Article
Chemistry, Physical
ChangBo Yi, YiXiang Yuan, Lei Zhang, YeHua Jiang, ZhengYuan He
Summary: This study investigated the density, microstructure, mechanical properties, and antibacterial properties of Ti-35Nb-7Zr-xCu alloys, as well as the influence of Cu element on these properties. The results showed that the Ti-35Nb-7Zr-10Cu alloy with 10 wt% Cu exhibited the best combination of mechanical and antibacterial properties, making it suitable for human hard tissue replacements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Metallurgy & Metallurgical Engineering
Kwang-Hee Cheon, Cheonil Park, Min-Ho Kang, Suhyung Park, Jinyoung Kim, Seol-Ha Jeong, Hyoun-Ee Kim, Hyun-Do Jung, Tae-Sik Jang
Summary: The combination of PEI coating and Ta ion implantation effectively improves vascular compatibility and prevents in-stent restenosis and thrombosis by enhancing endothelial cell adhesion/proliferation and suppressing platelet adhesion/activation. This innovative approach provides a solution to the rapid corrosion and poor vascular compatibility issues faced by biodegradable magnesium stents.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Chemistry, Physical
Pedram Sotoudeh Bagha, Carlo Paternoster, Mehrdad Khakbiz, Saeed Sheibani, Navid Gholami, Diego Mantovani
Summary: Fe-Mn-based alloys have gained attention for their tunable mechanical properties and degradation behavior suitable for biomedical applications. However, their corrosion rate is often too low for cardiovascular device applications. In this study, a resorbable bimodal multi-phase alloy was designed to accelerate the corrosion rate, but concerns of toxicity arose. Surface modification with nitrogen plasma immersion ion implantation was used to control the corrosion rate and improve cell viability.
Article
Materials Science, Coatings & Films
Heng He, Ke Li, Wei Luo, Zhengyuan Jiao, Fanrong Ai, Kui Zhou, Chuanliang Cao
Summary: This article investigates the preparation and performance of Ca-P pre-coating and polycaprolactone (PCL) composite coating on magnesium alloy substrate. The Ca-P pre-coating enhances the bonding strength of the PCL coating with the alloy substrate, preventing peeling and loss. Nanoparticles in the composite coating play important roles in increasing surface roughness, controlling matrix degradation rate, and improving antibacterial properties.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Haifeng Zhang, Jiajun Qiu, Xuanyong Liu
Summary: By modifying the titanium surface with cerium using plasma immersion ion implantation technology, the surface hardness and corrosion resistance of the modified titanium are significantly improved while reducing the level of reactive oxygen species. This modification enhances cell adhesion, proliferation, osteogenesis, and collagen secretion on the surface of the modified titanium.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Biomedical
Lanyu Wang, Qiming Luo, Xianming Zhang, Jiajun Qiu, Shi Qian, Xuanyong Liu
Summary: The introduction of magnesium and zinc into titanium through plasma immersed ion implantation technology has been shown to influence the behavior of human gingival fibroblasts (HGFs), affecting their adhesion, migration, and proliferation capabilities crucial for soft tissue sealing around implants.
BIOACTIVE MATERIALS
(2021)
Article
Biophysics
Juergen Schmidt, Iulian Pana, Anna Bystrova, Mihaela Dinu, Yuri Dekhtyar, Catalin Vitelaru, Marks Gorohovs, Ioana Maria Marinescu, Pinar Yilgor Huri, Dilara Goksu Tamay, Gabriela Andreea Juravlea, Senem Buyuksungur, Anca Constantina Parau, Vasif Hasirci, Nesrin Hasirci, Alina Vladescu
Summary: The purpose of this study was to investigate the effect of Zn doped CaP coatings prepared by micro-arc oxidation method on MgCa1 alloy degradation. The results showed that the addition of Zn into CaP increased the corrosion resistance of MgCa1 alloy and enhanced the adhesion strength of the coatings. All samples exhibited cytocompatibility and the degradation rate of MgCa1 alloy in simulated body fluids (SBF) or DMEM was decreased by coating with CaP, which was further reduced by adding a small amount of Zn. The samples with CaP coatings and Zn doped CaP coating also demonstrated antibacterial efficacy against E.coli.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Run Huang, Lei Liu, Bo Li, Liang Qin, Lei Huang, Kelvin W. K. Yeung, Yong Han
