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Antimicrobial Characterization of Advanced Materials for Bioengineering Applications
08:08

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Published on: August 4, 2018

Antimicrobial modification of polyester by admicellar polymerization.

Xuehong Ren1, Lei Kou1, Hasan B Kocer2

  • 1Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849.

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
|November 6, 2008
PubMed
Summary

New N-halamine coatings on polyester fibers create effective antimicrobial textiles. These biocidal surfaces rapidly inactivate bacteria like Staphylococcus aureus and E. coli, offering durable protection through regeneration.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Antimicrobial Technology

Background:

  • Development of advanced antimicrobial materials is crucial for preventing infections.
  • Polyester fibers are widely used but lack inherent antimicrobial properties.
  • N-halamine compounds offer a promising route to create active biocidal surfaces.

Purpose of the Study:

  • To synthesize a novel N-halamine monomer, 3-(4'-vinylbenzyl)-5,5-dimethylhydantoin (VBDMH).
  • To create antimicrobial thin films on polyester fibers using VBDMH.
  • To evaluate the efficacy and durability of the resulting biocidal polyester fibers.

Main Methods:

  • Synthesis of VBDMH monomer.
  • Surface polymerization of VBDMH onto polyester fibers using a cationic surfactant.
  • Characterization of coated fibers using FTIR and SEM.
  • Activation of biocidal properties via sodium hypochlorite treatment.
  • Antimicrobial testing against Staphylococcus aureus and Escherichia coli O157:H7.
  • Assessment of coating stability through washing and UVA irradiation tests.
  • Evaluation of chlorine regeneration capability.

Main Results:

  • Successful synthesis and surface polymerization of VBDMH onto polyester fibers.
  • N-halamine coatings demonstrated potent biocidal activity, inactivating S. aureus in 10 min and E. coli O157:H7 in 30 min.
  • The antimicrobial coatings exhibited excellent stability under washing and UVA irradiation.
  • Lost chlorine could be regenerated, restoring biocidal activity.

Conclusions:

  • VBDMH is an effective N-halamine monomer for creating durable antimicrobial polyester fibers.
  • The developed biocidal coatings show rapid and complete bacterial inactivation.
  • These antimicrobial textiles possess stable and regenerable properties, suitable for various applications.