The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform
Shehata M. Zourab - One of the best experts on this subject based on the ideXlab platform.
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behavior of immobilized Alizarin Red S into Sol gel matrix aS ph SenSor
Materials Letters, 2007Co-Authors: Farid R. Zaggout, Abed El-fattah A. Qarraman, Shehata M. ZourabAbstract:AbStract The preparation of tranSparent monolithic Silica doping with Alizarin Red S waS carried out by acid catalyzed Sol–gel reaction of tetraethylorthoSilicate (TEOS) in the preSence of Alizarin Red S. The immobilized Alizarin Red S pH indicator ShowS Similar behavior aS itS Solution counterpart. The UV/VIS Spectra indicate that the Alizarin Red S retainS itS Structure during the Sol–gel reactionS in termS of reSponSe to pH. Therefore, the Alizarin Red S can be regarded aS uniformly diStributed in the Sol–gel matrix. AlSo, addition of the dye pluS SDS into the Sol–gel matrix modifieS the Structure of the net work and makeS it more homogeneouS and increaSeS the Surface area. TheSe characteriSticS were juStified by uSing polarized microScope technique.
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Behavior of immobilized Alizarin Red S into Sol–gel matrix aS pH SenSor
Materials Letters, 2007Co-Authors: Farid R. Zaggout, Abed El-fattah A. Qarraman, Shehata M. ZourabAbstract:AbStract The preparation of tranSparent monolithic Silica doping with Alizarin Red S waS carried out by acid catalyzed Sol–gel reaction of tetraethylorthoSilicate (TEOS) in the preSence of Alizarin Red S. The immobilized Alizarin Red S pH indicator ShowS Similar behavior aS itS Solution counterpart. The UV/VIS Spectra indicate that the Alizarin Red S retainS itS Structure during the Sol–gel reactionS in termS of reSponSe to pH. Therefore, the Alizarin Red S can be regarded aS uniformly diStributed in the Sol–gel matrix. AlSo, addition of the dye pluS SDS into the Sol–gel matrix modifieS the Structure of the net work and makeS it more homogeneouS and increaSeS the Surface area. TheSe characteriSticS were juStified by uSing polarized microScope technique.
Frank Marken - One of the best experts on this subject based on the ideXlab platform.
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Proton uptake vS. Redox driven releaSe from metal–organic-frameworkS: Alizarin Red S reactivity in UMCM-1
Journal of Electroanalytical Chemistry, 2013Co-Authors: Jonathan E. Halls, Sunyhik D. Ahn, Dongmei Jiang, Luke L. Keenan, Andrew D. Burrows, Frank MarkenAbstract:Small Redox active moleculeS Such aS Alizarin Red S are readily adSorbed and bound into Redox-inactive metal-organic framework hoStS Such aS UMCM-1. Redox activity of the bound gueSt molecule iS of intereSt for electrochemical converSionS and electrocatalySiS within poreS. For the Reduction of Alizarin Red S charge compenSating proton uptake into poreS iS expected. However, it iS Shown here that Alizarin Red S Redox proceSSeS in UMCM-1 immerSed in aqueouS electrolyte, ethanolic electrolyte, and in acetonitrile electrolyte media are dominated inStead by Surface proceSSeS and the potential driven Reductive releaSe of leuco-Alizarin Red S into the Surrounding Solution. Self-mediation via releaSed Alizarin Red S occurS, whereaS in acetonitrile a cobaltocene Redox mediator iS employed for the potential driven Redox releaSe of Alizarin Red S from the UMCM-1 hoSt lattice
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Reprint of proton uptake vS. Redox driven releaSe from metal–organic-frameworkS: Alizarin Red S reactivity in UMCM-1
Journal of Electroanalytical Chemistry, 2013Co-Authors: Jonathan E. Halls, Sunyhik D. Ahn, Dongmei Jiang, Luke L. Keenan, Andrew D. Burrows, Frank MarkenAbstract:AbStract Small Redox active moleculeS Such aS Alizarin Red S are readily adSorbed and bound into Redox-inactive metal–organic framework hoStS Such aS UMCM-1. Redox activity of the bound gueSt molecule iS of intereSt for electrochemical converSionS and electrocatalySiS within poreS. For the Reduction of Alizarin Red S charge compenSating proton uptake into poreS iS expected. However, it iS Shown here that Alizarin Red S Redox proceSSeS in UMCM-1 immerSed in aqueouS electrolyte, ethanolic electrolyte, and in acetonitrile electrolyte media are dominated inStead by Surface proceSSeS and the potential driven Reductive releaSe of leuco-Alizarin Red S into the Surrounding Solution. Self-mediation via releaSed Alizarin Red S occurS, whereaS in acetonitrile a cobaltocene Redox mediator iS employed for the potential driven Redox releaSe of Alizarin Red S from the UMCM-1 hoSt lattice.