Summary: The study demonstrates that ion implantation of Mg and Ag ions onto the NG TLM surface can enhance functions of rBMMSCs and inhibit growth of S. aureus. Compared to the NG surface, co-implantation of Mg and Ag on the NG surface can enhance rBMMSCs functions and inhibit bacterial growth concurrently.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Fei Wei, Yuqing Mu, Richard P. Tan, Steven G. Wise, Marcela M. Bilek, Yinghong Zhou, Yin Xiao
Summary: This study found that immobilizing interleukin 4 (IL4) on plasma immersion ion implantation (PIII)-activated surfaces can modify the osteo-immunoregulatory characteristics of barrier membranes for guided tissue regeneration, leading to pro-osteogenic effects. The IL4-immobilized PIII surfaces polarized macrophages to an M2 phenotype and reduced inflammatory cytokine production. Additionally, co-culture of macrophages and bone marrow-derived mesenchymal stromal cells on IL4-immobilized PIII surfaces enhanced the production of angiogenic and osteogenic factors, and triggered autophagy activation. The findings demonstrate that PIII-assisted IL4 immobilization can create a favorable osteoimmune environment for bone regeneration.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Liangliang Liu, Tijun Li, Qingdong Ruan, Dan Li, Chao Huang, Xiaolin Zhang, Yinghe Ma, Yuzheng Wu, Zhongcan Wu, Ricky K. Y. Fu, Zhongzhen Wu, Paul K. Chu
Summary: Plasma immersion ion implantation and deposition (PIII&D) is used to introduce high-density crystal defects in CrN coatings to enhance the mechanical properties.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Le Zong, Liujie Xu, Chunyang Luo, Zhou Li, Yunchao Zhao, Zhaoning Xu, Chenhui Zhu, Shizhong Wei
Summary: WMoNbTaV-1ZrO(2) refractory high-entropy alloy was successfully prepared by adding m-ZrO2 particles, which significantly increased the strength and plasticity of the alloy. The high strength was mainly due to the inherent strength in the alloy and grain boundary strengthening caused by the addition of m-ZrO2 particles.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Coatings & Films
Her-Hsiung Huang, Chia-Fei Liu, Shan Wang, Chiang-Sang Chen, Jean-Heng Chang
Summary: Ti6Al7Nb alloy, treated with nitrogen plasma immersion ion implantation (N-PIII), formed a TiN-containing film on the surface which improved properties such as surface roughness, hydrophilicity, hardness, corrosion resistance, protein adsorption, and cell response. In vivo implantation studies showed that the N-PIII treated implants with higher TiN content had better initial bone-implant contact after two weeks, suggesting enhanced performance of Ti6Al7Nb alloy with N-PIII treatment.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
K. Lau, C. Heu, M. J. Moore, A. Zhang, B. Akhavan, S. G. Wise, M. M. M. Bilek, M. S. Lord, J. Rnjak-Kovacina
Summary: This study investigates the potential of plasma immersion ion implantation (PIII)-treated silk biomaterials for biomedical applications. The results show that PIII treatment can alter the surface chemistry of silk, increase surface stiffness, and promote cell adhesion. However, PIII treatment does not significantly affect fibrous encapsulation and macrophage response in vivo.
MATERIALS TODAY ADVANCES
(2022)
Article
Engineering, Environmental
Haifeng Zhang, Jiajun Qiu, Min Xing, Xingdan Liu, Xiaohan Ma, Liping Ouyang, Yuqin Qiao, Wenhao Qian, Xuanyong Liu
Summary: This study successfully enhanced the antibacterial activity and tissue integration ability of medical titanium surfaces by applying cerium-based metal-organic framework (Ce-BTC) coatings using hydrogen plasma immersion ion implantation (H-PIII) treatment. The Ce-BTC coatings showed improved adenosine triphosphate (ATP) deprivation capacity, oxidase-like activity, fibroblast response, and antibacterial properties. This research provides a potential solution for implant-associated infections.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Zebin Li, Lianbi Li, Guoqing Zhang, Lixun Song, Zheyan Tu, Chao Han
Summary: The surface of aluminum-doped ZnO (AZO) films was modified using the oxygen plasma immersion ion implantation method (O-PIII). The modified AZO films showed enhanced work function (WF) based on oxygen plasma (O-ICP) treatment, preserving optical characteristics and improving surface morphology. The reduction of oxygen vacancies was responsible for the increased WF. The WF of the modified AZO films decreased rapidly in air following both O-ICP and O-PIII modification, but the O-PIII treatment had a longer-lasting effect.
