The Experts below are selected from a list of 43548 Experts worldwide ranked by ideXlab platform
Ke Yang - One of the best experts on this subject based on the ideXlab platform.
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optimization of mechanical Property Antibacterial Property and corrosion resistance of ti cu alloy for dental implant
Journal of Materials Science & Technology, 2019Co-Authors: Shuyuan Zhang, Jiewen Wang, Hai Wang, Ke YangAbstract:Abstract Ti-Cu alloys with different Cu contents (3, 5 and 7 wt%) were fabricated and studied as novel Antibacterial biomaterials for dental application. The Ti-Cu alloys were annealing treated at different temperatures (740 °C, 830 °C and 910 °C) in order to obtain three typical microstructures, α-Ti + Ti2Cu, α-Ti + transformed β-Ti, and transformed β-Ti. Mechanical, Antibacterial and biocorrosion properties of Ti-Cu alloys with different microstructures were well analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), tensile test, electrochemical test and Antibacterial test. The results indicated that the Ti-Cu alloys with microstructure of α-Ti + Ti2Cu showed the best ductility compared with other Ti-Cu alloys with microstructures of α-Ti + transformed β-Ti and complete transformed β-Ti, and meanwhile, increase of the Cu content significantly contributed to the decreased ductility due to the increasing amount of Ti2Cu, which brought both solid solution strengthening and precipitation strengthening. Finally, the Ti-5Cu alloy with microstructure of α-Ti + Ti2Cu exhibited excellent ductility, Antibacterial Property and corrosion resistance, providing a great potential in clinical application for dental implants.
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In vitro degradation and Antibacterial Property of a copper-containing micro-arc oxidation coating on Mg-2Zn-1Gd-0.5Zr alloy
Colloids and Surfaces B: Biointerfaces, 2019Co-Authors: Junxiu Chen, Iniobong P. Etim, Muhammad Ibrahim, Yi Zhang, Ke YangAbstract:Abstract Copper (Cu) has a good Antibacterial effect and micro-arc oxidation (MAO) coating has good corrosion resistance for magnesium (Mg) alloys. If they are combined together, the coated Mg alloy is expected to have both good corrosion resistance and Antibacterial effect. In this work, the degradation, Antibacterial Property and cytotoxicity of a Cu-containing MAO coating on an extruded Mg-2Zn-1Gd-0.5Zr alloy were systematically studied. The results revealed that the addition of Cu could further improve the degradation resistance of MAO coated alloy. After two weeks immersion, the corrosion rate of Cu + MAO coated alloy was 0.16 mm/y, lower than those of both MAO coated and uncoated alloy. The release of Cu2+ from Cu + MAO coated alloy inhibited the bacterial proliferation. After 12 h co-culture, the Antibacterial rate reached 96%. Cytotoxicity test (MG63 cell) showed that Cu + MAO coated alloy had good biocompatibility. The Cu + MAO coating has great potential for application on Mg alloys due to its good corrosion resistance, Antibacterial Property and good biocompatibility.
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a new Antibacterial titanium copper sintered alloy preparation and Antibacterial Property
Materials Science and Engineering: C, 2013Co-Authors: Erlin Zhang, Jie Liu, Hongying Wang, Chunmin Wang, Ke YangAbstract:Copper element was added in pure titanium by a powder metallurgy to produce a new Antibacterial titanium-copper alloy (Ti-Cu alloy). This paper reported the very early stage results, emphasizing on the preparation, mechanical Property and Antibacterial activity. The phase constitution was analyzed by XRD and the microstructure was observed under SEM equipped with EDS. The hardness, the compressive strength and the corrosion resistance of Ti-Cu alloy were tested in comparison with cp-Ti. The Antibacterial Property of the Ti-Cu alloy was assessed by two methods: agar diffusion assay and plate-count method, in which Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) were used. XRD and SEM results showed that Ti2Cu phase and Cu-rich phase were synthesized in the Ti-Cu sintered alloy, which significantly increases the hardness and the compressive strength compared with cp-Ti and slightly improves the corrosion resistance. No Antibacterial activity was detected by the agar diffusion assay on the Ti-Cu alloy, but the plate-count results indicated that the Ti-Cu alloy exhibited strong Antibacterial Property against both bacteria even after three polishing treatments, which demonstrates strongly that the whole alloy is of Antibacterial activity. The Antibacterial mechanism was thought to be in associated with the Cu ion released from the Ti-Cu alloy.
