Affiliation:
1. P. S. G. V. P. Mandal's College of Pharmacy, India
2. Rajiv Gandhi Proudyogiki Vishwavidhyalaya, India
Abstract
Liquid crystalline system is a thermodynamically stable phase which is characterized by anisotropy. Liquid Crystals (LCs) are also termed as mesophase as they exhibit isotropic properties and liquid like behavior under some conditions (alter in temperature and concentration). Liquid crystals are influenced by number of parameters includes concentration, temperature, pH, and presence of salt. Liquid crystals are divided on the basis of shape of the molecules into two groups one is calmitic and other is discotic. A range of liquid crystalline phase (called mesophases) can be categorized by their sort of arrangement. The alignment of fragments in liquid crystalline phases is extensive on the molecular scale. Liquid crystal technology has a most important influence on several areas of pharmacy science and engineering, as well as device technology. As a novel type of drug delivery system, liquid crystals are explored and examined, definitely achieve mounting significance in industrial and scientific purposes.
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