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RISS 인기검색어
- 검색키워드
- 저자 : Maoli Yin (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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Preparation of Durable Antibacterial Cellulose with AgCl Nanoparticles
Zhipeng Ma,Maoli Yin,Zhenming Qi,Xuehong Ren 한국섬유공학회 2018 Fibers and polymers Vol.19 No.10
In this study, a facile method was developed to coat AgCl nanoparticles (NPs) onto knitted cotton fabrics. The AgCl NPs were characterized by ultraviolet absorption spectrum, X-ray diffraction (XRD) and dynamic laser light scattering (DLS). The AgCl NPs were coated onto cotton fabrics through a pad-dry-cure process with the assistance of 1,2,3,4- butanetetracarboxylic acid (BTCA). Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), ICP-OES analysis and energy-dispersive X-ray spectroscopy (EDX) confirmed that AgCl NPs were successfully coated onto cotton fabrics. The prepared cotton samples exhibited excellent antimicrobial activity against both Gram-positive S. aureus and Gram-negative K. pneumonia bacteria. Rat skin fibroblast cytotoxicity testing demonstrated the treated cotton fabrics to be non-toxic. The washing durability evaluation showed that the antimicrobial function of cotton fabrics was durable to washing. In addition, the wrinkle resistance of the coated cotton fabrics was improved and there was no obvious change in whiteness.
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Durable N-halamine Antibacterial Cellulose Based on Thiol-ene Click Chemistry
Zhipeng Ma,Maoli Yin,Mengshuang Zhang,Zhenming Qi,Xuehong Ren,Tung-Shi Huang 한국섬유공학회 2019 Fibers and polymers Vol.20 No.2
Antibacterial cotton fabrics were prepared with 3-allyl-5,5-dimethylhydantoin (ADMH) by UV photoinitiated thiol-ene click chemistry after 3-mercaptopropyltriethoxysilane (MPTES) was introduced on the surface of cotton fabrics. The treated cotton fabrics were characterized by SEM, FT-IR and EDS. After chlorination with diluted sodium hypochlorite, the treated samples showed good antibacterial efficacy against S. aureus and E. coli O157:H7. About 106 of S. aureus and E. coli O157:H7 could be completely inactivated within 1 min and 5 min of contact, respectively. Compared to the control samples, the antibacterial treatment method used in this study only had a minor effect on the tensile strength of cotton fabrics. Besides, the treated cotton fabrics showed good storage stability and 77 % of the active chlorine remained after 30 days. After exposure to bleach solution, almost all of the active chlorine was restored. The prepared antimicrobial cotton fabrics showed good washing and UV light stability.
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Xinghuan Lin,Maoli Yin,Ying Liu,Lin Li,Xuehong Ren,Yuyu Sun,Tung-Shi Huang 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.63 No.-
Fibrous membranes based on polyhydroxybutyrate/poly-ε-caprolactone (PHB/PCL) blends were obtained by electrospinning. Composite nanoparticles produced from N-halamine precursors and silane precursors were used to modify silica hydrosol which were obtained by the condensation of tetraethylorthosilicate followed the Stöber method. The produced composite nanoparticles were characterized by TEM and FT-IR. The dip-pad process was used to coat the synthesized silica composite nanoparticles onto the fibrous membrane. The coated PHB/PCL fibrous membranes were characterized by SEM, FT-IR and TGA. After chlorination, the chlorinated fibrous membranes showed excellent hydrophobicity with water contact angle of 151° ± 1° and exhibited effective antimicrobial activity against Escherichia coli O157:H7 and Staphylococcus aureus with 99.95% and 99.91% bacterial reduction within 60 min of contact time, respectively. The coated membranes showed good stability and durability toward UVA light exposure and storage. The cell biocompatibility test indicated that the membranes have no cytotoxicity. Therefore, the designed antibacterial fibrous membranes with super hydrophobicity may have great potential for use in food packaging and biomedical materials.
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