title: Electrochemical investigation of interaction between mitomycin C and DNA in a novel drug-delivery system.
abstract: A novel drug-delivery system was developed by loading the anticancer drug, mitomycin C (MC) into an oil/water system with the aim of investigation by electrochemical sensing the interaction between the drug and DNA in microemulsion phase. The physical and physicochemical properties (droplet size, pH, viscosity, conductivity and refractive index) of this microemulsion were examined. The electrochemical detection of the interaction between MC and double-stranded DNA (dsDNA) in microemulsion phase was performed by using differential pulse voltammetry (DPV) in combination with a disposable sensor, pencil graphite electrode (PGE). The magnitude of guanine oxidation signal was monitored before and after interaction between MC and dsDNA. The effect of different experimental parameters, such as MC concentration, MC interaction time with dsDNA, and dsDNA concentration were also studied to find the optimum analytical performance based on electrochemical detection of this interaction in microemulsion phase.
authors.affiliation: Faculty of Pharmacy, Analytical Chemistry Department, Ege University, 35100 Bornova, Izmir, Turkey.
authors.forename: Hakan
authors.initials: H
authors.lastname: Karadeniz
authors.forename: Levent
authors.initials: L
authors.lastname: Alparslan
authors.forename: Arzum
authors.initials: A
authors.lastname: Erdem
authors.forename: Ercument
authors.initials: E
authors.lastname: Karasulu
mesh_terms: D015374:Biosensing Techniques / Q000379:methods; D004247:DNA / Q000008:administration & dosage* / Q000737:chemistry / Q000378:metabolism*; D004209:Disposable Equipment; D004305:Dose-Response Relationship, Drug; D016503:Drug Delivery Systems; D004347:Drug Interactions; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods; D004566:Electrodes; D004655:Emulsions / Q000737:chemistry; D006108:Graphite / Q000737:chemistry; D006147:Guanine / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D016685:Mitomycin / Q000008:administration & dosage* / Q000737:chemistry / Q000378:metabolism*; D010084:Oxidation-Reduction; D011199:Potentiometry; D012031:Refractometry; D014783:Viscosity
chemical_list: D004655:Emulsions; D016685:Mitomycin; D006147:Guanine; D006108:Graphite; D004247:DNA