DNA coated with cationic fullerene derivative. A possible microwire in water.
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.
Takenaka
S
S
Department of Chemical Systems and Engineering, Kyushu University, Fukuoka, Japan.
Yamashita
K
K
Takagi
M
M
Hatta
T
T
Tsuge
O
O
D002244:Carbon; D004247:DNA; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004573:Electrolytes; D012996:Solutions
D004573:Electrolytes; D012996:Solutions; D002244:Carbon; D004247:DNA