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Antibacterial Property of Ce-bearing stainless steels
Journal of Materials Science, 2007Co-Authors: H. M. Jing, Ke Yang, Yongqian Liu, Zhimin YaoAbstract:Rare earth (RE) elements inhering in low toxicity have been widely used in biomedicine. The RE elements can also improve the hot workability, corrosion resistance and mechanical properties of stainless steels. However, the Antibacterial mechanisms of the RE elements are still under discussion and the Antibacterial Property of RE-bearing stainless steels has not yet been investigated or reported so far. In this paper several Ce-bearing stainless steels were prepared, the microstructure of the steels was examined, and the Antibacterial Property of Ce-bearing stainless steels was investigated. It was found that Ce-rich zones were precipitated in the Ce-bearing stainless steels and the volume fraction of the Ce-rich zones increased with increasing Ce content. The Ce-bearing stainless steels showed excellent Antibacterial Property when the amount of Ce added was above a critical value. Compared to the conventional Cu-bearing Antibacterial stainless steels, the Ce-bearing stainless steels investigated presently exhibited good Antibacterial ability without any thermal aging treatment. The Antibacterial mechanism of Ce-bearing stainless steels is also discussed.
Feng Wang - One of the best experts on this subject based on the ideXlab platform.
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One-bath two step method combined surface micro/nanostructures treatment to enhance antifouling and Antibacterial Property of PTFE flat membrane
Journal of The Taiwan Institute of Chemical Engineers, 2019Co-Authors: Chengcai Li, Jieqi Wang, Feng WangAbstract:Abstract To improve antifouling and Antibacterial Property of Polytetrafluoroethylene (PTFE) flat microfiltration (MF) membrane, a novel and facile method was developed to modify the membrane via the polymer of Laccase-catalyzed self-polymerization of Gallic acid (GAL) and cross-linked to Chitosan (CS) using Citric acid (CA) as a cross-linker, and then surface micro/nanostructures treated by 3-Triethoxysilylpropylamine (KH550). The surface chemical composition, surface morphology, hydrophilicity, antifouling and Antibacterial Property of the PTFE flat membrane were investigated by ATR-FTIR, XPS, FESEM, water contact angle (WCA), bovine serum albumin (BSA) filtration and Antibacterial measurements, respectively. After using this low-cost and simple modification method, the PTFE flat membranes were endowed with excellent hydrophilicity, antifouling and Antibacterial properties. Finally, the surface stability of the modified membranes were studied and the modified membrane showed excellent stability under pH = 3–12.
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one bath two step method combined surface micro nanostructures treatment to enhance antifouling and Antibacterial Property of ptfe flat membrane
Journal of The Taiwan Institute of Chemical Engineers, 2019Co-Authors: Jieqi Wang, Yunying Luo, Haili Zhu, Feng Wang, Yuhai GuoAbstract:Abstract To improve antifouling and Antibacterial Property of Polytetrafluoroethylene (PTFE) flat microfiltration (MF) membrane, a novel and facile method was developed to modify the membrane via the polymer of Laccase-catalyzed self-polymerization of Gallic acid (GAL) and cross-linked to Chitosan (CS) using Citric acid (CA) as a cross-linker, and then surface micro/nanostructures treated by 3-Triethoxysilylpropylamine (KH550). The surface chemical composition, surface morphology, hydrophilicity, antifouling and Antibacterial Property of the PTFE flat membrane were investigated by ATR-FTIR, XPS, FESEM, water contact angle (WCA), bovine serum albumin (BSA) filtration and Antibacterial measurements, respectively. After using this low-cost and simple modification method, the PTFE flat membranes were endowed with excellent hydrophilicity, antifouling and Antibacterial properties. Finally, the surface stability of the modified membranes were studied and the modified membrane showed excellent stability under pH = 3–12.
Ning Liang - One of the best experts on this subject based on the ideXlab platform.
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Preparation and Properties of Zn2+/Diatomite Antibacterial Agent
Advanced Materials Research, 2010Co-Authors: Ning Liang, Hao Ding, Bai Kun WangAbstract:. Zn2+/diatomite Antibacterial agent was prepared by diatomite loading and solidifying Zn2+ in its holes through ion exchange and heat treatment at high temperature. Influencing factors on its preparation were discussed. Antibacterial Property and durability were characterized by measuring the diameters of inhibition rings and the minimal inhibitory concentrations (MIC). Whiteness and Antibacterial Property of the paint filling it were also tested. The results show that the agent has excellent Antibacterial Property and durability. The diameters of inhibition rings are larger than 10 mm even after 7 days. MIC is 312 g/mL and it is still low enough after durability test. The paint adding only 0.5% of it also has good Antibacterial Property while declining the whiteness slightly.
