Article
Materials Science, Composites
Fateme Saeedi, Arash Montazeri
Summary: This study focuses on the synthesis of nano-hydroxyapatite/chitosan coatings on a Mg-2 wt% Zn scaffold using the pulse electrodeposition technique. The impact of electrodeposition factors on the coating properties was investigated, and the coatings were characterized using various analysis methods. The results showed that the optimized conditions for the nHA/CS coating were an average current density of 20 mA/cm2, a duty cycle of 0.4, and a coating duration of 60 minutes. The optimized coating exhibited improved corrosion resistance and biocompatibility.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Sadaf Mohandesnezhad, Mohamadreza Etminanfar, Soheil Mahdavi, Mir Saman Safavi
Summary: This study successfully produced a polymer-ceramic layered hybrid coating system containing polypyrrole-hydroxyapatite on the surface of 316L stainless steel through modifying the electrolyte and electrodeposition parameters. The results showed that the coating had higher adhesion strength, corrosion resistance, and promoted appropriate bioactivity.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Coatings & Films
Srikant Tiwari, S. B. Mishra
Summary: Thermal treatment improved the properties of hydroxyapatite coating, with the best performance observed at an annealing temperature of 600 degrees Celsius.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Chen Yang, Zhengjun Yao, Fan Zhang, Moliar Oleksandr
Summary: The study utilized area-selective electrodeposition technique to repair damaged coating areas by specifying the track. Different current density parameters were investigated for their effects on the microstructure and properties of the repaired coating. The results showed that the repaired coating exhibited improved protective performance and corrosion resistance compared to the damaged coating.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Materials Science, Coatings & Films
Zixin Deng, Defu Liu, Yi Xiong, Xiangcheng Zhu, Hangbiao Mi, Jian Liu, Tao Chen
Summary: A novel technique for preparing a higher bioactive ceramic coating with a three-layer gradient structure on medical Ti substrate surface by wide-band laser cladding process has been proposed in this paper. It involves the preparation of a silver barrier layer, a transition layer, and a HA bioactive ceramic layer successively, providing excellent bioactivity and biocompatibility of the coating.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Biomedical
Daniel Nilson Nunes Nicomedes, Laureana Moreira Mota, Rebecca Vasconcellos, Nathanael Vieira Medrado, Michelle de Oliveira, Erika Costa de Alvarenga, Karyne R. C. Juste, Ariete Righi, Sara Matte Manhabosco, Guilherme Jorge Brigolini Silva, Fernando Gabriel S. Araujo, Alan Barros de Oliveira, Ronaldo Junio Campos Batista, Jaqueline dos Santos Soares, Taise Matte Manhabosco
Summary: Talc from soapstone shows promise as a replacement for graphene oxide in reinforcement for hydroxyapatite coatings without compromising properties. The use of electrodeposition on titanium substrate successfully deposited the composite coatings in a low-cost and eco-friendly manner.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Ekaterina S. S. Marchenko, Kirill M. M. Dubovikov, Gulsharat A. A. Baigonakova, Ivan I. I. Gordienko, Alex A. A. Volinsky
Summary: Hydroxyapatite coatings were deposited on NiTi substrates using plasma-assisted radio frequency sputtering for different deposition times. Increase in deposition time to 3 hours resulted in formation of a dense hydroxyapatite layer without visible defects. The coating consisted of round grains of different fractions, with the smallest grains observed in the sample deposited for 3 hours. Wettability tests showed that the coating deposited for 3 hours had the highest surface energy, reflected in the proliferation density of the MCF-7 cell line.