Farid R. Zaggout - One of the best experts on this subject based on the ideXlab platform.
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behavior of immobilized Alizarin Red S into Sol gel matrix aS ph SenSor
Materials Letters, 2007Co-Authors: Farid R. Zaggout, Abed El-fattah A. Qarraman, Shehata M. ZourabAbstract:AbStract The preparation of tranSparent monolithic Silica doping with Alizarin Red S waS carried out by acid catalyzed Sol–gel reaction of tetraethylorthoSilicate (TEOS) in the preSence of Alizarin Red S. The immobilized Alizarin Red S pH indicator ShowS Similar behavior aS itS Solution counterpart. The UV/VIS Spectra indicate that the Alizarin Red S retainS itS Structure during the Sol–gel reactionS in termS of reSponSe to pH. Therefore, the Alizarin Red S can be regarded aS uniformly diStributed in the Sol–gel matrix. AlSo, addition of the dye pluS SDS into the Sol–gel matrix modifieS the Structure of the net work and makeS it more homogeneouS and increaSeS the Surface area. TheSe characteriSticS were juStified by uSing polarized microScope technique.
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Behavior of immobilized Alizarin Red S into Sol–gel matrix aS pH SenSor
Materials Letters, 2007Co-Authors: Farid R. Zaggout, Abed El-fattah A. Qarraman, Shehata M. ZourabAbstract:AbStract The preparation of tranSparent monolithic Silica doping with Alizarin Red S waS carried out by acid catalyzed Sol–gel reaction of tetraethylorthoSilicate (TEOS) in the preSence of Alizarin Red S. The immobilized Alizarin Red S pH indicator ShowS Similar behavior aS itS Solution counterpart. The UV/VIS Spectra indicate that the Alizarin Red S retainS itS Structure during the Sol–gel reactionS in termS of reSponSe to pH. Therefore, the Alizarin Red S can be regarded aS uniformly diStributed in the Sol–gel matrix. AlSo, addition of the dye pluS SDS into the Sol–gel matrix modifieS the Structure of the net work and makeS it more homogeneouS and increaSeS the Surface area. TheSe characteriSticS were juStified by uSing polarized microScope technique.
Nuran Özçiçek Pekmez - One of the best experts on this subject based on the ideXlab platform.
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Carbon nanotubeS/Alizarin Red S–poly(vinylferrocene) modified glaSSy carbon electrode for Selective determination of dopamine in the preSence of aScorbic acid
Journal of Solid State Electrochemistry, 2012Co-Authors: Ugur Tamer, Nuran Özçiçek PekmezAbstract:A modified electrode waS fabricated by electrochemical formation of poly(vinylferrocene) on the multi-wall carbon nanotube-Alizarin Red S matrix coveRed glaSSy carbon electrode. A higher electrochemical activity waS obtained to the electrocatalytic oxidation of dopamine. The electrode Surface waS characterized electrochemically and SpectroScopically. Poly(vinylferrocene) (PVF) in electrode waS uSed aS an electron tranSfer mediator in the electrochemical oxidation of compoundS due to itS perfect reverSible Redox propertieS. Multi-wall carbon nanotubeS (MWCNTS) / Alizarin Red S (ARS)–PVF electrode waS uSed to the determination of dopamine in the preSence of aScorbic acid in 0.1 M Sulphate buffer Solution at pH 7. The performance of the MWCNTS/ARS–PVF electrode waS evaluated by DPV and amperometry.
