This is a good article. Follow the link for more information. The contrasting areas in the textures correspond to domains where thermotropic liquid crystals pdf liquid-crystal molecules are oriented in different directions. Within a domain, however, the molecules are well ordered.
Examples of liquid crystals can be found both in the natural world and in technological applications. Lyotropic liquid-crystalline phases are abundant in living systems but can also be found in the mineral world. For example, many proteins and cell membranes are liquid crystals. They exchanged letters and samples.
Reinitzer’s Viennese colleague von Zepharovich also indicated that the intermediate “fluid” was crystalline. The exchange of letters with Lehmann ended on April 24, with many questions unanswered. Reinitzer presented his results, with credits to Lehmann and von Zepharovich, at a meeting of the Vienna Chemical Society on May 3, 1888. After his accidental discovery, Reinitzer did not pursue studying liquid crystals further. The research was continued by Lehmann, who realized that he had encountered a new phenomenon and was in a position to investigate it: In his postdoctoral years he had acquired expertise in crystallography and microscopy. Lehmann started a systematic study, first of cholesteryl benzoate, and then of related compounds which exhibited the double-melting phenomenon.