Title
Electrochemical Sensor Based on Poly(Azure B)-DNA Composite for Doxorubicin Determination.
Abstract
A new voltammetric DNA sensor has been developed for doxorubicin determination on the platform of a glassy carbon electrode (GCE) covered with electropolymerized Azure B film and physically adsorbed native DNA. The redox properties of polymeric Azure B were monitored at various pH and scan rates. DNA application decreased the peak currents related to polymeric and monomeric forms of the dye, whereas incubation in doxorubicin solution partially restored the peaks in accordance with the drug and DNA concentration. The relative shift of the cathodic peak current caused by doxorubicin depended on the nominal DNA concentration and its application mode. In optimal conditions, the DNA sensor makes it possible to determine between 0.1 M to 0.1 nM doxorubicin (limit of detection 7 x 10(-11) M). The DNA sensor was tested on commercial doxorubicin formulations and on artificial samples the mimicked electrolyte content of human serum.
Year
DOI
Venue
2019
10.3390/s19092085
SENSORS
Keywords
Field
DocType
DNA sensor,doxorubicin determination,voltammetric sensor,electropolymerization,Azure B
Detection limit,Analytical chemistry,Nuclear chemistry,Glassy carbon,Electrolyte,Doxorubicin,Electrochemical gas sensor,DNA,Engineering,Monomer,Redox
Journal
Volume
Issue
ISSN
19
9
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Anna Porfireva121.88
Vyatseslav Vorobev200.34
Sofya Babkina300.34
Gennady Evtugyn422.56