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Antibacterial mesoporous molecular sieves modified with polymeric N-halamine
Yingfeng Wang1, Lin Li1, Ying Liu1
1Key Laboratory of Eco-textiles of Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi, Jiangsu, 214122, China.
Materials Science & Engineering. C, Materials for Biological Applications
|September 11, 2016
Summary
Researchers developed a novel porous N-halamine material by grafting a polymer onto mesoporous molecular sieves (SBA-15). This material demonstrates potent antibacterial activity against S. aureus and E. coli, showing promise for water treatment and biomaterials.
Area of Science:
- Materials Science
- Nanotechnology
- Antimicrobial Research
Background:
- N-halamine materials offer potent biocidal properties.
- Mesoporous materials like SBA-15 provide high surface area for functionalization.
- Developing effective antimicrobial surfaces is crucial for public health and environmental safety.
Purpose of the Study:
- To synthesize and characterize a novel porous N-halamine material.
- To evaluate the antibacterial efficacy of the modified material.
- To explore potential applications in water treatment and biomaterials.
Main Methods:
- Synthesis of Poly [5,5-dimethyl-3-(3'-triethoxysilylpropyl)-hydantoin] (PSPH).
- Grafting of PSPH onto mesoporous molecular sieves (SBA-15).
- Characterization using SEM, TEM, FTIR, XPS, TGA, XRD, and BET analysis.
- Antibacterial testing against S. aureus and E. coli O157:H7.
Main Results:
- Successful grafting of PSPH onto SBA-15 was confirmed.
- The morphology and structure of SBA-15 were minimally affected by the modification.
- The N-halamine modified SBA-15 achieved 100% inactivation of S. aureus and E. coli O157:H7 within 1 minute.
- High antibacterial efficacy was demonstrated with log reductions of 8.05 and 7.92, respectively.
Conclusions:
- The developed N-halamine modified mesoporous molecular sieves exhibit excellent antibacterial properties.
- The material shows significant potential for applications in water purification and the development of antimicrobial biomaterials.
