IndiumV3, Chine, Analysis, bibRecord, 000883

Electrochemistry and biosensing activity of cytochrome c immobilized in macroporous materials

Identifieur interne : 000883 ( Chine/Analysis ); précédent : 000882; suivant : 000884

Electrochemistry and biosensing activity of cytochrome c immobilized in macroporous materials

Auteurs : RBID : Pascal:11-0472673

Descripteurs français

Pascal (Inist)
- Biodétecteur, Cytochrome c, Immobilisation, Ampérométrie, Voltammétrie cyclique, Transfert électron, Constante vitesse, Electrocatalyse, Réduction, Concentration, Limite détection, pH, Constante Michaelis, Méthode, Peroxyde d'hydrogène, Oxyde d'indium, Oxyde d'étain, Détection, Capteur chimique.

English descriptors

KwdEn :
- Amperometry, Biosensor, Chemical sensor, Concentration, Cyclic voltammetry, Cytochrome c, Detection, Detection limit, Electrocatalysis, Electron transfer, Hydrogen peroxide, Immobilization, Indium oxide, Method, Michaelis constant, Rate constant, Reduction, Tin oxide, pH.

Abstract

An amperometric biosensor for hydrogen peroxide (H₂O₂) has been constructed by immobilizing cytochrome c on an indium/tin oxide (ITO) electrode modified with a macroporous material. Cyclic voltammetry showed that the direct and quasi-reversible electron transfer of cytochrome c proceeds without the need for an electron mediator. A surface-controlled electron transfer process can be observed with an apparent heterogeneous electron-transfer rate constant (k_s) of 29.2 s^-1. The biosensor displays excellent electrocatalytic responses to the reduction of H₂O₂ to give amperometric responses that increase steadily with the concentration of H₂O₂ in the range from 5 μM to 2 mM. The detection limit is 0.61 μM at pH 7.4. The apparent Michaelis-Menten constant (K_m) of the biosensor is 1.06 mM. This investigation not only provided a method for the direct electron transfer of cytochrome c on macroporous materials, but also established a feasible approach for durable and reliable detection of H₂O₂.

Links toward previous steps (curation, corpus...)

to stream Main, to step Corpus: 002660
to stream Main, to step Repository: 003022
to stream Chine, to step Extraction: 000883

