CoPC-SPCEs; these constituted the amperometric biosensor array. The enzyme converts acetylthiocholine into its electroactive product thiocholine. which is detected at only 0V vs. Ag/AgCl at the CoPC-SPCEs. The measurement step is performed using chronoamperometry. In the presence of an organophosphate (OP) pesticide, the enzyme is inhibited, which leads to a decrease in thiocholine production and a corresponding decrease in anodic current. This decrease is proportional to the logarithm of the pesticide concentration. Calibration studies were performed with the biosensor array using five OPs of interest to the food industry, namely omethoate, malaoxon, dichlorvos, chlorpyrifos-methyl-oxon, and pirimiphosmethyl-oxon. It was found that different inhibition patterns occurred for the five OPs indicating the possibility of identifying and quantifying these compounds in food samples. It should be added that there was no detrimental affect on the biosensor response from wheat or apple extracts.</s0>
</fC01>
<fC02 i1="01" i2="X">
<s0>001C04E</s0>
</fC02>
<fC02 i1="02" i2="X">
<s0>002A31C09B</s0>
</fC02>
<fC02 i1="03" i2="X">
<s0>001C04A</s0>
</fC02>
<fC02 i1="04" i2="X">
<s0>215</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE">
<s0>Ampérométrie</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG">
<s0>Amperometry</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA">
<s0>Amperometría</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE">
<s0>Biodétecteur</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG">
<s0>Biosensor</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA">
<s0>Biodetector</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE">
<s0>Inhibition</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG">
<s0>Inhibition</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA">
<s0>Inhibición</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE">
<s0>Electrode carbone</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG">
<s0>Carbon electrode</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA">
<s0>Electrodo carbono</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE">
<s0>Transducteur</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG">
<s0>Transducer</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA">
<s0>Transductor</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE">
<s0>Enzyme</s0>
<s2>FE</s2>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG">
<s0>Enzyme</s0>
<s2>FE</s2>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA">
<s0>Enzima</s0>
<s2>FE</s2>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE">
<s0>Chronoampérométrie</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG">
<s0>Chronoamperometry</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA">
<s0>Cronoamperimetría</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE">
<s0>Etalonnage</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG">
<s0>Calibration</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA">
<s0>Contraste</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE">
<s0>Industrie alimentaire</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG">
<s0>Food industry</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA">
<s0>Industria alimenticia</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE">
<s0>Produit alimentaire</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG">
<s0>Foodstuff</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA">
<s0>Producto alimenticio</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE">
<s0>Blé</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG">
<s0>Wheat</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA">
<s0>Trigo</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE">
<s0>Pomme</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG">
<s0>Apple</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA">
<s0>Manzana</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE">
<s0>Préparation échantillon</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG">
<s0>Sample preparation</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA">
<s0>Preparación muestreo</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE">
<s0>Capteur chimique</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG">
<s0>Chemical sensor</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA">
<s0>Captador químico</s0>
<s5>14</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE">
<s0>Pesticide</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG">
<s0>Pesticides</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA">
<s0>Plaguicida</s0>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE">
<s0>Acetylcholinesterase</s0>
<s2>FE</s2>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG">
<s0>Acetylcholinesterase</s0>
<s2>FE</s2>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA">
<s0>Acetylcholinesterase</s0>
<s2>FE</s2>
<s5>16</s5>
</fC03>
<fC03 i1="17" i2="X" l="FRE">
<s0>Cobalt</s0>
<s2>NC</s2>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="X" l="ENG">
<s0>Cobalt</s0>
<s2>NC</s2>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="X" l="SPA">
<s0>Cobalto</s0>
<s2>NC</s2>
<s5>17</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE">
<s0>Phtalocyanine</s0>
<s2>NK</s2>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG">
<s0>Phthalocyanine</s0>
<s2>NK</s2>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA">
<s0>Ftalocianina</s0>
<s2>NK</s2>
<s5>18</s5>
</fC03>
<fC03 i1="19" i2="X" l="FRE">
<s0>Plomb</s0>
<s2>NC</s2>
<s2>FX</s2>
<s5>19</s5>
</fC03>
<fC03 i1="19" i2="X" l="ENG">
<s0>Lead</s0>
<s2>NC</s2>
<s2>FX</s2>
<s5>19</s5>
</fC03>
<fC03 i1="19" i2="X" l="SPA">
<s0>Plomo</s0>
<s2>NC</s2>
<s2>FX</s2>
<s5>19</s5>
</fC03>
<fC03 i1="20" i2="X" l="FRE">
<s0>Dibenzo-p-dioxine(polychloro)</s0>
<s2>NK</s2>
<s2>FX</s2>
<s5>20</s5>
<s6>Dibenzo-«p»-dioxine(polychloro)</s6>
</fC03>
<fC03 i1="21" i2="X" l="FRE">
<s0>Chlorpyriphos</s0>
<s2>NK</s2>
<s2>FF</s2>
<s5>21</s5>
</fC03>
<fC03 i1="21" i2="X" l="ENG">
<s0>Chlorpyrifos</s0>
<s2>NK</s2>
<s2>FF</s2>
<s5>21</s5>
</fC03>
<fC03 i1="21" i2="X" l="SPA">
<s0>Clorpirifos</s0>
<s2>NK</s2>
<s2>FF</s2>
<s5>21</s5>
</fC03>
<fC03 i1="22" i2="X" l="FRE">
<s0>Malaoxon</s0>
<s4>INC</s4>
<s5>32</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE">
<s0>Carboxylic ester hydrolases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="01" i2="X" l="ENG">
<s0>Carboxylic ester hydrolases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="01" i2="X" l="SPA">
<s0>Carboxylic ester hydrolases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="02" i2="X" l="FRE">
<s0>Esterases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="02" i2="X" l="ENG">
<s0>Esterases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="02" i2="X" l="SPA">
<s0>Esterases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="03" i2="X" l="FRE">
<s0>Hydrolases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="03" i2="X" l="ENG">
<s0>Hydrolases</s0>
<s2>FE</s2>
</fC07>
<fC07 i1="03" i2="X" l="SPA">
<s0>Hydrolases</s0>
<s2>FE</s2>
</fC07>
<fN21>
<s1>024</s1>
</fN21>
<fN44 i1="01">
<s1>OTO</s1>
</fN44>
<fN82>
<s1>OTO</s1>
</fN82>
</pA>
<pR>
<fA30 i1="01" i2="1" l="ENG">
<s1>Biosensors for Food Safety and Environmental Monitoring. International Meeting</s1>
<s3>Marrakech MAR</s3>
<s4>2003-10-09</s4>
</fA30>
</pR>
</standard>
</inist>
</record>

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   |texte=   A screen-printed, amperometric, biosensor array for the detection of organophosphate pesticides based on inhibition of wild type, and mutant acetylcholinesterases, from Drosophila melanogaster
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