Article
Biophysics
S. Thanka Rajan, Mitun Das, A. Arockiarajan
Summary: The study demonstrates that the development of niobium and niobium oxide thin films on Mg alloys using sputtering technique can improve the corrosion resistance and biocompatibility of the alloys. The thin-film coated Mg alloys exhibited good corrosion resistance and cell proliferation capability.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Chemistry, Physical
S. Thanka Rajan, Mitun Das, A. Arockiarajan
Summary: In this study, tantalum oxide thin films were deposited onto the surface of AZ31B alloy using the sputtering process, and their biocompatibility and corrosion resistance were evaluated. The results showed that the Ta-based thin films significantly enhanced the corrosion resistance of the magnesium alloy, exhibited good bioactivity, and had good hemocompatibility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Guowei Wang, Dan Song, Yanxin Qiao, Jiangbo Cheng, Huan Liu, Jinghua Jiang, Aibin Ma, Xiaolong Ma
Summary: A one-step hydrothermal processing using a stearic-acid-based precursor medium was developed to produce super-hydrophobic and corrosion-resistant coatings for magnesium-lithium alloys. The coatings were formed through hydrothermal conversion and the concurrent formation of low surface energy materials. The obtained coating exhibited super-hydrophobicity and excellent corrosion resistance due to the multiscale microstructures and through-thickness stearates.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Metallurgy & Metallurgical Engineering
Lingchuang Bai, Yahui Wang, Lan Chen, Jun Wang, Jingan Li, Shijie Zhu, Liguo Wang, Shaokang Guan
Summary: A functional coating was constructed to improve the corrosion resistance and biocompatibility of biodegradable magnesium alloy stents. The coating exhibited moderate surface hydrophilicity and enhanced corrosion resistance, and it promoted the adhesion, proliferation, and migration of endothelial cells while alleviating intimal hyperplasia.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Xing Han, Jia Hu, Yong-Qin Wang, Tian-Bing Xiao, Wei Xia, Yan-Ning Chen, Liang Wu
Summary: A super-hydrophobic anti-corrosion film was prepared by in situ growth of LDHs on AZ31 magnesium alloy and modification with PFOTMS, providing better corrosion resistance. The micro/nano hierarchical surface morphology and optimal hydrophobicity of the film contribute to a high contact angle, which remains above 140 degrees even after immersion in NaCl solution for 6 days.
FRONTIERS IN MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Longjie Lai, Heng Wu, Guobing Mao, Zhengdao Li, Li Zhang, Qi Liu
Summary: In this study, a hydrophobic two-dimensional TiO2/MoS2 nanocomposite coating was fabricated on AZ31B magnesium alloy using an electrophoretic deposition method. The modified TiO2/MoS2 coating showed excellent corrosion resistance after changing from hydrophilic to hydrophobic.
Article
Chemistry, Applied
Tianlu Li, Fengdong Sun, Yun Zhao, Minfang Chen
Summary: In this study, a two-step treatment involving SiO2 gel and hexadecyltrimethoxysilane was used to modify PEO coatings on AZ91 alloy. The treatment effectively sealed the microholes in the PEO coating, resulting in a dense coating with improved hydrophobicity. The corrosion resistance of the substrate alloy was significantly enhanced, making it a promising approach for post-treatment of PEO coatings.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Multidisciplinary
Xiaofeng Wan, Yi Li, Chuang Tian, Jingling Zhou, Shuangqing Qian, Li Wang
Summary: This study fabricated super-hydrophobic microstructures on the surface of AZ91 magnesium alloy using laser-chemical composite etching and stearic acid modification. The resulting structure demonstrated excellent super-hydrophobicity and low adhesion, effectively preventing water droplets and contaminants from adhering to the surface.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Metallurgy & Metallurgical Engineering
Xue-Jun Cui, Chuang-Ming Ning, Guang-An Zhang, Lun-Lin Shang, Li-Ping Zhong, Ying-Jun Zhang
Summary: By modifying a MAO/DLC coating with PDMS, the hardness of the coating decreased, improving its lubrication and corrosion resistance properties. The PDMS modification also resulted in a denser, hydrophobic coating with higher bond strength and better resistance to friction.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Lingchuang Bai, Yahui Wang, Jia Xie, Yuan Zhao, Shaokang Guan
Summary: Biodegradable magnesium alloy stents have great potential in treating cardiovascular diseases. However, surface modifications are needed to improve the corrosion resistance and biocompatibility. In this study, a fucoidan-based coating was developed to enhance the performance of magnesium alloy stents, including corrosion resistance, hemocompatibility, and endothelialization.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Yu-Jui Lin, Chao-Sung Lin
Summary: The corrosion behavior and corrosion rate of friction stir welded AZ31B magnesium alloy and 6N01 aluminum alloy dissimilar joints were studied using real-time imaging, potentiodynamic polarization, EIS, and hydrogen evolution tests. The corrosion rate was found to increase in the order of Al base metal < Mg base metal < stirred zone. The galvanic coupling of the Mg phase to other phases enhanced the corrosion of both base metals, and intense corrosion at BM-AZ31B elevated the interfacial pH due to water reduction on the cathodic particles of BM-6N01.