Review
Engineering, Biomedical
Babak Mehrjou, Yuzheng Wu, Pei Liu, Guomin Wang, Paul K. Chu
Summary: The emergence of antibiotic-resistant pathogens poses serious health issues. There is a global effort to find new methods to treat infections and develop better antibacterial materials and therapies. Non-biological methods and biomimetic patterns show potential for antimicrobial effects. This review summarizes recent advances in the application of chemical and biological approaches to combat bacterial infection and antibiotic resistance.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Guomin Wang, Kaiwei Tang, Wenjuan Jiang, Qing Liao, Yong Li, Pei Liu, Yuzheng Wu, Mengting Liu, Huaiyu Wang, Bin Li, Jianzhong Du, Paul K. Chu
Summary: Adjustable electro-mechanical forces can effectively kill bacteria and adding electrical charges can enhance the antibacterial efficacy.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Xingwang Yan, Xiaolin Zhang, Bin Wang, Ziran Chen, Junze Zhao, Gaopeng Liu, Dan Li, Qingdong Ruan, Liangliang Liu, Yue Xu, Mengxia Ji, Paul K. Chu, Huaming Li, Jiexiang Xia
Summary: Efficient heterojunction photocatalysts with spatial separation of photogenerated carriers are crucial to photo-catalysis. The unique carbonized polymer dots/ZnIn2S4 (CPDs/ZIS) Z-scheme heterojunction is designed to realize efficient spatial directional separation of photogenerated carriers and deliver enhanced photocatalytic performance in pollutant degradation. The CPDs generate more superoxide radicals to facilitate mineralization of organic pollutants and retain more holes for oxidation, while the Z-scheme migration mechanism of photogenerated carriers in the CPDs/ZIS composite preserves the original valence band potential of ZIS.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Yinghe Ma, Peng Wu, Jinhui Mei, Zhen Yu, Jianguo Yang, Yanming He, Huaxin Li, Chuanyang Lv, Sendong Ren, Jianping Xu, Zhihui Cai, Paul K. Chu
Summary: Micro-arc oxidation (MAO) was used to treat Ti-6Al-4V electron-beam-welded joints, and the effects on microstructure, phase composition, and corrosion resistance of the joint and surface coating were studied. The MAO treatment resulted in a phase transformation in the joint and a denser and thicker coating. The XRD analysis confirmed the presence of rutile and anatase phases in the coating. The corrosion tests showed a significant decrease in corrosion current density and an improvement in corrosion resistance due to the MAO treatment. Long-term exposure to a high-stress corrosion environment also revealed the formation of a protective layer on the joint.
Article
Chemistry, Physical
Ning Pang, Xin Tong, Yunzhe Zheng, Yang Zhou, Qingdong Ruan, Dajun Wu, Rong Huang, Dayuan Xiong, Shaohui Xu, Lianwei Wang, Paul K. Chu
Summary: The construction of heterostructures using atomic layer deposition and high-energy metal plasma implantation has a significant impact on the catalytic activity of cobalt oxide in the oxygen evolution reaction (OER). Among different metals, the heterostructure constructed with cobalt oxide and zirconium metal exhibits better OER activity than silver, titanium, and chromium metals. Increasing the number of zirconium atoms and the thickness of the cobalt oxide layer initially enhances the OER activity and then gradually decreases it. The Zr500/12CoO metal-semiconductor heterojunction has a higher barrier height and more electron-hole pairs, leading to a more positively charged metal surface and promoting the adsorption of OH-. The construction of metal-semiconductor heterojunctions provides insights into the design and surface-interface modification of efficient, low-cost, and durable electrodes for water splitting applications.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Engineering, Biomedical
Yanbin Zhao, Peng He, Junyan Yao, Mei Li, Bin Wang, Linyuan Han, Zhihai Huang, Chao Guo, Jing Bai, Feng Xue, Yu Cong, Weihua Cai, Paul K. Chu, Chenglin Chu
Summary: In this study, a self-healing polymeric coating was constructed on a magnesium alloy for orthopedic implants. The coating incorporated a stimuli-responsive drug delivery nanoparticle platform and showed fast and stable water-enabled self-healing capacity. It also exhibited good antibacterial properties and promoted cell compatibility, osteogenesis, and angiogenesis.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Engineering, Environmental
Zanling Huang, Abebe Reda Woldu, Xiang Peng, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu
Summary: It has been found that adding Fe ions into alkaline electrolytes can enhance the oxygen evolution reaction (OER) activity of Ni-based catalysts. Experimental analysis reveals that Fe(III) can promote OER kinetics through two approaches, leading to improved performance and stability in electrochemical water splitting.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Optics
