Contact
    Start Publications The adsorption of cytochromes on a modified surface of gold ...
    ←  Publication Finder
    QSense

    The adsorption of cytochromes on a modified surface of gold electrodes

    Year: 2010

    Journal: Russion Journal of Physical Chemistry A, Volume: 84 Issue: 6 Pages: 1049-1052 Published: June 2010, 20100827

    Authors: Zhavnerko G. K. 1, Paribok I. V. 1, Agabekov V. E. 1, Zmachinskaya Yu. A. 1, Usanov S. A. 2

    Last authors: S. A. Usanov

    Organizations: (1) Institute of Chemistry of New Materials, Belarussian Academy of Sciences, Minsk, 220141, Belarus (2) Institute of Bioorganic Chemistry, Belarussian Academy of Sciences, ul. Zhodinskaya 5/2, Minsk, 220141, Belarus

    Country: Belarus

    The adsorption of cytochromes b 5 and c on the surface of gold electrodes, including the surface modified with cysteine, was studied. The quartz crystal microbalance method with parallel dissipation energy measurements, microcontact printing, and atomic-force microscopy were used to show that the special features of the structure and morphology of two-component cytochrome b 5 and c films were determined by the nature of the proteins themselves and the influence of the modifying “sublayer.” The largest changes in the weight of films and dissipation energy were observed in the adsorption of cytochrome b 5 on a cytochrome c film deposited on a cysteine sublayer. Atomic-force microscopy measurements showed that strong interaction between cytochrome c and b 5 molecules on the surface of gold modified with cysteine could be related to the formation of the corresponding protein complex.