The present review article relates to some theoretical aspects of liquid crystals, particularly types and phases of liquid crystals. In recent years mesophase has gained a great deal of attention and is yet another exciting lipid-based system for drugs, Proteins, and vaccine delivery. On the whole, the existing research advancement of different phases of liquid crystals as a drug delivery system has been discussed and explored in detail. It is concluded that different phases of liquid crystals are promising to sustain the drug release from the internal nanostructure. Peptide-based therapeutics and enzymes can also be delivered through liquid crystals. Liquid crystals may be the drug carriers of choice soon.

本综述文章涉及液晶的一些理论方面，特别是液晶的类型和相。近年来，中间相受到了广泛的关注，并且是另一种令人兴奋的基于脂质的药物，蛋白质和疫苗递送系统。总体上，已经详细讨论并探索了液晶不同相作为药物输送系统的现有研究进展。结论是，液晶的不同相有望维持药物从内部纳米结构的释放。基于肽的治疗剂和酶也可以通过液晶传递。液晶可能很快就会成为药物的选择。