Article
Chemistry, Physical
Neetu Bansal, Anandita Arora, Satwinder Singh Danewalia, K. Singh
Summary: The study synthesized calcium and magnesium fluoride-containing borosilicate glass matrix composites and characterized them using various techniques. The heat-treated samples showed good performance in in-vitro bioactivity tests, with improved bioactivity observed with increased ageing time.
Article
Materials Science, Textiles
Armaghan Naderi, Genevieve Palardy
Summary: Polymeric biomaterials, such as PEEK and cellulose, have shown promise as scaffolds for bone tissue engineering. This study investigated the microstructure and mechanical behavior of HA-coated meshes, fabrics, and mats. The results demonstrated potential stability and improved mechanical properties for HA-coated cellulose mats and PEEK meshes, making them suitable for implant applications and bone regeneration.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Materials Science, Ceramics
Cuilian Wen, Nuonan Bai, Lijin Luo, Jianxia Ye, Xuan Zhan, Yinggan Zhang, Baisheng Sa
Summary: Silicate bioglass is essential in bone engineering for its bioactivity and osteogenic effects. The study synthesized hydroxyapatite-like bioactive glass based on the xSiO2-CaO-P2O5 system and investigated its structural evolution, apatite-forming ability, and cytotoxicity. Higher heat treatment temperature and lower SiO2 content increase crystallinity tendency and sample compactness, with 30Si sample showing remarkable mesoporous structures and high specific surface area, demonstrating excellent hydroxyapatite formation and no inhibitory effect on hPDLCs.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Elizaveta P. Simonenko, Nikolay P. Simonenko, Eugeniy K. Papynov, Oleg O. Shichalin, Anton A. Belov, Ilya A. Nagornov, Philipp Yu Gorobtsov, Nikolay T. Kuznetsov
Summary: The potentials of producing ceramic materials Ta4HfC5 and Ta4HfC5-30 vol% SiC at relatively low temperatures (1700 and 1800 degrees C) were studied through reactive spark plasma sintering of highly dispersed powders Ta2O5-HfO2-C and Ta2O5HfO2-C-SiC. The introduction of silicon carbide not only stimulated the consolidation process and the formation of a solid solution with Ta4HfC5 composition, but also increased the oxidation resistance of the carbide ceramics. Oxidation resistance of the obtained ceramic materials was evaluated by thermal analysis and exposure to laser radiation in atmospheric air.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Paper & Wood
Andrey Zdravkov, Maria Listratenko, Stanislav Gorbachev, Iraida Osovskaya, Andrey Kanaev, Nikolai Khimich
Summary: Cellulose is used as a template agent to structure anatase TiO2 particles, forming MCC-TiO2 composite photocatalyst with organic-inorganic structures preserved. Materials prepared in caproic acid solvent showed higher photocatalytic activity, explained by the complementary nature of organic and inorganic components.
Article
Nanoscience & Nanotechnology
Armaghan Naderi, Bin Zhang, Jorge A. Belgodere, Kaushik Sunder, Genevieve Palardy
Summary: Hydroxyapatite (HA)-coated metals show potential for bone replacement and regeneration. This study designed biocompatible composite implants using a metal mesh substrate and HA coating. Experiments showed different coating methods, substrate materials, and mesh characteristics affected implant performance, but had no impact on HA coating crystal structure or shape.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
M. M. Rahman, N. Hasan, M. A. Hoque, M. B. Hossen, M. Arifuzzaman
Summary: In this study, a series of nanocrystalline materials were synthesized using the sol-gel auto combustion technique, and the substitution effect of the Al3+ content on the structural, morphological, dielectric, and electrical properties of the nanoparticles was analyzed. The study found that the synthesized nanoparticles had a high crystalline nature and homogeneity. The contribution of grains and grain boundaries to the material properties was resolved, and the variation of AC resistivity with frequency was explained by the hopping mechanism.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Chemical
Jan Mrazek, Sandip Bysakh, Roman Skala, Ales Mracek, Anirban Dhar, Ivo Barton, Ivan Kasik
Summary: A versatile sol-gel approach is presented for the synthesis of nanocrystalline (Eu0.5Y0.5)(2)Ti2O7. The crystallization kinetics, nucleation mechanism, and crystal structure were studied. The results showed a regular distribution of Eu3+ and Y3+ ions and provided key information for tailoring the structural properties of nanocrystalline powders for photonic applications.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Sherif Elbasuney, Ibrahim Naeem, Mohamed Mokhtar, Mohamed Sheashea, Mahmoud Zorainy, Gharieb S. El-Sayyad, Mohamed Gobara
