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Updated: Feb 10, 2026

Manufacture and Drug Delivery Applications of Silk Nanoparticles
Published on: October 8, 2016
Sustained Release Drug Delivery Applications of Polyurethanes
Michael B Lowinger1,2, Stephanie E Barrett3, Feng Zhang4
1College of Pharmacy, The University of Texas at Austin, 2409 University Avenue, Austin, TX 78712, USA. michael.lowinger@utexas.edu.
Polyurethanes offer versatile applications in modified drug delivery systems. This review highlights their use in sustained release formulations, examining factors influencing drug release kinetics.
Area of Science:
- Materials Science
- Pharmaceutical Sciences
- Biomedical Engineering
Background:
- Polyurethanes have broad industrial applications.
- Drug delivery research using polyurethanes has seen recent resurgence.
- Understanding polyurethane chemistry is key for drug delivery.
Purpose of the Study:
- To review polyurethane applications in modified-release drug delivery.
- To discuss factors affecting drug release from polyurethane systems.
- To highlight recent advancements and assessment methods.
Main Methods:
- Literature review of polyurethane-based drug delivery systems.
- Analysis of polyurethane chemistry and drug release mechanisms.
- Examination of factors influencing drug release kinetics.
Main Results:
- Polyurethanes are effective in developing modified-release drug delivery systems.
- Hydrophilic swelling and pore formers significantly modulate drug release.
- Drug properties and mechanical characteristics impact formulation performance.
Conclusions:
- Polyurethanes are a promising material for advanced drug delivery.
- Further research into material properties and formulation design is warranted.
- Optimizing polyurethane-based systems can enhance therapeutic outcomes.
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