Links to Exploration step

Pascal:11-0472673

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Electrochemistry and biosensing activity of cytochrome c immobilized in macroporous materials</title>
<author><name>YING WANG</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry and Key Lab of Molecular Engineering of Polymers of Chinese Ministry of Education, Fudan University</s1>
<s2>Shanghai 200433</s2>
<s3>CHN</s3>
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<country>République populaire de Chine</country>
<wicri:noRegion>Shanghai 200433</wicri:noRegion>
</affiliation>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>IMAGES EA 4218 Centre de Phytopharmacie, Université de Perpignan, 52 Avenue Paul Alduy</s1>
<s2>66860 Perpignan</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Languedoc-Roussillon</region>
<settlement type="city">Perpignan</settlement>
</placeName>
</affiliation>
</author>
<author><name>KUN QIAN</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry and Key Lab of Molecular Engineering of Polymers of Chinese Ministry of Education, Fudan University</s1>
<s2>Shanghai 200433</s2>
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<country>République populaire de Chine</country>
<wicri:noRegion>Shanghai 200433</wicri:noRegion>
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<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>ARC Centre of Excellence for Functional Nanomaterials and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland</s1>
<s2>Brisbane, QLD 4072</s2>
<s3>AUS</s3>
<sZ>2 aut.</sZ>
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<country>Australie</country>
<wicri:noRegion>Brisbane, QLD 4072</wicri:noRegion>
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<author><name>KAI GUO</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry and Key Lab of Molecular Engineering of Polymers of Chinese Ministry of Education, Fudan University</s1>
<s2>Shanghai 200433</s2>
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<country>République populaire de Chine</country>
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<author><name>JILIE KONG</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry and Key Lab of Molecular Engineering of Polymers of Chinese Ministry of Education, Fudan University</s1>
<s2>Shanghai 200433</s2>
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<country>République populaire de Chine</country>
<wicri:noRegion>Shanghai 200433</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Marty, Jean Louis" uniqKey="Marty J">Jean-Louis Marty</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>IMAGES EA 4218 Centre de Phytopharmacie, Université de Perpignan, 52 Avenue Paul Alduy</s1>
<s2>66860 Perpignan</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
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<country>France</country>
<placeName><region type="region" nuts="2">Languedoc-Roussillon</region>
<settlement type="city">Perpignan</settlement>
</placeName>
</affiliation>
</author>
<author><name>CHENGZHONG YU</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>ARC Centre of Excellence for Functional Nanomaterials and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland</s1>
<s2>Brisbane, QLD 4072</s2>
<s3>AUS</s3>
<sZ>2 aut.</sZ>
<sZ>6 aut.</sZ>
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<country>Australie</country>
<wicri:noRegion>Brisbane, QLD 4072</wicri:noRegion>
</affiliation>
</author>
<author><name>BAOHONG LIU</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry and Key Lab of Molecular Engineering of Polymers of Chinese Ministry of Education, Fudan University</s1>
<s2>Shanghai 200433</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
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<sZ>4 aut.</sZ>
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<country>République populaire de Chine</country>
<wicri:noRegion>Shanghai 200433</wicri:noRegion>
</affiliation>
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<publicationStmt><idno type="inist">11-0472673</idno>
<date when="2011">2011</date>
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</publicationStmt>
<seriesStmt><idno type="ISSN">0026-3672</idno>
<title level="j" type="abbreviated">Mikrochim. acta : (1966. Print)</title>
<title level="j" type="main">Mikrochimica acta : (1966. Print)</title>
</seriesStmt>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Amperometry</term>
<term>Biosensor</term>
<term>Chemical sensor</term>
<term>Concentration</term>
<term>Cyclic voltammetry</term>
<term>Cytochrome c</term>
<term>Detection</term>
<term>Detection limit</term>
<term>Electrocatalysis</term>
<term>Electron transfer</term>
<term>Hydrogen peroxide</term>
<term>Immobilization</term>
<term>Indium oxide</term>
<term>Method</term>
<term>Michaelis constant</term>
<term>Rate constant</term>
<term>Reduction</term>
<term>Tin oxide</term>
<term>pH</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Biodétecteur</term>
<term>Cytochrome c</term>
<term>Immobilisation</term>
<term>Ampérométrie</term>
<term>Voltammétrie cyclique</term>
<term>Transfert électron</term>
<term>Constante vitesse</term>
<term>Electrocatalyse</term>
<term>Réduction</term>
<term>Concentration</term>
<term>Limite détection</term>
<term>pH</term>
<term>Constante Michaelis</term>
<term>Méthode</term>
<term>Peroxyde d'hydrogène</term>
<term>Oxyde d'indium</term>
<term>Oxyde d'étain</term>
<term>Détection</term>
<term>Capteur chimique</term>
</keywords>
</textClass>
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<front><div type="abstract" xml:lang="en">An amperometric biosensor for hydrogen peroxide (H<sub>2</sub>
O<sub>2</sub>
) has been constructed by immobilizing cytochrome c on an indium/tin oxide (ITO) electrode modified with a macroporous material. Cyclic voltammetry showed that the direct and quasi-reversible electron transfer of cytochrome c proceeds without the need for an electron mediator. A surface-controlled electron transfer process can be observed with an apparent heterogeneous electron-transfer rate constant (k<sub>s</sub>
) of 29.2 s<sup>-1</sup>
. The biosensor displays excellent electrocatalytic responses to the reduction of H<sub>2</sub>
O<sub>2</sub>
 to give amperometric responses that increase steadily with the concentration of H<sub>2</sub>
O<sub>2</sub>
 in the range from 5 μM to 2 mM. The detection limit is 0.61 μM at pH 7.4. The apparent Michaelis-Menten constant (K<sub>m</sub>
) of the biosensor is 1.06 mM. This investigation not only provided a method for the direct electron transfer of cytochrome c on macroporous materials, but also established a feasible approach for durable and reliable detection of H<sub>2</sub>
O<sub>2</sub>
.</div>
</front>
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<fA08 i1="01" i2="1" l="ENG"><s1>Electrochemistry and biosensing activity of cytochrome c immobilized in macroporous materials</s1>
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<fA11 i1="01" i2="1"><s1>YING WANG</s1>
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<fA11 i1="02" i2="1"><s1>KUN QIAN</s1>
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<fA11 i1="03" i2="1"><s1>KAI GUO</s1>
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<fA11 i1="04" i2="1"><s1>JILIE KONG</s1>