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Preparation of Zn2+/Stilbite Composite Particles Material and its Antibacterial Property
Advanced Materials Research, 2010Co-Authors: Hao Ding, Ning LiangAbstract:Zn2+/stilbite composite particles material was prepared by stilbite carrying Zn2+ and solidifying Zn2+ stably using natural stilbite as carrier. The physical properties such as particle size and whiteness, the functional properties such as Antibacterial Property, durability and the behavior of eliminating harmful gases, and the microstructure of Zn2+/stilbite composite particles material were investigated. The average particle size of Zn2+/stilbite composite particles material is 0.8mm, and its whiteness is 88, and the whiteness of the paint adding it isn’t influenced. Zn2+/stilbite composite particles material has excellent Antibacterial Property and durability. The restricting ratio against Escherichia coli and staphylococcus are both 100% when the concentration of Zn2+/stilbite composite particles material is 700mg/mL, and the restricting ratios are still 99% and 98.5% after it dipped into hot water for 12 hours, respectively. Zinc ions distribute homogeneously in part holes of stilbite and there are still many free holes in stilbite, which makes Zn2+/stilbite composite particles material have the function of eliminating harmful gases as well.
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preparation of zn2 stilbite composite particles material and its Antibacterial Property
Advanced Materials Research, 2010Co-Authors: Hao Ding, Ning LiangAbstract:Zn2+/stilbite composite particles material was prepared by stilbite carrying Zn2+ and solidifying Zn2+ stably using natural stilbite as carrier. The physical properties such as particle size and whiteness, the functional properties such as Antibacterial Property, durability and the behavior of eliminating harmful gases, and the microstructure of Zn2+/stilbite composite particles material were investigated. The average particle size of Zn2+/stilbite composite particles material is 0.8mm, and its whiteness is 88, and the whiteness of the paint adding it isn’t influenced. Zn2+/stilbite composite particles material has excellent Antibacterial Property and durability. The restricting ratio against Escherichia coli and staphylococcus are both 100% when the concentration of Zn2+/stilbite composite particles material is 700mg/mL, and the restricting ratios are still 99% and 98.5% after it dipped into hot water for 12 hours, respectively. Zinc ions distribute homogeneously in part holes of stilbite and there are still many free holes in stilbite, which makes Zn2+/stilbite composite particles material have the function of eliminating harmful gases as well.
Erlin Zhang - One of the best experts on this subject based on the ideXlab platform.
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In vivo Antibacterial Property of Ti-Cu sintered alloy implant.
Materials science & engineering. C Materials for biological applications, 2019Co-Authors: Xiaoyan Wang, Hui Dong, Jie Liu, Gaowu Qin, Dafu Chen, Erlin ZhangAbstract:Abstract In-vivo Antibacterial Property of Ti 10Cu sintered alloy was investigated in comparison with pure titanium (cp-Ti) by implanting the alloys with S. aureus suspension in the muscles of rabbits. The general appearance, the white blood cell (WBC) number, the bacteria number were checked and the pathological examination were analyzed. It has been shown that serious inflammation at day 4 and fester at day 14 were observed after implantation in cp-Ti group while only mild infection was observed at day 4 in the case of Ti 10Cu implants. Bacterial incubation results have also shown that lots of S. aureus were found in cp-Ti group at all intervals while only several bacteria at day 1 and day 4 and no bacteria after 7 days postimplantation can be found in Ti 10Cu group. All these results demonstrate the strong in vivo Antibacterial Property of Ti 10Cu alloy. The strong Antibacterial Property suggests that Ti 10Cu alloy might have potential application in orthopedic surgery and dental implant to reduce the implant-related infection or inflammation.
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a new Antibacterial co cr mo cu alloy preparation biocorrosion mechanical and Antibacterial Property
Materials Science and Engineering: C, 2016Co-Authors: Erlin Zhang, Cong LiuAbstract:Abstract Co-Cr-Mo alloys have been widely used in hip implants due to their good anti-corrosion and good wear resistance. However, complaint is still raising due to infection and inflammation. In this paper, Cu element was selected and added in Co-Cr-Mo alloy in order to develop Co-Cr-Mo-Cu alloys with Antibacterial Property based on the consideration that Cu element is a kind of Antibacterial agent. The microstructure, corrosion resistance, mechanical Property and wear Property of Co-Cr-Mo-Cu alloys was investigated in comparison with Co-Cr-Mo alloy. The results showed that the addition of Cu element slightly improved the corrosion resistance and had limited influence on the mechanical Property, but reduced the wear resistance. The Antibacterial Property of the Cu containing Co-based alloys was also assessed in comparison with Co-based alloy. It was demonstrated that the Cu-containing alloy exhibited strong Antibacterial ability against Staphylococcus aureus. It was deduced that the tiny Cu phases contributed to the strong Antibacterial activity. The strong Antibacterial Property and good corrosion resistance suggested that Cu-containing Co alloys could have potential application as an implant material.
