Magnetic core-shell nanoparticles for drug delivery by nebulization

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Drug Delivery Systems

Background:

• Aerosolized therapeutics offer promising lung cancer treatment options.
• Novel nanocarriers are needed for effective nebulized drug delivery.
• Magnetic nanoparticles (MNPs) coated with poly(lactic-co-glycolic acid) (PLGA) were synthesized for this purpose.

Purpose of the Study:

• To develop and characterize biocompatible nanocarriers for nebulized drug delivery.
• To load nanoparticles with the anti-cancer drug quercetin.
• To evaluate the efficacy of these nanocarriers in targeting lung cancer cells via nebulization.

Main Methods:

• Synthesis and characterization of Fe3O4 magnetic nanoparticles (MNPs) coated with PLGA.
• Loading of quercetin into the PLGA-MNP nanocarrier system.
• Biocompatibility testing using human lung epithelial cells and in vivo mice models.
• Evaluation of nebulized drug delivery efficacy on human lung carcinoma A549 cells.

Main Results:

• Developed PLGA-MNPs showed particle sizes of 53.2 nm and hydrodynamic swelling of 293.4 nm.
• The nanocarrier system demonstrated excellent biocompatibility with no observed cytotoxicity in lung epithelial cells.
• In vivo studies in mice confirmed good tolerability following intranasal administration.
• Nebulized quercetin-loaded PLGA-MNPs significantly reduced A549 lung cancer cell viability.

Conclusions:

• A novel magnetic core-shell nanoparticle-based nanocarrier system was successfully developed.
• The feasibility of aerosol administration for targeted drug delivery was confirmed.
• This system holds potential for delivering therapeutics, including poorly soluble compounds, via inhalation.