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Updated: Feb 16, 2026
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Microwave-assisted Functionalization of Polyethylene glycol and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation
Published on: October 29, 2013
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A bio-based pro-antimicrobial polymer network via degradable acetal linkages.
Douglas V Amato1, Dahlia N Amato1, Logan T Blancett2
1School of Polymer Science and Engineering, The University of Southern Mississippi, Hattiesburg, MS 39406, United States.
Acta Biomaterialia
|December 23, 2017
Summary
Researchers developed a new degradable polymer network (PANDA) that slowly releases an antimicrobial compound derived from star anise. This PANDA system offers sustained, broad-spectrum antimicrobial activity with minimal toxicity, addressing the threat of antibiotic resistance.
Area of Science:
- Polymer Chemistry
- Materials Science
- Antimicrobial Agents
Background:
- Rising antibiotic resistance and immunosuppression necessitate novel antimicrobial strategies.
- Essential oils (EOs) show promise but face challenges like poor solubility and volatility.
- Covalent polymer attachment can overcome EO limitations, enabling controlled release.
Purpose of the Study:
- To synthesize a fully degradable, bio-based, sustained-release pro-antimicrobial polymer network.
- To investigate the controlled release of p-anisaldehyde (pA) from the polymer.
- To evaluate the antimicrobial efficacy and cytotoxicity of the developed material.
Main Methods:
- Synthesis of a UV-curable acetal monomer from p-anisaldehyde (pA).
- Photopolymerization into a thiol-ene network (PANDA).
- Surface erosion studies under varying pH conditions.
- Confocal and transmission electron microscopy for cell membrane disruption analysis.
Main Results:
- PANDA networks exhibit sustained release of pA over 38 days under acidic conditions.
- Released pA effectively inhibits bacterial and fungal pathogens by disrupting cell membranes.
- PANDA demonstrates minimal cytotoxicity to epithelial cells and macrophages.
Conclusions:
- The PANDA platform provides a fully degradable, sustained-release antimicrobial system.
- This approach offers a promising pathway for developing EO-based antimicrobial materials.
- Potential applications span agriculture, pharmaceuticals, cosmetics, and the food industry.
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