title: Electrochemical studies oxidation of ciprofloxacin at nano-SnO2/PVS modified electrode and its interaction with calf thymus DNA.
abstract: In pH 6.0 phosphate buffer solutions (PBS), a glassy carbon electrode (GCE) modifying by nano-tin oxide/polyvinyl sulfonic potassium (nano-SnO2/PVS) exhibited an enhanced effectiveness for the oxidation of ciprofloxacin (CFX), which compared with a bare GCE or a nano-SnO2 modified electrode. In addition we also investigated the electrooxidation mechanism of the fluoroquinolone antibiotics (utilizing ciprofloxacin, ofloxacin, sparfloxacin and lomefloxacin) at the modified electrode. Furthermore, gel electrophoresis coupled with electrochemistry and spectra techniques were used to study the interaction of CFX and calf thymus DNA (ctDNA). These acquired data showed that the binding mode of CFX and DNA was mainly an intercalation mechanism.
authors.affiliation: College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids Anhui Normal University, Wuhu 241000, PR China.
authors.forename: Yuejuan
authors.initials: Y
authors.lastname: Cai
authors.forename: Yuzhong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Shao
authors.initials: S
authors.lastname: Su
authors.forename: Suping
authors.initials: S
authors.lastname: Li
authors.forename: Yonghong
authors.initials: Y
authors.lastname: Ni
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry*; D002939:Ciprofloxacin / Q000737:chemistry*; D004247:DNA / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D004587:Electrophoresis, Agar Gel; D007364:Intercalating Agents / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction; D011145:Polyvinyls / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry; D013451:Sulfonic Acids / Q000737:chemistry; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D007364:Intercalating Agents; D011145:Polyvinyls; D013451:Sulfonic Acids; D017971:Tin Compounds; C008959:lyapolate; D002939:Ciprofloxacin; D004247:DNA; C427203:calf thymus DNA; C045358:stannic oxide