Article
Materials Science, Multidisciplinary
Ba Zhixin, Kuang Juan, Ding Yuping, Zhao Fei, Zhang Lingling, Wang Yongmin
Summary: Super-hydrophobic coating was fabricated on the surface of ZK60 magnesium alloy coated with layered double hydroxides (LDHs) film to enhance the corrosion resistance of magnesium alloys. The working current density significantly affects the microstructure of the LDHs films, which in turn affects the hydrophobicity of the super-hydrophobic coatings. The optimized working current density of 25 mA/cm(2) resulted in a homogeneous micronano structure and excellent super-hydrophobicity of the coatings. Additionally, the corrosion current density of the super-hydrophobic coating was two orders of magnitude lower than that of the ZK60 substrate, demonstrating excellent corrosion resistance.
RARE METAL MATERIALS AND ENGINEERING
(2022)
Article
Materials Science, Biomaterials
Xiaolong Shen, Hao Zhang, Xin Li, Peichuang Li, Yuancong Zhao, Yunbing Wang, Jin Wang
Summary: In this study, a hydrophobic layer was constructed on pure magnesium to improve the biocompatibility and anti-corrosion ability of magnesium-based stent. The results showed that the hydrophobic layer technique is a promising method for surface modification of biomedical magnesium-based stents.
REGENERATIVE BIOMATERIALS
(2022)
Article
Materials Science, Coatings & Films
Jiyuan Zhu, Chenxi Jia
Summary: This study presents a simple, efficient, and environmentally-friendly method for preparing high-performance corrosion-resistant films on magnesium alloy. The prepared films have a dense bottom layer and a porous upper layer, exhibiting excellent corrosion resistance and stable hydrophobicity.
SURFACE ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Iryna Kozina, Halina Krawiec, Maria Starowicz, Magdalena Kawalec
Summary: Spin coating technique was used to deposit chitosan coatings on the surface of Mg20Zn magnesium alloy, resulting in increased corrosion resistance by forming CaSiO3 and Ca-3(PO4)(2) compounds on its surface. Corrosion rate was reduced from 3.2 mm/year to 1.2 mm/year for uncoated and coated substrates, respectively.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Materials Science, Biomaterials
Mohammadreza Kasravi, Alireza Yaghoobi, Tahereh Tayebi, Mahsa Hojabri, Abdolkarim Talebi Taheri, Fatemeh Shirzad, Bahram Jambar Nooshin, Radman Mazloomnejad, Armin Ahmadi, Fatemeh A. Tehrani, Ghasem Yazdanpanah, Mohammad Hadi Farjoo, Hassan Niknejad
Summary: As a promising approach in translational medicine, the decellularization of discarded livers to produce bioscaffolds that support recellularization has potential in overcoming the limitations of conventional liver transplantation. In this study, the researchers investigated the use of matrix metalloproteinase (MMP) inhibition to preserve the extracellular matrix (ECM) during liver decellularization. The results demonstrated that the application of an MMP inhibitor significantly improved the preservation of ECM components and mechanical properties of the bioscaffolds, which supported cell viability and function in vitro. The study also confirmed that the MMP inhibition led to the inhibition of MMP2 and MMP9, providing a novel method to enhance ECM preservation during liver decellularization.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Mohammadsadegh Nadimifar, Weiguang Jin, Clara Coll-Satue, Gizem Bor, Paul Joseph Kempen, Ali Akbar Moosavi-Movahedi, Leticia Hosta-Rigau
Summary: This study presents a metal-phenolic self-assembly approach that can prepare nanoparticles fully made of hemoglobin. The nanoparticles exhibit good oxygen binding and releasing capabilities.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jyoti Kumari, Roel Hammink, Jochem Baaij, Frank A. D. T. G. Wagener, Paul H. J. Kouwer
Summary: Fibrosis is the formation of fibrous connective tissue in response to injury, leading to organ dysfunction. A novel hybrid hydrogel combining synthetic polyisocyanide with hyaluronic acid has been developed, showing strong antifibrotic properties.
BIOMATERIALS ADVANCES
(2024)
Letter
Materials Science, Biomaterials
Melissa Machado Rodrigues, Cristian Padilha Fontoura, Charlene Silvestrin Celi Garcia, Sandro Tomaz Martins, Joao Antonio Pegas Henriques, Carlos Alejandro Figueroa, Mariana Roesch Ely, Cesar Aguzzoli
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jessica Polak, David Sachs, Nino Scherrer, Adrian Suess, Huan Liu, Mitchell Levesque, Sabine Werner, Edoardo Mazza, Gaetana Restivo, Mirko Meboldt, Costanza Giampietro
Summary: Human skin equivalents (HSEs) play a crucial role in tissue engineering. This study introduces a 3D-printed culture insert to apply a static radial constraint on HSEs and examines its effects on tissue characteristics. The results show that the diameter of the culture insert significantly influences tissue contraction, fibroblast and matrix organization, keratinocyte differentiation, epidermal stratification, and basement membrane formation. This study provides important insights for the design of skin tissue engineering.
BIOMATERIALS ADVANCES
(2024)
Review
Materials Science, Biomaterials
Shiliang Chen, Tianming Du, Hanbing Zhang, Jing Qi, Yanping Zhang, Yongliang Mu, Aike Qiao
Summary: This paper reviewed the primary methods for improving the overall properties of biodegradable zinc stents. It discussed the mechanical properties, degradation behavior, and biocompatibility of various improvement strategies. Alloying was found to be the most common, simple, and effective method for improving mechanical properties. Deformation processing and surface modification further improved the mechanical properties and biological activity of zinc alloys. Meanwhile, structural design could endow stents with special properties. Manufacturing zinc alloys with excellent properties and exploring their interaction mechanism with the human body are areas for future research.
BIOMATERIALS ADVANCES
(2024)