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a new Antibacterial titanium copper sintered alloy preparation and Antibacterial Property
Materials Science and Engineering: C, 2013Co-Authors: Erlin Zhang, Jie Liu, Hongying Wang, Chunmin Wang, Ke YangAbstract:Copper element was added in pure titanium by a powder metallurgy to produce a new Antibacterial titanium-copper alloy (Ti-Cu alloy). This paper reported the very early stage results, emphasizing on the preparation, mechanical Property and Antibacterial activity. The phase constitution was analyzed by XRD and the microstructure was observed under SEM equipped with EDS. The hardness, the compressive strength and the corrosion resistance of Ti-Cu alloy were tested in comparison with cp-Ti. The Antibacterial Property of the Ti-Cu alloy was assessed by two methods: agar diffusion assay and plate-count method, in which Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) were used. XRD and SEM results showed that Ti2Cu phase and Cu-rich phase were synthesized in the Ti-Cu sintered alloy, which significantly increases the hardness and the compressive strength compared with cp-Ti and slightly improves the corrosion resistance. No Antibacterial activity was detected by the agar diffusion assay on the Ti-Cu alloy, but the plate-count results indicated that the Ti-Cu alloy exhibited strong Antibacterial Property against both bacteria even after three polishing treatments, which demonstrates strongly that the whole alloy is of Antibacterial activity. The Antibacterial mechanism was thought to be in associated with the Cu ion released from the Ti-Cu alloy.
Jieqi Wang - One of the best experts on this subject based on the ideXlab platform.
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One-bath two step method combined surface micro/nanostructures treatment to enhance antifouling and Antibacterial Property of PTFE flat membrane
Journal of The Taiwan Institute of Chemical Engineers, 2019Co-Authors: Chengcai Li, Jieqi Wang, Feng WangAbstract:Abstract To improve antifouling and Antibacterial Property of Polytetrafluoroethylene (PTFE) flat microfiltration (MF) membrane, a novel and facile method was developed to modify the membrane via the polymer of Laccase-catalyzed self-polymerization of Gallic acid (GAL) and cross-linked to Chitosan (CS) using Citric acid (CA) as a cross-linker, and then surface micro/nanostructures treated by 3-Triethoxysilylpropylamine (KH550). The surface chemical composition, surface morphology, hydrophilicity, antifouling and Antibacterial Property of the PTFE flat membrane were investigated by ATR-FTIR, XPS, FESEM, water contact angle (WCA), bovine serum albumin (BSA) filtration and Antibacterial measurements, respectively. After using this low-cost and simple modification method, the PTFE flat membranes were endowed with excellent hydrophilicity, antifouling and Antibacterial properties. Finally, the surface stability of the modified membranes were studied and the modified membrane showed excellent stability under pH = 3–12.
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one bath two step method combined surface micro nanostructures treatment to enhance antifouling and Antibacterial Property of ptfe flat membrane
Journal of The Taiwan Institute of Chemical Engineers, 2019Co-Authors: Jieqi Wang, Yunying Luo, Haili Zhu, Feng Wang, Yuhai GuoAbstract:Abstract To improve antifouling and Antibacterial Property of Polytetrafluoroethylene (PTFE) flat microfiltration (MF) membrane, a novel and facile method was developed to modify the membrane via the polymer of Laccase-catalyzed self-polymerization of Gallic acid (GAL) and cross-linked to Chitosan (CS) using Citric acid (CA) as a cross-linker, and then surface micro/nanostructures treated by 3-Triethoxysilylpropylamine (KH550). The surface chemical composition, surface morphology, hydrophilicity, antifouling and Antibacterial Property of the PTFE flat membrane were investigated by ATR-FTIR, XPS, FESEM, water contact angle (WCA), bovine serum albumin (BSA) filtration and Antibacterial measurements, respectively. After using this low-cost and simple modification method, the PTFE flat membranes were endowed with excellent hydrophilicity, antifouling and Antibacterial properties. Finally, the surface stability of the modified membranes were studied and the modified membrane showed excellent stability under pH = 3–12.