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RISS 인기검색어
- 검색키워드
- 저자 : Zhipeng Ma (검색결과 4 건)
- 무료
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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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Zhipeng Ma,Fengyang Jing,Liyin Hou,Lukai Fan,Yao Zhao,Yuqian Fan,Xiujuan Qin 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2020 NANO Vol.15 No.03
Manganese-based oxides are one of the most promising high-performance supercapacitor (SC) electrode materials. In this work, a stable MnOx nanowires@MnOx nanosheets core–shell heterostructure electrode material consisting of MnOx nanosheets grown uniformly on the surface of MnOx nanowires has been prepared by a simple liquid phase method followed by thermal treatment. The electrode displays a specific capacity of 336 F g -1 at 1 A g -1 and exhibits a good cycling life of 83% capacitance retention after 5000 cycles. This is mainly due to the synergy effect between the one-dimensional MnOx nanowires as the backbone structure and the two-dimensional MnOx nanosheets with large specific surface area provide more active sites and the rapid transmission of electrons.
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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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Wang Chen,Ma Yuanyuan,Shao Zhipeng,Huang Xiuli,Fei Jiaxuan 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.10
With the development of power industry, communication security has become an important issue affecting the stability of power system. IEC 62351 standard provides security for substation communication system. However, different transmission protocols may lead to different manufacturers to produce different understanding, manufacturing is not compatible with the device. In order to avoid such a situation, the Finite State Machine (FSM) theory is used to model and analyze the transmission protocol of IEC 62351 standard. In this paper, the FSM model is simulated by the StateFlow tool, and it can be considered that the FSM theory is applicable to the analysis of compliance with IEC 62351 standard.
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