Probing traces of hydrogen peroxide by use of a biosensor based on mediator-free DNA and horseradish peroxidase immobilized on silver nanoparticles

A new electrochemical biosensor for determination of hydrogen peroxide (H₂O₂) has been developed by immobilizing horseradish peroxidase (HRP) on silver colloids (nanosilver) and use of a DNA-functionalized interface. In the presence of the DNA and the nanosilver the immobilized HRP gives a pair of w...

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Veröffentlicht in:	Analytical and bioanalytical chemistry 2007-01, Vol.387 (2), p.709-717
Hauptverfasser:	Wang, Fuchuang, Yuan, Ruo, Chai, Yaqin, Tang, Dianping
Format:	Artikel
Sprache:	eng
Schlagworte:	Biosensing Techniques - methods DNA Electrochemical biosensor Electrochemistry Enzymes, Immobilized Horseradish Peroxidase hydrogen peroxide Hydrogen Peroxide - analysis Nanoparticles Oxidation-Reduction Silver Silver nanoparticles
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