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carbon nanotubeS Alizarin Red S poly vinylferrocene modified glaSSy carbon electrode for Selective determination of dopamine in the preSence of aScorbic acid
Journal of Solid State Electrochemistry, 2012Co-Authors: Ugur Tamer, Nuran Özçiçek PekmezAbstract:A modified electrode waS fabricated by electrochemical formation of poly(vinylferrocene) on the multi-wall carbon nanotube-Alizarin Red S matrix coveRed glaSSy carbon electrode. A higher electrochemical activity waS obtained to the electrocatalytic oxidation of dopamine. The electrode Surface waS characterized electrochemically and SpectroScopically. Poly(vinylferrocene) (PVF) in electrode waS uSed aS an electron tranSfer mediator in the electrochemical oxidation of compoundS due to itS perfect reverSible Redox propertieS. Multi-wall carbon nanotubeS (MWCNTS) / Alizarin Red S (ARS)–PVF electrode waS uSed to the determination of dopamine in the preSence of aScorbic acid in 0.1 M Sulphate buffer Solution at pH 7. The performance of the MWCNTS/ARS–PVF electrode waS evaluated by DPV and amperometry.
Jonathan E. Halls - One of the best experts on this subject based on the ideXlab platform.
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Proton uptake vS. Redox driven releaSe from metal–organic-frameworkS: Alizarin Red S reactivity in UMCM-1
Journal of Electroanalytical Chemistry, 2013Co-Authors: Jonathan E. Halls, Sunyhik D. Ahn, Dongmei Jiang, Luke L. Keenan, Andrew D. Burrows, Frank MarkenAbstract:Small Redox active moleculeS Such aS Alizarin Red S are readily adSorbed and bound into Redox-inactive metal-organic framework hoStS Such aS UMCM-1. Redox activity of the bound gueSt molecule iS of intereSt for electrochemical converSionS and electrocatalySiS within poreS. For the Reduction of Alizarin Red S charge compenSating proton uptake into poreS iS expected. However, it iS Shown here that Alizarin Red S Redox proceSSeS in UMCM-1 immerSed in aqueouS electrolyte, ethanolic electrolyte, and in acetonitrile electrolyte media are dominated inStead by Surface proceSSeS and the potential driven Reductive releaSe of leuco-Alizarin Red S into the Surrounding Solution. Self-mediation via releaSed Alizarin Red S occurS, whereaS in acetonitrile a cobaltocene Redox mediator iS employed for the potential driven Redox releaSe of Alizarin Red S from the UMCM-1 hoSt lattice
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Reprint of proton uptake vS. Redox driven releaSe from metal–organic-frameworkS: Alizarin Red S reactivity in UMCM-1
Journal of Electroanalytical Chemistry, 2013Co-Authors: Jonathan E. Halls, Sunyhik D. Ahn, Dongmei Jiang, Luke L. Keenan, Andrew D. Burrows, Frank MarkenAbstract:AbStract Small Redox active moleculeS Such aS Alizarin Red S are readily adSorbed and bound into Redox-inactive metal–organic framework hoStS Such aS UMCM-1. Redox activity of the bound gueSt molecule iS of intereSt for electrochemical converSionS and electrocatalySiS within poreS. For the Reduction of Alizarin Red S charge compenSating proton uptake into poreS iS expected. However, it iS Shown here that Alizarin Red S Redox proceSSeS in UMCM-1 immerSed in aqueouS electrolyte, ethanolic electrolyte, and in acetonitrile electrolyte media are dominated inStead by Surface proceSSeS and the potential driven Reductive releaSe of leuco-Alizarin Red S into the Surrounding Solution. Self-mediation via releaSed Alizarin Red S occurS, whereaS in acetonitrile a cobaltocene Redox mediator iS employed for the potential driven Redox releaSe of Alizarin Red S from the UMCM-1 hoSt lattice.
