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Parallel synthesis and high throughput dissolution testing of biodegradable polyanhydride copolymers.
Brandon M Vogel1, Joao T Cabral, Naomi Eidelman
1Polymers Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
Journal of Combinatorial Chemistry
|November 15, 2005
Summary
Researchers developed a high-throughput method to create and screen biodegradable polyanhydride copolymers for drug delivery. This combinatorial approach rapidly synthesizes and analyzes polymer libraries, accelerating the discovery of new drug carriers.
Area of Science:
- Polymer Chemistry
- Materials Science
- Biomedical Engineering
Background:
- Biodegradable polyanhydrides are promising for controlled drug delivery.
- Developing new drug carriers requires efficient synthesis and characterization methods.
- High-throughput screening is crucial for accelerating materials discovery.
Purpose of the Study:
- To demonstrate combinatorial synthesis of biodegradable polyanhydride copolymers.
- To develop high-throughput methods for screening polymer libraries.
- To investigate the relationship between copolymer composition and drug release rates.
Main Methods:
- Fabrication of multiwell substrates using rapid prototyping.
- Combinatorial synthesis of 100 biodegradable polyanhydride random copolymers.
- Characterization using infrared microspectroscopy and parallel dye dissolution studies with CCD imaging.
Main Results:
- Successfully synthesized and characterized a library of poly(1,6-bis(p-carboxyphenoxy)hexane-co-sebacic anhydride) copolymers.
- Developed high-throughput methods for parallel synthesis and drug release monitoring.
- Observed a decreasing dye release rate with increasing 1,6-bis(p-carboxyphenoxy)hexane content.
Conclusions:
- Combinatorial synthesis and high-throughput screening are effective for developing new drug delivery materials.
- The developed methodology enables rapid characterization of polymer libraries.
- This approach is applicable to various fields requiring high-throughput polymer synthesis and analysis.