A STUDY ON THE STRUCTURE AND PIEZOELECTRIC PROPERTIES OF THE LIQUID CRYSTAL FILM OF DNA
DNA液晶膜的结构与压电性研究

The polarizing micrograph of the liquid crystal film of DNA is observed under crossed polariods and Hv scattering pattern is tested by means of the small-angle laser light scattering. The results show that the molecules of this polynucleotide in the film aggregate to form rod-like assemblies(molecular clusters) , in which the maximum polarizability directions are tilted to thier(long) rods axes. In this state of polarization, the oriented film of DNA reacts to uniaxial mechanical stress with measurable voltages. In the case of compression,they have a positive electric sign, in the case of dilatation, a negative.