Article
Materials Science, Coatings & Films
Huaizhang Gu, Guofen Zhang, Enpei Cai, Geng Tang, Qibin Liu
Summary: The porous gradient bioceramic coating fabricated via laser cladding process was evaluated for bioactivity and biocompatibility through various tests. Results showed that the 2.5 wt% PFA and 5 wt% PFA coatings exhibited good ability towards mineralization and deposition of bioactive phase components.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Weiwei Yang, Youcai Zhang, Shengyuan Lei, Qiufeng Mo, Kui Ling, Xiaoyu Lv, Xiaolian Zhao, Weizhou Li
Summary: The MoSi2/NbSi2 composite coating was prepared on Nb-based alloys using electrodeposition and halide activated pack cementation (HAPC) process. The composite coating exhibited strong resistance during the hot corrosion process, attributed to the compact SiO2 scale acting as a barrier to diffusion of oxygen and improving the overall corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Anna Mazur-Nowacka, Anna Szczurek, Marek Marczewski, Jacek Checmanowski, Bogdan Szczygiel
Summary: Zirconium dioxide ceramic coatings were applied to the surface of 316L steel using the sol-gel method and then heated at 300 degrees C or 500 degrees C. The purpose of the coatings was to enhance the bioactivity and corrosion resistance of the steel in simulated body fluids. Analysis of the coated samples after 150 days showed increased presence of phosphates on the surface compared to uncoated steel samples. The deposition of ZrO2 coatings also improved the corrosion resistance of the steel in the simulated body fluid solution, as confirmed by electrochemical tests.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Carolina da S. Lopes, Isabel C. Rigoli, Carlos A. D. Rovere, Claudia L. F. da Rocha, Carlos A. C. de Souza
Summary: This study investigates a composite zinc coating containing cotton nanocrystals obtained through electrodeposition. The addition of cotton nanocrystals is found to improve the morphology and surface smoothness of the coating, increase the current efficiency and corrosion resistance, but decrease the hardness of the coating.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Yuxing He, Fuwei Peng, Jinwen Du, Liangfeng Li, Bing Xue, Meng Dong, Pengfei Gao
Summary: A 100 mT magnetic field was applied during plasma spraying of hydroxyapatite (HA) coating on Ti6Al4V substrate. The impact of the magnetic field on microstructure, bonding strength, and bioactivity of the coating was investigated. Compared to the as-sprayed coating, the magnetic field treated coating exhibited reduced porosity, microcracks, and residual stress, as well as significantly improved bonding strength.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Biomaterials
Ali Shanaghi, Babak Mehrjou, Zahra Ahmadian, Ali Reza Souri, Paul K. Chu
Summary: A multi-functional hierarchical coating is deposited on nitrided NiTi alloy, consisting of layers with porous hydroxyapatite, ciprofloxacin, and calcium phosphate. This coating shows improved corrosion resistance, bacterial resistance, and good biocompatibility, making it promising for orthopedic and dental applications.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Materials Science, Coatings & Films
Ana Barbara Batista, Michael Stanley, Ana Carolina Ferreira de Brito, Rebecca Vasconcellos, Michele Munk, Mario Jose-Bueno, Cristina Godoy, Erika Costa de Alvarenga, Claudia Karina Barbosa de Vasconcelos, Ariete Righi, Edesia M. B. de Sousa, Alan Barros de Oliveira, Ronaldo Junio Campos Batista, Jaqueline dos Santos Soares, Bernardo Ruegger Almeida Neves, Ana Paula Moreira Barbosa, Taise Matte Manhabosco
Summary: Nano-talc was successfully incorporated in the hydroxyapatite matrix through an eco-friendly liquid-phase exfoliation process, and it significantly improves the performance of bioceramic materials, including higher stiffness, reduced friction coefficient and wear damage, as well as corrosion resistance and biocompatibility.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Fangxia Xie, Jiabing Huang, Shu Cao, Xueming He
Summary: In this study, Ti-10Mo/HA biocomposites were prepared by powder metallurgy and their electrochemical corrosion behavior and in-vitro bioactivity were investigated. The results showed that the corrosion resistance of the composites decreased with the addition of HA, but the bioactivity significantly improved.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Ruoyu Sheng, Jing Mu, Roman V. Chernozem, Yulia R. Mukhortova, Maria A. Surmeneva, Igor O. Pariy, Tim Ludwig, Sanjay Mathur, Changlu Xu, Roman A. Surmenev, Huinan Hannah Liu
