Author/Authors :
Ferancov?، نويسنده , , Adriana and Adamovski، نويسنده , , Miriam and Gründler، نويسنده , , Peter and Zima، نويسنده , , Ji?? and Barek، نويسنده , , Ji?? and Mattusch، نويسنده , , Jürgen and Wennrich، نويسنده , , Rainer and Labuda، نويسنده , , J?n، نويسنده ,
Abstract :
Biosensors based on DNA and DNA-carbon nanotubes film immobilized at the surface of a screen-printed carbon electrode were used for simple in vitro tests of chemical toxicity. The damage to DNA caused by tin(II) and arsenic(III) compounds as components of specific reaction media was evaluated by means of an electrochemical DNA marker, [Co(phen)3]3+, as the portion of original dsDNA which survives an incubation of the biosensor in the cleavage medium. The results were confirmed by the electrically heated electrode and by the measurement of the DNA guanine moiety signal.
Keywords :
TIN , Arsenic , DNA damage , DNA biosensor , Voltammetry
