Nanoparticle liposomes

Another possible form of administration that is under study is through the use of nanoparticles with diameters in the range of 200-400 nm, obtained through the formation of nanocrystals or by creating nanoscale structures that capture the biomolecules. Depending on the materials employed and the preparation method, distinct particles can be used nanoparticles, liposomes, polymeric micelles, ceramic nanoparticles, and dendrimers. 

Various colloidal systems have been studied for use as potential ophthalmic delivery systems, including liposomes and nanoparticles. Liposomes are bioerodible and biocompatible systems consisting of microscopic vesicles composed of lipid bilayers surrounding aqueous compartments. Liposomes have demonstrated prolonged drug effect at the site of action but with reduced toxicity. Ophthalmic studies have included topical, subconjunctival, and intravitreal administration, but no commercial preparations are currently available for ophthalmic use. 

Figure 1 Formulation of controlled drug delivery systems using the supercritical fluid-derived RESS process (A) films, (B) microparticles/nanoparticles/ liposomes, (C) coated products including microcapsules, and (D) microporous foams.

General examples of this system are polymer micelles, microsphere, nanoparticles, liposomes, etc. The microparticle dispersion system has the following advantages ... 

Keywords Herbal drug, nanogreen, nanoparticle liposomes, curcumin, phytopharmaceutical... 

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