Liquid crystals are phase of matter having properties between those of a liquid and a solid. They are mainly divided into thermotropic, lyotropic and metallotropic liquid crystal. In this review, characterization technique, their properties and its various applications in pharmaceutics as Sustained release, transdermal patch, dermatological preparation like ointment, gel, optical lenses, dental care, microcapsule, polymer science, and gene therapy is discussed.
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