Author:
Sharipov T I,Garafutdinov R R,Amangulova I T,Bakhtizin R Z
Abstract
Abstract
Recently, the study of the dependence of the physical characteristics of DNA molecules on their structure has become of considerable interest. Various methods are used to conduct such research, among which scanning probe microscopy (SPM) is becoming increasingly important. In this work, the short single-stranded DNA molecules consisting of dC nucleotides are visualized and their conductivity is investigated by SPM methods. It has turned out that the distribution of DNA molecules on the surface of the substrates is uniform. The measured current-voltage characteristics have made it possible to estimate the differential electrical resistance of individual d(C)12 molecules.