Article
Nanoscience & Nanotechnology
Yuqi Zhou, Guifang Wang, Tianqi Wang, Jiajia Wang, Xutao Wen, Haishui Sun, Lei Yu, Xiaoying Liu, Juanjuan Zhang, Qin Zhou, Yan Sun
Summary: In this study, a novel MAO-PDA-NC composite coating was successfully prepared to optimize the physical and chemical properties of titanium implant surface and stimulate osteoblast adhesion, proliferation, and osteogenic differentiation. The coating promoted stable bonding between the implant and bone tissue, accelerating early osseointegration.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2022)
Article
Materials Science, Multidisciplinary
Jincheng Tang, Zhongzhen Wu, Xiyu Yao, Yinghao Zhou, Yi Xiong, Yulong Li, Jingyuan Xu, Matthew S. Dargusch, Ming Yan
Summary: This study developed a surface-modified titanium implant with osseointegration and antibacterial functions, which is of great significance for the repair of infectious bone defects.
MATERIALS & DESIGN
(2022)
Article
Biotechnology & Applied Microbiology
Xiaojun Wang, Lina Mei, Xuesheng Jiang, Mingchao Jin, Yan Xu, Jianyou Li, Xiongfeng Li, Zhipeng Meng, Junkun Zhu, Fengfeng Wu
Summary: Titanium (Ti)-based alloys are widely used in tissue regeneration due to their improved biocompatibility, and HA-coated Ti produced through MAO and SHT treatment can enhance osteogenesis and angiogenesis both in vitro and in vivo, while also promoting M2 macrophages to regulate the immune environment, ultimately accelerating osseointegration.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Xianxing Xu, Hailun Xu, Qihao Chai, Ziyang Li, Zhentao Man, Wei Li
Summary: Total hip arthroplasty (THA) is commonly used to treat end-stage hip disease, but complications such as prosthesis loosening and periprosthetic infection can occur. This study developed a functionalized coating that combines micro-arc oxidation modification and vancomycin to prevent infection and promote osseointegration after THA. The coating successfully achieved the dual function of preventing infection and promoting osseointegration, providing a practical method for addressing complications after THA.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Coatings & Films
Ruoyun Wang, Tong Zhou, Jie Liu, Xinwen Zhang, Fei Long, Lei Liu
Summary: The excellent antibacterial activity of W-incorporated TiO2 coating is related to its strong electron storage capability, allowing the accumulation of valence-band holes to induce oxidation damage to bacterial cells. This finding provides a novel and controlled strategy for designing antibacterial coatings.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Xinxin Zhang, Tong Zhang, You Lv, Yupeng Zhang, Xueqin Lu, Junyan Xiao, Chen Ma, Zhuo Li, Zehua Dong
Summary: The Cu-incorporated TiO2 coating prepared by ultrasound-auxiliary micro-arc oxidation (UMAO) exhibits a uniform surface layer with a porous inner layer of TiO2 and an outer layer with amorphous Ca, P, O, and Cu components. Experimental results indicate that the introduction of ultrasonic vibration (UV) is conducive to the corrosion resistance, antibacterial capability, and cytocompatibility of the coating.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Binbin Kang, Dongmei Lan, Lei Liu, Rui Dang, Chao Yao, Ping Liu, Fengcang Ma, Shengcai Qi, Xiaohong Chen
Summary: This study fabricated Zn-TiO2 coatings on pure titanium to improve the bioactivity and antibacterial properties of implant materials, and promote the adhesion and proliferation of bone mesenchymal stem cells.
Article
Materials Science, Coatings & Films
Lei Liu, Fengcang Ma, Ping Liu, Shengcai Qi, Wei Li, Ke Zhang, Xiaohong Chen
Summary: Titanium and titanium alloys are biologically inert materials. Zinc and strontium were doped into the surface coating of implants to improve rapid osseointegration and resistance to bacterial infection. The coating mainly consists of rutile and anatase phases. It shows good antibacterial activity and promotes BMSCs proliferation and differentiation, with higher strontium content leading to greater proliferation.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Mingchao Ding, Jin Shi, Weiqi Wang, Dechao Li, Lei Tian
Summary: This study evaluated the bone response to micro-arc oxidation coated titanium alloy implants containing Ag. The results showed that the combination of micro-arc oxidation and Ag coating improved the surface morphology and osseointegration ability of the implants.