Summary: Piezoelectric materials show promise for biomedical applications due to their ability to provide mechanical or electrical stimulations. Recent studies have demonstrated that doping reduced graphene oxide (rGO) or polyaniline (PANi) into biodegradable polyhydroxybutyrate (PHB) enhances its piezoelectric response. This study aims to determine the correlation between physiochemical properties and the in vitro cell response to PHB-based composite scaffolds with rGO or PANi.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Milad Hosseini, Jafar Khalil-Allafi, Mohamadreza Etminanfar, Mir Saman Safavi, Nora Bloise, Arash Ghalandarzadeh
Summary: This study aimed to enhance the performance of hydroxyapatite-Yttria-stabilized ZrO2 (HAp-YSZ) composite coating on Ti6Al4V implants using plasma electrolyte oxidation (PEO) technique. The concentration of YSZ nanoparticles in the electrolyte was found to influence the final characteristics of the coating. The addition of YSZ nanoparticles resulted in increased microhardness, bonding strength, and corrosion resistance of the composite coating. In vitro tests showed that the coated implants promoted apatite growth, improved cell viability and proliferation, and exhibited antibacterial activity against Escherichia coli.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Nesa Abdian, Mohamadreza Etminanfar, Seyed Omid Reza Sheykholeslami, Hamed Hamishehkar, Jafar Khalil-Allafi
Summary: Chitosan/hydroxyapatite/mesoporous SiO2-HA scaffolds were prepared and studied for drug delivery applications. The addition of mesoporous SiO2-HA particles improved the porous nature of the scaffolds. XRD results confirmed a strong interaction between chitosan and hydroxyapatite in the scaffolds. The introduction of mesoporous SiO2-HA boosted the mechanical and biological performances of the scaffolds.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Materials Science, Multidisciplinary
Roman A. Surmenev, Maria A. Surmeneva
Summary: This review focuses on the recent advancements in flexoelectric materials and strategies for strain engineering to modulate strain gradient and flexoelectric response, with a special emphasis on photovoltaic and related applications. Photodetectors based on flexoelectric materials and structures are discussed, and a brief overview of alternative and emerging applications and challenges is provided. The most important materials for photovoltaic and related applications are suggested to range from low-dimensional and thin-film ferroelectric semiconductors to conducting materials that are not restricted by the Shockley-Queisser limit.
Article
Medicine, General & Internal
Lucia-Camelia Boldeanu, Aurel Popa-Wagner, Marius Boariu, Stefan-Ioan Stratul, Darian Rusu, Octavia Vela, Alexandra Roman, Petra Surlin, Georgios Kardaras, Salvatore Chinnici, Adrian Vaduva
Summary: This study used CLSM to assess tissue breakdown around implants with ligatures and compared it to thin sections in light microscopy. The results showed that CLSM provided comparable information about soft-tissue-bone-implant details compared to traditional light microscopy. CLSM may be demanding, but the rich data acquired justify its use.
JOURNAL OF CLINICAL MEDICINE
(2023)
Review
Infectious Diseases
Iulia C. Micu, Alexandrina Muntean, Alexandra Roman, Stefan I. Stratul, Emoke Pall, Andreea Ciurea, Andrada Soanca, Marius Negucioiu, Lucian Barbu Tudoran, Ada G. Delean
Summary: Periodontitis is a common oral infectious disease caused by the interaction between altered subgingival microbiota and the host's immune-inflammatory response. The goal of periodontal therapy is to eliminate the subgingival biofilm and prevent further tissue breakdown. Adjunctive therapies, including antimicrobials, have been proposed to enhance the effectiveness of mechanical instrumentation. However, these antimicrobials often have side effects and should be used with caution.
Review
Medicine, General & Internal
Andreea Ciurea, Nicolae Voicu Rednic, Andrada Soanca, Iulia Cristina Micu, Alina Stanomir, Diana Onet, Petra Surlin, Ileana Filipescu, Alexandra Roman, Stefan Ioan Stratul, Cristina Pamfil
Summary: Systemic sclerosis is a chronic, autoimmune, multisystemic disease that affects various organs and tissues, leading to skin, lung, and gastrointestinal damage as well as facial changes and dental problems. The oral manifestations of systemic sclerosis are often overlooked in clinical practice and not included in general treatment recommendations. Periodontitis, an inflammatory disease of the gums and supporting structures of the teeth, is associated with autoimmune-mediated systemic diseases, including systemic sclerosis. This review discusses the connection between systemic sclerosis and periodontitis and provides guidance for preventive and therapeutic approaches in managing these patients.
