A sensitive and selective on-line amperometric sulfite biosensor using sulfite oxidase immobilized on a magnetite-gold-folate nanocomposite modified carbon-paste electrode

We describe a novel amperometric sulfite biosensor, comprising a carbon-paste electrode (Fe3O4@Au-Cys-FA/CPE) modified with immobilized sulfite oxidase (SOx) on a gold-coated magnetite nanoparticle core, encased within a conjugated folic acid (FA) cysteine (Cys) shell. The biosensor electrode was fa...

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Veröffentlicht in:	Talanta (Oxford) 2016-08, Vol.156-157, p.154-162
Hauptverfasser:	Sroysee, Wongduan, Ponlakhet, Kitayanan, Chairam, Sanoe, Jarujamrus, Purim, Amatatongchai, Maliwan
Format:	Artikel
Sprache:	eng
Schlagworte:	Acceptability Amperometry Biosensor Biosensors Carbon paste electrode Carriers Electrical measurements Electrodes Fe3O4@Au Folic acid Oxidase Stability Sulfite Sulfites
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