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Temperature-Responsive Polysaccharide Microparticles Containing Nanoparticles: Release of Multiple Cationic/Anionic

Takumi Sato1, Yoshihiko Murakami1

  • 1Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, Naka-cho, Koganei-shi 2-24-16, Tokyo 184-8588, Japan.

Materials (Basel, Switzerland)
|July 9, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed novel polysaccharide microparticles encapsulating nanoparticles for controlled, temperature-responsive drug release. These advanced drug carriers facilitate efficient deep lung delivery and stepwise release of multiple compounds.

Keywords:
carrageenannanoparticlepolysaccharidepulmonary drug delivery

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Pharmaceutical Sciences

Background:

  • Pulmonary drug delivery often uses microparticles (>1 µm), with nanoparticles rarely employed due to exhalation risks.
  • Developing microparticles that encapsulate nanoparticles is crucial for advanced pulmonary drug delivery systems.

Purpose of the Study:

  • To investigate the development of polysaccharide microparticles containing nanoparticles for temperature-responsive, two-step drug release.
  • To create a versatile drug delivery system capable of releasing multiple compounds in a controlled manner.

Main Methods:

  • Synthesis of polysaccharide microparticles loaded with nanoparticles.
  • Characterization of particle size, morphology, and drug encapsulation efficiency.
  • Evaluation of temperature-responsive and stepwise release profiles of encapsulated compounds.

Main Results:

  • Successfully developed polysaccharide microparticles containing nanoparticles.
  • Demonstrated temperature-responsive and two-step release of differently charged compounds.
  • Confirmed efficient deep lung delivery of nanoparticles due to microparticle surface properties.

Conclusions:

  • Polysaccharide microparticles encapsulating nanoparticles offer a promising platform for controlled, multi-drug release.
  • These carriers are suitable for pulmonary administration and other routes, enabling temperature-responsive delivery.