title: DNA coated with cationic fullerene derivative. A possible microwire in water.
abstract: Fullerene derivative 2 carrying pyridinium cation bound to sonicated calf thymus DNA in water. The binding ratio was 1 fullerene unit to 1 phosphate residue, giving the complex where DNA strand is seemingly coated with electron-conducting fullerenes. Cyclic voltammetry shows three-step redox couples in the complex, and the current peaks were broadened and shifted to positive side as compared to uncomplexed 2. Binding of 2 onto grooves of DNA double helix was suggested.
authors.affiliation: Department of Chemical Systems and Engineering, Kyushu University, Fukuoka, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Takenaka
authors.forename: K
authors.initials: K
authors.lastname: Yamashita
authors.forename: M
authors.initials: M
authors.lastname: Takagi
authors.forename: T
authors.initials: T
authors.lastname: Hatta
authors.forename: O
authors.initials: O
authors.lastname: Tsuge
mesh_terms: D002244:Carbon; D004247:DNA; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004573:Electrolytes; D012996:Solutions
chemical_list: D004573:Electrolytes; D012996:Solutions; D002244:Carbon; D004247:DNA