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<fA11 i1="05" i2="1"><s1>MARTY (Jean-Louis)</s1>
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<fA11 i1="06" i2="1"><s1>CHENGZHONG YU</s1>
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<fA11 i1="07" i2="1"><s1>BAOHONG LIU</s1>
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<fA14 i1="01"><s1>Department of Chemistry and Key Lab of Molecular Engineering of Polymers of Chinese Ministry of Education, Fudan University</s1>
<s2>Shanghai 200433</s2>
<s3>CHN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<fA14 i1="02"><s1>ARC Centre of Excellence for Functional Nanomaterials and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland</s1>
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<s3>AUS</s3>
<sZ>2 aut.</sZ>
<sZ>6 aut.</sZ>
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<fA14 i1="03"><s1>IMAGES EA 4218 Centre de Phytopharmacie, Université de Perpignan, 52 Avenue Paul Alduy</s1>
<s2>66860 Perpignan</s2>
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<fC01 i1="01" l="ENG"><s0>An amperometric biosensor for hydrogen peroxide (H<sub>2</sub>
O<sub>2</sub>
) has been constructed by immobilizing cytochrome c on an indium/tin oxide (ITO) electrode modified with a macroporous material. Cyclic voltammetry showed that the direct and quasi-reversible electron transfer of cytochrome c proceeds without the need for an electron mediator. A surface-controlled electron transfer process can be observed with an apparent heterogeneous electron-transfer rate constant (k<sub>s</sub>
) of 29.2 s<sup>-1</sup>
. The biosensor displays excellent electrocatalytic responses to the reduction of H<sub>2</sub>
O<sub>2</sub>
 to give amperometric responses that increase steadily with the concentration of H<sub>2</sub>
O<sub>2</sub>
 in the range from 5 μM to 2 mM. The detection limit is 0.61 μM at pH 7.4. The apparent Michaelis-Menten constant (K<sub>m</sub>
) of the biosensor is 1.06 mM. This investigation not only provided a method for the direct electron transfer of cytochrome c on macroporous materials, but also established a feasible approach for durable and reliable detection of H<sub>2</sub>
O<sub>2</sub>
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<fC02 i1="01" i2="X"><s0>001C04E</s0>
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<fC02 i1="02" i2="X"><s0>002A31C09B</s0>
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</fC02>
<fC02 i1="04" i2="X"><s0>215</s0>
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<fC03 i1="01" i2="X" l="FRE"><s0>Biodétecteur</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Biosensor</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Biodetector</s0>
<s5>01</s5>
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<fC03 i1="02" i2="X" l="FRE"><s0>Cytochrome c</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Cytochrome c</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Citocromo c</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Immobilisation</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Immobilization</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Inmovilización</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Ampérométrie</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Amperometry</s0>
<s5>04</s5>
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<fC03 i1="04" i2="X" l="SPA"><s0>Amperometría</s0>
<s5>04</s5>
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<s5>05</s5>
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<s5>05</s5>
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<s5>05</s5>
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<s5>06</s5>
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<s5>06</s5>
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<s5>06</s5>
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<s5>07</s5>
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<s5>07</s5>
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<s5>07</s5>
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<s5>08</s5>
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<fC03 i1="08" i2="X" l="ENG"><s0>Electrocatalysis</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Electrocatálisis</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Réduction</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Reduction</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Reducción</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Concentration</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Concentration</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Concentración</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Limite détection</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Detection limit</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Límite detección</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>pH</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>pH</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>pH</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Constante Michaelis</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Michaelis constant</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Constante Michaelis</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Méthode</s0>
<s5>14</s5>
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<fC03 i1="14" i2="X" l="ENG"><s0>Method</s0>
<s5>14</s5>
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<fC03 i1="14" i2="X" l="SPA"><s0>Método</s0>
<s5>14</s5>
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<fC03 i1="15" i2="X" l="FRE"><s0>Peroxyde d'hydrogène</s0>
<s2>NK</s2>
<s5>15</s5>
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<fC03 i1="15" i2="X" l="ENG"><s0>Hydrogen peroxide</s0>
<s2>NK</s2>
<s5>15</s5>
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<fC03 i1="15" i2="X" l="SPA"><s0>Peróxido de hydrogeno</s0>
<s2>NK</s2>
<s5>15</s5>
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<s5>16</s5>
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<fC03 i1="16" i2="X" l="ENG"><s0>Indium oxide</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Indio óxido</s0>
<s5>16</s5>
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<fC03 i1="17" i2="X" l="FRE"><s0>Oxyde d'étain</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="X" l="ENG"><s0>Tin oxide</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="X" l="SPA"><s0>Estaño óxido</s0>
<s5>17</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>Détection</s0>
<s5>22</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG"><s0>Detection</s0>
<s5>22</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA"><s0>Detección</s0>
<s5>22</s5>
</fC03>
<fC03 i1="19" i2="X" l="FRE"><s0>Capteur chimique</s0>
<s5>23</s5>
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<s5>23</s5>
</fC03>
<fC03 i1="19" i2="X" l="SPA"><s0>Captador químico</s0>
<s5>23</s5>
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   |texte=   Electrochemistry and biosensing activity of cytochrome c immobilized in macroporous materials
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Electrochemistry and biosensing activity of cytochrome c immobilized in macroporous materials

Electrochemistry and biosensing activity of cytochrome c immobilized in macroporous materials

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