Article
Materials Science, Multidisciplinary
Zhuocheng Lyu, Yaochao Zhao, Shicheng Huo, Fan Wang, Xiangchao Meng, Zhiguo Yuan, Teng Long, You Wang
Summary: Implant-associated infection and insufficient implant osseointegration are common causes of implant failure. In this study, a multi-functional bioactive ion, copper (Cu), was incorporated into the polydopamine (PDA) coating on polyetheretherketone (PEEK) surfaces. The DA-Cu-II coated PEEK surfaces showed superior abilities of osteogenesis, angiogenesis, and antibiosis, as well as immunomodulatory effects. The coating also induced a mild and necessary inflammatory response, exhibiting excellent antibacterial activity and osseointegration. The findings suggest that the DA-Cu-II coated PEEK has great potential for orthopedic implants and provides new insights into novel modification strategies for PEEK materials.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Analytical
Mingqiang Pan, Suhui Luo, Bingjiao Yan, Jialu Ye, Shuo Zhang
Summary: In this study, a TiO2-SnO2 film sensitive to pH was prepared on a Ti substrate using a micro-arc oxidation technique operating in the AC mode. The microstructure and composition of the film were analyzed, revealing the presence of a porous structure and the formation of hydrophilic amorphous TiO2 and oxide SnO2. The doped TiO2-SnO2/0.5 films showed excellent pH-sensing properties, with a sensitivity of 64.60 mV/pH, fast response times, low hysteresis, good stability, and resistance to temperature and interference. The prepared TiO2-SnO2/0.5 films, combined with a commercial pH meter, successfully detected various fluids with an accuracy of +/- 0.09 pH.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Biomedical
R. Askarnia, M. Sobhani, M. Zare, H. Aghamohammadi, H. Staji
Summary: A composite coating with Al2O3 and ZrO2 particles was prepared on AZ31 magnesium alloy using micro-arc oxidation (MAO) technique. The addition of ZrO2 and Al2O3 ceramic particles reduced the surface pores of the composite coating. The hardness of the coating increased from about 380 to 620 MPa with the addition of Al2O3+ZrO2 particles and the wear rate decreased about 8 times. The wettability of the coating was improved by incorporating Al2O3 and/or ZrO2 particles, with Al2O3 being more effective than ZrO2. The antibacterial properties of the MAO coatings showed that Staphylococcus aureus bacteria were more sensitive to zirconia and alumina particles than Salmonella typhimurium bacteria after 24 hours of incubation.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Materials Science, Ceramics
Kunyu Ju, Xingyu Chen, Zhongwei Zhao
Summary: In this study, a micro-arc oxidation (MAO) process with calcium was introduced to improve the interfacial strength of Titanium with a bioceramic hydroxyapatite (HA) coating. The MAO coating comprised porous TiO2 with Ca or CaTiO3, and the HA coating on the MAO coating was confirmed to be plate-like Ca-deficient HA. The MAO coating containing Ca as a connecting interlayer showed promising results in improving the HA adhesion strength with an adhesive strength of 2.326 MPa.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Coatings & Films
Zi-Yi Zhang, Tian-Yu Huang, Da-Jun Zhai, Hai-Bo Wang, Ke-Qin Feng, Lin Xiang
Summary: Coatings with different content of Zn element were successfully formed on Ti6Al4V substrates by micro-arc oxidation (MAO) to enhance the bioactivity and antibacterial activity of titanium alloys. The microstructure and composition of the coatings were characterized, and their bioactive and antibacterial activities were evaluated. The results showed that increasing Zn2+ concentration in the electrolyte resulted in changes in the properties and composition of the coatings, including thickness, surface roughness, porosity, and crystalline phases. The Zn-doped coatings improved cell viability and exhibited antibacterial activity.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Shengjie Wang, Lu Deng, You Lv, Tong Zhang, Xinxin Zhang, Zehua Dong, Guangyi Cai
Summary: Incorporating copper into the surface layer of metallic titanium substrate is an effective method to enhance its antifouling ability. In this study, a Cu-modified TiO2 coating was produced on metallic Ti through micro-arc oxidation (MAO) process using an aqueous electrolyte containing Na2Cu-EDTA. The concentration of Na2Cu-EDTA affects the microstructure, corrosion resistance, and antifouling capability of the Cu-modified TiO2 coatings.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)