Fabrication of superparamagnetic nano-silica@ quercetin-encapsulated PLGA nanocomposite: Potential application for

Lirui Wang1, Min Feng1, Yuexia Li1

  • 1Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, PR China.

Insights

This study developed a novel quercetin-loaded nanocomposite to combat cardiovascular diseases. The new material enhances quercetin

Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Cardiovascular Research

Background:

  • Cardiovascular diseases (CVMs) are a leading cause of death globally and are increasing in China.
  • Oxidative stress and free radicals play a crucial role in atherosclerosis and other heart conditions.
  • Quercetin (QC), a potent antioxidant, shows promise in protecting against CVMs but suffers from poor solubility and stability.

Purpose of the Study:

  • To develop a novel polymeric superparamagnetic nano-silica (SiN)@poly(lactic-co-glycolic acid) (PLGA) nanocomposite loaded with quercetin (QC).
  • To enhance the aqueous solubility and stability of quercetin for improved therapeutic efficacy.
  • To create a potential drug delivery system for preventing atherosclerosis and other CVMs.

Main Methods:

  • Fabrication of SiN@PLGA nanocomposite via a lyophilization method.
  • Characterization of the nanocomposite using Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM).
  • Evaluation of quercetin release profile from the nanocomposite over time.

Main Results:

  • Successful synthesis of spherical SiN@PLGA nanocomposite with a smooth surface and uniform particle size distribution.
  • Confirmation of nanocomposite structure and morphology via SEM and TEM analyses.
  • Demonstration of controlled quercetin release from the developed nanocomposite system.

Conclusions:

  • The developed SiN@PLGA nanocomposite effectively encapsulates quercetin, improving its solubility and stability.
  • This novel nanocomposite shows potential as a drug delivery system for quercetin.
  • The findings support the use of this quercetin-loaded nanocomposite for the prevention and treatment of cardiovascular diseases, particularly atherosclerosis.

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