Ning Sheng, Haihao Fu, Tongyu Meng, Jianxin Wang, Wei Liu, Jingwei Lv, Zao Yi, Lin Yang, Paul K. Chu, Chao Liu
Summary: This paper studies the influence of SiO2 and four new optical materials on the OAM mode characteristics in orbital angular momentum (OAM) photonic crystal fibers (PCFs) for more efficient communication. The properties of OAM modes transmitted in the five materials, such as effective index difference, dispersion, confinement loss, etc., are derived using the finite element method. Universal rules for optimizing PCF in the future to improve the efficiency of optical fiber communication are obtained through in-depth analysis.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2023)
Article
Optics
Guangrong Sun, Qiang Liu, Haiwei Mu, Yudan Sun, Shimiao Wang, Mingzhu Han, Jianxin Wang, Jingwei Lv, Paul K. Chu, Chao Liu
Summary: A novel terahertz anti-resonant fiber is designed with high-resistivity silicon in the fiber and nested double-layer U-shape tubes, which effectively reduce the transmission loss. The fiber's confinement loss and effective material loss are analyzed and optimized using the finite element method. The optimized fiber demonstrates a low total loss of 3.1 x 10-3 dB/m at 1 THz and a low-loss transmission bandwidth of 0.44 THz in the range of 0.5-1.5 THz. Bending analysis shows that the bending loss is less than 2.1 x 10-2 dB/m at 1 THz for bending radii bigger than 60 cm. This anti-resonant fiber exhibits excellent performance and holds high commercial potential in terahertz waveguides.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Physics, Applied
Wei Li, Debao Wang, Tongyu Meng, Wei Zhou, Jingwei Lv, Lin Yang, Wei Liu, Yan Lv, Yu Wang, Paul K. Chu, Chao Liu
Summary: A hybrid metal-dielectric nanoparticle composed of a gold dimer and silicon-silica is designed and analyzed using the finite element method (FEM) to explore the strong coupling between the combined plasmonic mode and anapole mode. Theoretical simulation shows that the nanoparticle achieves an enhanced electric field enhancement of 640 and exhibits unidirectional scattering with almost zero backscattering at multiple wavelengths in the far-field region. Additionally, the composite nanoparticle exhibits a high Purcell factor of 12,193 and sensitivity of 610nm/RIU, surpassing that of single-metal or dielectric nanoparticles.
MODERN PHYSICS LETTERS B
(2023)
Review
Chemistry, Multidisciplinary
Yunlei Zhou, Liting Yin, Shuangfei Xiang, Sheng Yu, Hannah M. Johnson, Shaolei Wang, Junyi Yin, Jie Zhao, Yang Luo, Paul K. Chu
Summary: This review provides a comprehensive overview of the synthesis and fabrication strategies employed in the development of MXene-based flexible materials for energy storage applications. The paper analyzes the current state of the field and explores the challenges and research opportunities in this dynamic area.
Article
Electrochemistry
Hanxue Zhao, Mai Li, Jintao Du, Yuhang Lei, Ayesha Irfan, Muhammad Imran, Chunrui Wang, Jun He, Zhongyi Sun, Paul K. Chu
Summary: Porous carbon derived from metal-organic frameworks (MOFs) is synthesized to form a three-dimensional structure of conductive porous carbon nanoflakes (CPCN) with unique structural characteristics and conductivity. Incorporation of nanoscale CdSe particles as energy-storage materials into CPCN results in a flexible electrode for sodium-ion supercapacitors. The CdSe/CPCN@CC electrode exhibits high specific capacitance and excellent cycling stability, making it suitable for flexible and wearable applications.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Biomedical
Jianqiu Yang, Zhenzhen Huang, Jiang Tan, Jingye Pan, Shixuan Chen, Wenbing Wan
Summary: By functionalizing a decellularized pomelo peel with an adhesive hydrogel and antibacterial materials, the hybrid wound dressing can effectively inhibit bacterial infection, promote granulation tissue formation and angiogenesis, and reduce scar formation during wound healing.
BIOACTIVE MATERIALS
(2024)
Article
Engineering, Biomedical
Yong Mei, Xiaohua Qin, Zhenyu Yang, Shiyao Song, Xiaoting Liu, Chong Wu, Jieying Qian, Xiaowan Huang, Yunjiao Zhang, Weiling He
Summary: This article presents a novel nanoparticle for treating KRAS-TP53 co-mutation in gastrointestinal cancers. The nanoparticle can degrade mutant p53 proteins (mutp53) and deliver the drug AMG510 to inhibit mutant KRAS and mutp53 signaling pathways. The results show that the nanoparticle can effectively reduce cell proliferation and migration, and demonstrate remarkable therapeutic efficacy in a tumor-bearing mouse model.
BIOACTIVE MATERIALS
(2024)