Summary: A novel Cr-substituted hydroxyapatite (Cr-HA) nanoparticles were synthesized using continuous hydrothermal technique. The synthesized material was embedded into a silica sol-gel matrix and applied on an AA2024 substrate to evaluate its corrosion inhibition efficiency. The results showed the formation of Cr-HA nanorods with a uniform distribution of Ca and Cr ions within the crystal structure. The Cr-HA sol-gel coating exhibited prolonged pitting resistance and self-healing properties in a corrosive media.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
E. K. Papynov, O. O. Shichalin, V. I. Apanasevich, N. G. Plekhova, I. Yu Buravlev, S. V. Zinoviev, V. Yu Mayorov, A. N. Fedorets, E. B. Merkulov, D. Kh Shlyk, V. A. Nepomnyushchaya, Z. E. Kornakova, I. S. Afonin, I. O. Evdokimov, O. V. Korshunova
Summary: This article describes an original sol-gel method for synthesizing dispersed nanostructured wollastonite and its composite with hydroxyapatite, as well as functionalized form with gold nanoparticles. Various analytical methods were used to study the structure and morphology of the samples, as well as the functional activity of immune cells in contact with the materials. This study provides valuable insights into the biocompatibility and quality evaluation of biomaterials used in bone grafting.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
A. Rodrigues, B. Sena da Fonseca, A. P. Ferreira Pinto, S. Picarra, M. F. Montemor
Summary: This study prepared novel composite materials for the repair of damaged stone in built heritage using nano-sized hydroxyapatite and tetraethoxysilane. The composite materials showed superior potential compared to reference materials.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Jan Mrazek, Sona Kamradkova, Jiri Bursik, Roman Skala, Ivo Barton, Petr Varak, Yauhen Baravets, Ondrej Podrazky
Summary: We propose a sol-gel approach to produce low-phonon nanocrystalline (HoxY1-x)(2)Ti2O7, x = <0.01, 0.40>, which exhibits luminescence in the spectral range of 2000-3000 nm. The nanocrystalline structure and the impact of composition and phonon energy on luminescence properties were investigated. Ho3+ ions were found to be distributed regularly within the pyrochlore crystal lattice, resulting in an increase in the unit cell parameter. The maximum luminescence intensity at 2025 nm was observed for the composition (Ho0.03Y0.96)(2)Ti2O7. With an increasing content of Ho3+ ions, the radiative lifetime at 2025 nm regularly decreased from 6.32 to 0.22 ms. The samples had a phonon energy smaller than 700 cm(-1), allowing for an extended luminescence spectral range up to 2900 nm. Further optimization of the chemical composition can enhance the emission at 2860 nm, making it a promising thermally and chemically stable alternative to conventional fluoride or chalcogenide glasses.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Crystallography
Feng Wang, Di Li, Yaoqi Gu, Shuya Wei
Summary: In this study, a continuous hydroxyapatite coating on dolomitic marble was successfully prepared using graphene enhanced Ca(OH)(2) nanoparticles as the calcium precursor via the sol-gel method. The morphology and structure of the film were evaluated through various analytical techniques, and the chromatic aberration, hydrophilicity, reliability, and durability of the coating were assessed. The integrity and efficiency of the hydroxyapatite film were improved by compositing with graphene quantum dots.
Article
Materials Science, Ceramics
Masoud Ebrahimi, Sahebali Manafi, Fariborz Sharifianjazi
Summary: In this study, bioactive glasses (BGs) in the 60SiO2-26CaO-4P2O5-5SrO-xMgO-(5-x)Ag2O systems (x = 0-5 mol.%) were prepared using the sol-gel method. The influence of Ag and Mg dopants on apatite formation, antibacterial properties, and cell viability were investigated. Morphological and structural evaluations were conducted using scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, and Fourier transform infrared spectroscopy (FTIR). The results showed that the BG-A2M3 sample (2 mol% Ag2O and 3 mol% MgO) exhibited the highest apatite-forming ability. The presence of Ag demonstrated antibacterial properties, while the synthesized BGs showed biocompatibility. BG-A2M3 was selected as the optimized sample with excellent biocompatibility and optimal antibacterial and bioactive properties, making it suitable for dental and orthopedic applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Negar Azizabadi, Parviz Aberoomand Azar, Mohammad Saber Tehrani, Pirouz Derakhshi
Summary: In this study, bioactive glass with zinc and silver content was synthesized via the sol-gel route. The results showed that the samples with higher zinc and silver content exhibited better bioactivity, antibacterial properties, and formation of hydroxyapatite. Among all the specimens, the sample BG-A2Z3 demonstrated optimal properties and is considered the most suitable candidate for orthopedic applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(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)
