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Citation: GAO Xiao-Ling, GUO Yan, TIAN Yan-Ni, ZHAO Jian-Wei. Influence of Surfactant on the Apparent Electron Transfer Number of Hemoglobin[J]. Acta Physico-Chimica Sinica, ;2007, 23(08): 1178-1182. doi: 10.3866/PKU.WHXB20070808 shu

Influence of Surfactant on the Apparent Electron Transfer Number of Hemoglobin

1.
Institute of Molecular Science, Shanxi University, Taiyuan 030006, P. R. China; Key Laboratory of Analytical Chemistry for Life Science of the Ministry of Education, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210008, P. R. China

Received Date: 9 January 2007
Available Online: 18 June 2007

A modified electrode was prepared by sequential dropping didodecyldimethylammonium bromide (DDAB) with different concentrations and hemoglobin (Hb) solution on pyrolytic graphite (PG) electrode. The electrochemical property of the modified electrode was studied by cyclic voltammetry and UV spectrum. The data analyzed with Laviron model showed that with increasing the DDAB concentration, the thickness of films increased and the heme was released from hemoglobin, so the electrochemical reaction changed from a double-electron process to a single-electron process.
- Hemoglobin; Didodecyldimethylammoniumbromide; Surface electrochemistry; Electron transfer number
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