Development of Quercetin Based Nanodispersions

Area of Science:

• Natural Products Chemistry
• Materials Science
• Nanotechnology

Background:

• Polyphenols, including flavonoids like quercetin, are bioactive natural products with antioxidant properties.
• Developing nanoformulations for natural compounds is an active research area.
• Quercetin has not been previously utilized for polymer-free nanodispersion production.

Purpose of the Study:

• To develop and characterize quercetin nanodispersions without coating polymers.
• To investigate the influence of surfactant type, amount, and stirring speed on nanodispersion properties.
• To evaluate the stability and potential industrial applicability of the developed nanodispersions.

Main Methods:

• Emulsification-evaporation technique was employed for nanodispersion preparation.
• A 1(6).2(2) experimental factorial design was used to optimize formulation parameters.
• Particle size and polydispersity index were analyzed using variance analysis over seven days.

Main Results:

• Surfactant type significantly affected particle size and polydispersity index.
• Surfactant amount also influenced particle size after seven days.
• A specific formulation with 3% polyethylene glycol 400 monooleate achieved a mean droplet size of 129.4 nm and a low polydispersity index (0.173) after seven days, indicating good stability.

Conclusions:

• Quercetin nanodispersions can be successfully prepared without coating polymers.
• The developed low-energy method offers potential cost advantages for industrial applications.
• Optimized nanodispersions exhibit promising stability and homogeneity for potential use.