Article
Materials Science, Multidisciplinary
Dmitriy Khrapov, Maria Kozadayeva, Andrey Koptyug, Tatiana Mishurova, Dietmar Meinel, Roman Surmenev, Maria Surmeneva
Summary: Functionally graded porous scaffolds (FGPS) were produced using electron beam powder bed fusion and constructed with spatially continuous structure based on sheet-based gyroid with different scaling factors. X-ray Computed Tomography was used to evaluate the dimensions and porosities of the scaffolds and post-manufacturing treatment by dry ultrasonic vibration was found successful for gyroids with specific scaling factors. Mechanical properties of the samples were evaluated to prove that additional treatment does not cause structural damage.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Seyed Omid Reza Sheykholeslami, Jafar Khalil-Allafi, Mohamadreza Etminanfar
Summary: In this article, mesoporous SiO2/hydroxyapatite (HA) composite particles were produced and co-electrodeposited on Nitinol biomedical alloy. The characterization results showed that the composite coatings exhibited a compact morphology and hydrophobic properties, which significantly improved the corrosion resistance. Furthermore, the composite coatings provided a convenient environment for the growth and proliferation of MG-63 osteoblasts.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Irina Yu Grubova, Maria Kozadaeva, Anastasia P. Volkova, Dmitriy Khrapov, Roman A. Surmenev, Andrey V. Koptyug, Alina Vladescu (Dragomir), Alexander Tyurin, Maria A. Surmeneva
Summary: Pre-alloyed beta-phase Ti-42Nb alloy was successfully produced using E-PBF for the first time. The study determined the processing parameter window and provided the opportunity to design new alloys, extending the scope of additive manufacturing.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
F. Marashi-Najafi, J. Khalil-Allafi, S. Mahdavi
Summary: The use of functionalized nanoparticles in polymer coatings has shown promising potential for enhancing corrosion protection in biomedical applications. By characterizing the morphology, structure, and properties of various coatings, researchers have demonstrated that the inclusion of functionalized nanoparticles can significantly improve the hardness and elastic modulus of the coatings, resulting in excellent corrosion resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Irina Yu. Grubova, Roman A. Surmenev, Erik C. Neyts, Andrey V. Koptyug, Anastasia P. Volkova, Maria A. Surmeneva
Summary: Combined first-principles DFT calculations and experiments were conducted to elucidate the origin of low elasticity in a Ti-based alloy. The results showed that the TNZT alloy has homogeneous mechanical properties and a mixture of strong metallic and weak covalent bonding. The softening of Cauchy pressure and elastic constant C (44) was identified as the cause of the low elasticity.
Article
Chemistry, Physical
Maria Kozadaeva, Maria Surmeneva, Dmitriy Khrapov, Vladimir Rybakov, Roman Surmenev, Andrey Koptyug, Alina Vladescu (Dragomir), Cosmin Mihai Cotrut, Alexander Tyurin, Irina Grubova
Summary: The beta-type Ti-42Nb alloy has been successfully manufactured using the E-PBF method. Thorough microstructural investigations revealed that the alloy primarily consisted of the beta phase with a small amount of nano-sized alpha ''-martensite. The bimodal-grained microstructure exhibited a weak texture and led to improved mechanical properties. Young's modulus, yield strength, and hardness of the alloy meet the criteria for biomedical applications.
Article
Medicine, General & Internal
Ioana Ilyes, Darian Rusu, Viorelia Radulescu, Octavia Vela, Marius Ion Boariu, Alexandra Roman, Petra Surlin, Giorgios Kardaras, Simina Boia, Salvatore Chinnici, Holger Friedrich Rudolf Jentsch, Stefan-Ioan Stratul
Summary: This study evaluated the clinical and microbiological effects of a single subgingival administration of an antibiotic gel, compared with a slow-release doxycycline gel and a placebo gel, in patients with severe periodontitis. The results showed no significant difference in clinical outcomes between the two treatment groups, suggesting that subgingival instrumentation can be performed without adjunctive antimicrobials.
MEDICINA-LITHUANIA
(2023)
Article
Materials Science, Multidisciplinary
Mir Saman Safavi, Jafar Khalil-Allafi, Amir Motallebzadeh, Cristina Volpini, Vida Khalili, Livia Visai
Summary: This study focuses on the development of surface technologies to improve the tribomechanical and biological characteristics of synthetic NiTi implants. The results show that incorporating Nb2O5 particles can lead to a more compact and hydrophilic surface. The composite coatings exhibit higher hardness and elastic modulus, as well as stronger bonding to the underlying material. The Nb2O5-reinforced HAp films have an elastic modulus close to that of cortical bone, reducing the risk of stress-shielding. Additionally, the inclusion of Nb2O5 particles also improves cell functions.
MATERIALS ADVANCES
(2023)