Abstract

Multi-functional nanoparticles hold great promise for the effective treatment of many diseases. Zidovudine a commonly used anti-HIV drug, requires a delivery system for more effective treatment of AIDS. The present study focuses on the development of anti-viral drug-loaded hybrid nanoparticles (LPNs) of lipid and polymer consisting of carboxy methyl cellulose—zidovudine (AZT) core enclosed by a compritol (Comp)-polyethylene glycol shell. The characterization of drug loaded LPNs was done using TEM, DLS and FT-IR analysis. The drug loading efficiency, drug release, blood compatibility, MTT assay and cell uptake studies were carried out using the LPNs. The synthesized nanoparticles exhibited core–shell morphology with an average size of 161.65 ± 44.06 nm; the LPN also demonstrated 82% drug encapsulation efficiency with slow drug release behaviour. The hybrid nanoparticles were found to be blood compatible and non toxic. The rhodamine-labeled hybrid nanoparticles were also found to effectively enter the brain cells. The novel hybrid drug delivery system shows controlled drug release, biocompatibility and high drug loading efficiency. These LPNs obtained from natural polymers can provide an excellent platform for designing systems for targeted drug delivery.

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