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Related Experiment Videos

Controlled release from coated polymer microparticles embedded in tissue-engineered scaffolds.

Y Hu1, J O Hollinger, K G Marra

  • 1Bone Tissue-Engineering Center, Carnegie Mellon University, Pittsburgh, PA 15213, USA.

Journal of Drug Targeting
|February 2, 2002
PubMed
Summary

This study explores controlled protein release from engineered scaffolds for tissue growth. Poly(D,L-lactic-co-glycolic acid) microparticles containing bovine serum albumin were fabricated into scaffolds, showing potential for sustained drug delivery.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Drug Delivery Systems

Background:

  • Controlled protein release is crucial for tissue-engineered implants to enhance vascularization and accelerate tissue regeneration.
  • Poly(D,L-lactic-co-glycolic acid) (PLGA) is a widely used biodegradable polymer for drug delivery and tissue engineering applications.

Purpose of the Study:

  • To investigate the controlled release of bovine serum albumin (BSA) from PLGA microparticles incorporated into tissue-engineered scaffolds.
  • To develop a novel method for integrating coated polymeric microparticles into PLGA scaffolds during fabrication for sustained release.

Main Methods:

  • Bovine serum albumin (BSA) was encapsulated within PLGA microparticles.
  • PLGA microparticles were coated with poly(vinyl alcohol).

Related Experiment Videos

  • Coated microparticles were incorporated into PLGA tissue-engineered scaffolds during fabrication, and BSA release was measured.

    • Main Results:

    • BSA release profiles were measured from PLGA microparticles, coated PLGA microparticles, and microparticles embedded within porous PLGA scaffolds.
    • The study demonstrates a novel approach for incorporating coated polymeric microparticles into PLGA scaffolds during fabrication.

    Conclusions:

    • The developed method allows for the incorporation of coated polymeric microparticles into PLGA scaffolds during fabrication.
    • This approach holds promise for the long-term, controlled release of therapeutic agents like growth factors or drugs from tissue-engineered implants.