Cholesteric liquid crystals

In the book the existing at present time scientific concepts about the cholesteric liquid crystals are considered: the structure of the molecules of the substances, which form them; the textures, which they form; the molecular structures, from which they consist; the unique physical properties, which they possess. On the basis of the property of cholesteric liquid crystals under the change of the temperature to change their color were used cholesteric liquidcrystal films and were developed: the device for diagnostics of breast cancer, which are usual and comfortable for the women under conducting of diagnostics that permits to obtain the qualitative, contrasting with the high accuracy colored image of benign or malignant tumor; the music color device, which permits to "revive" by the different colors image on the panel in accordance with the frequency spectrum of the signal, which is coming from the electronic-music device; the indicator of sorption processes, which ensures the indication of sorption on the surface of mineral, by simple, safe, express and cheap method.