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Journal of Structural Chemistry

2009 year, number 5

LIGHT-INDUCED NONCOVALENT FIXATION OF DNA AND SYNTHETIC POLYIONS ON THE SURFACE OF SILICON SINGLE CRYSTALS

I. L. Volkov, N. V. Bazlov, A. S. Bondarenko, O. F. Vyvenko, N. A. Kas'yanenko
Keywords: DNA, polyions, silicon surface, noncovalent fixation, light, AFM
Pages: 999-1006

Abstract

The paper presents a simple method for fixing DNA and synthetic polyions on the surface of p and n type Si(100) single crystals. Different methods for preparing the surface for DNA fixation are compared. It is shown that the conformation of macromolecules fixed on a substrate depends on the presence of bivalent counterions in solution and the charge properties of the surface and polymer. The results of fixation were checked and analyzed by atomic force microscopy (AFM).