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Published on: August 19, 2015
Light-Responsive Serinol-Based Polycarbonate and Polyester as Degradable Scaffolds.
Jingjiang Sun1,2, Dimitri Jung2, Timo Schoppa3
1Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao CN-266042, China.
Researchers developed light-responsive polymers using serinol. These self-immolative aliphatic polycarbonates (APCs) and polyesters (APEs) rapidly degrade under UV light, showing potential for controlled drug delivery systems.
Area of Science:
- Polymer Chemistry
- Materials Science
- Biomedical Engineering
Background:
- Stimuli-responsive self-immolative aliphatic polycarbonates (APCs) and polyesters (APEs) offer significant potential for biomedical and pharmaceutical applications.
- Developing novel polymers with controlled degradation is crucial for advanced material design.
Purpose of the Study:
- To synthesize light-responsive polycarbonate (LrPC) and polyester (LrPE) via polycondensation of protected serinol.
- To investigate the degradation mechanisms of these novel polymers under UV light.
- To explore the potential of these polymers in drug delivery systems.
Main Methods:
- Polycondensation of *o*-nitrobenzyl-protected serinol.
- UV light exposure to induce polymer degradation.
- Characterization using size exclusion chromatography (SEC), UV/vis, 1H NMR, and electrospray ionization time-of-flight mass spectrometry (ESI-ToF-MS).
- Preparation of nanoparticles (NP) for drug delivery studies.
Main Results:
- Rapid and complete degradation of LrPC and LrPE into oligomers and small molecules upon UV exposure.
- Elucidation of degradation pathways: APCs form oxazolidinone and oligourethanes; APEs form a ten-membered cyclic compound.
- Successful preparation of polymer nanoparticles, demonstrating potential for drug encapsulation and release.
Conclusions:
- Polycondensation of protected serinol provides a facile route to light-responsive self-immolative polymers.
- The distinct degradation mechanisms of APCs and APEs offer tunable properties.
- These polymers represent a promising platform for developing advanced drug delivery systems and expanding the family of biodegradable polymers.
