Electrochemistry of N-n-undecyl-N'-(sodium-p-aminobenzenesulfonate) thiourea and its interaction with bovine serum albumin.
In pH 5.5 phosphate buffer solution, N-n-undecyl-N'-(sodium-p-aminobenzenesulfonate) thiourea (UPT) produced a pair of redox peaks on the bare glassy carbon electrode. At the multi-walled carbon nanotube (MWNT) modified electrode, the electrochemical behavior of UPT enhanced greatly. In the presence of bovine serum albumin (BSA), the peak currents of UPT decreased linearly due to the formation of a super-molecular complex. This method was successfully applied to the determination of BSA in a bovine serum sample.
Luo
Hongxia
H
Department of Chemistry, Renmin University of China, Beijing 100872, China. luohx@ruc.edu.cn
Du
Yang
Y
Guo
Zhi-Xin
ZX
D000818:Animals; D004563:Electrochemistry; D004566:Electrodes; D037742:Nanotubes, Carbon; D010084:Oxidation-Reduction; D012710:Serum Albumin, Bovine / Q000737:chemistry*; D013890:Thiourea / Q000737:chemistry*
D037742:Nanotubes, Carbon; D012710:Serum Albumin, Bovine; D013890:Thiourea