Effect of Ti2Cu precipitation on antibacterial property of Ti-5Cu alloy

Wu, Ju‐Hui; Chen, Ker-Kong; Chao, Chih-Yeh; Chang, Y. Austin; Du, Je‐Kang

doi:10.1016/j.msec.2019.110433

Cited by 37 publications

(26 citation statements)

References 39 publications

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“…It is reported that high Cu content or Ti 2 Cu phase can accelerate the release of Cu 2? , which implies that the inducing high volume fraction of Ti 2 Cu phase from Ti-Cu alloys could offer superior antibacterial [37]. In this work, the samples without and with cold rolling (Fig.…”

Section: Effect Of Ti 2 Cu Phase On Antibacterial Propertymentioning

confidence: 83%

Optimization of mechanical and antibacterial properties of Ti-3wt%Cu alloy through cold rolling and annealing

Yang

Zhu

et al. 2021

Rare Met.

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In this work, a process of cold rolling with 70% thickness reduction and different annealing temperatures was selected to regulate the microstructure of Ti-3wt%Cu alloy. Microstructural evolution, mechanical properties and antibacterial properties of the Ti-3wt%Cu alloy under different conditions were systematically investigated in terms of X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), tensile and antibacterial test. The results indicated that cold rolling could dramatically increase the ultimate tensile stress (UTS) from 520 to 928 MPa, but reduce the fracture strain from 15.3% to 3.8%. With the annealing temperature increasing from 400 to 800 °C for 1 h, the UTS decreased from 744 to 506 MPa and the fracture strain increased from12.7% to 24.4%. Moreover, the antibacterial properties of the Ti-3wt%Cu alloy under different conditions showed excellent antibacterial rate ([ 96.69%). The results also indicated that the excellent combination of strength and ductility of the Ti-3wt%Cu alloy with cold rolling and following annealing could be achieved in a trade-off by tuning the size and distribution of Ti 2 Cu phase, which could increase the applicability of the alloy in clinical practice. More importantly, the antibacterial properties maintained a good stability for the Ti-3wt%Cu alloy under different conditions. The excellent combination of mechanical properties and antibacterial properties could make the Ti-3wt%Cu alloy a good candidate for long-term orthopaedic implant application.

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Section: Effect Of Ti 2 Cu Phase On Antibacterial Propertymentioning

confidence: 83%

Optimization of mechanical and antibacterial properties of Ti-3wt%Cu alloy through cold rolling and annealing

Yang

Zhu

et al. 2021

Rare Met.

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“…Numerous studies have shown that regardless of whether alloys are stainless steel or titanium, the appropriate addition of copper can bring antibacterial properties to the material [28,32,36,37]. However, considering the actual application conditions, the oral environment is complex, and the material is soaked in saliva for a long time.…”

Section: Discussionmentioning

confidence: 99%

“…The antibacterial properties of as-cast and as-forged 304 SS and Cu-bearing 304 SS were evaluated according to the JIS Z2801-2000 specifications [28]. The experimental specimens were sterilized using laboratory autoclaves (MLS-3781L, Tokyo, Japan).…”

Section: Antibacterial Testingmentioning

confidence: 99%

Effect of Low Copper Addition to As-Forged 304 Stainless Steel for Dental Applications

Chen

Chao

Chen

et al. 2020

Metals

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The aim of this study was to investigate the effect of incorporating low copper (0, 0.5, 1, 1.5, and 2 wt.%) additions into as-forged AISI 304 stainless steel (304SS). The microstructures and mechanical properties of the steel were examined using scanning electron microscopy and a universal testing machine. The antibacterial properties of the Cu-bearing 304SS specimens were investigated using Escherichia coli. Each specimen was soaked in artificial saliva to detect the release of copper ions through inductively coupled plasma atomic emission spectrometry. The addition of copper had no significant effect on the microstructure of the as-forged Cu-bearing 304SS, but it slightly increased its maximum tensile strength. The antibacterial rate of the as-cast and as-forged 304SS with 2 wt.% Cu was over 80%, which corresponded to an increase in the release of copper ions. This study demonstrates that low-Cu-content stainless steel can reduce bacteria and can be a suitable material for the oral environment because of the low release of Cu ions.

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“…Zirconium (Zr) metal exhibits the highest biocompatibility of all metals in the body, and Zr compounds are of low toxicity [ 14 ]. However, these materials have no antibacterial properties and lead to bacterial infections in clinical applications [ 15 ]. Copper (Cu) is another essential trace element present in human and animal tissue [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Antimicrobial Properties of Zr-Cu-Ti Thin-Film Metallic Glass Deposited Using High-Power Impulse Magnetron Sputtering

et al. 2022

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Zr-Cu based thin-film metallic glass (TFMG) has good glass-forming ability and the addition of a third element can create a chaotic system capable of inhibiting the nucleation and growth of crystals. This study focused on TFMGs made with Zr, Cu, and Ti in various compositions deposited via high-impulse magnetron sputtering on silicon and 304 stainless-steel substrates. Detailed analysis was performed on the microstructure and surface characteristics of the resulting coatings. Transmission electron microscopy revealed that the multilayer structure changed to a nanocrystalline structure similar to an amorphous coating. The excellent hydrophobicity of Zr-Cu-Ti TFMGs can be attributed to their ultra-smooth surface without any grain boundaries. The excellent antimicrobial effects can be attributed to a hydrophobic surface resisting cell adhesion and the presence of copper ions, which are lethal to microbes.

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Effect of Ti2Cu precipitation on antibacterial property of Ti-5Cu alloy

Cited by 37 publications

References 39 publications

Optimization of mechanical and antibacterial properties of Ti-3wt%Cu alloy through cold rolling and annealing

Optimization of mechanical and antibacterial properties of Ti-3wt%Cu alloy through cold rolling and annealing

Effect of Low Copper Addition to As-Forged 304 Stainless Steel for Dental Applications

Microstructure and Antimicrobial Properties of Zr-Cu-Ti Thin-Film Metallic Glass Deposited Using High-Power Impulse Magnetron Sputtering

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