. 1 Scanning probe microscopy of biological and polymer samples . 1.1 Scanning probe microscopy of nucleic acids . 1.1.1 Basic techniques of sample preparation in scanning probe microscopy of nucleic acids . 1.1.2 Probe microscopy application for study of structure and properties of nucleic acids molecules and their complexes . 1.2 Basic techniques in study of biological and organic samples . 2 AFM study of RNA-proteins interaction . 2.1 Study of tobacco mosaic virus particles deproteinization and RNA