Russian Journal of Non-Ferrous Metals, Год журнала: 2024, Номер 65(3), С. 142 - 150
Опубликована: Июнь 1, 2024
Язык: Английский
Energy, Год журнала: 2024, Номер 308, С. 132917 - 132917
Опубликована: Авг. 20, 2024
Язык: Английский
Процитировано
5
Scientia Sinica Technologica, Год журнала: 2025, Номер unknown
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
JOM, Год журнала: 2025, Номер unknown
Опубликована: Апрель 11, 2025
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2025
The rapid corrosion rate of biodegradable Magnesium (Mg) implants in physiological environments compromises their mechanical integrity and inhibit bone healing. To improve the magnesium alloy AZ31's resistance bioactivity, this study applies bi-layered coatings hydroxyapatite (HA) beta-tricalcium phosphate (β-TCP). high-velocity oxygen fuel (HVOF) spraying technique has developed HA/TCP with superior adhesion, low porosity, high density. These form a protective barrier against simulated body fluid (SBF), significantly enhancing resistance. on AZ31 substrates, thickness 42.6 µm crystallinity (>70%), reduced current density (Icorr) from 174.03 µA/cm2 to 30.25 µA/cm2, decreasing 3.98 mm/year 0.69 mm/year. According EIS testing, coated sample's charge transfer (Rct) increased 147.47 Ω·cm2 1539.38 Ω·cm2. SEM EDS analysis revealed that after ten days immersion, there was reduction Ca/P ratio 1.51 1.27, indicating dissolution coating. examination confirmed formation an apatite layer, which validated surface bioactivity. results suggest substantially Mg implants' activity biodegradation capabilities, making them promising candidates for advanced biomedical applications.
Язык: Английский
Процитировано
0
Biomimetics, Год журнала: 2025, Номер 10(2), С. 108 - 108
Опубликована: Фев. 12, 2025
Chronic wounds pose a significant healthcare challenge due to their risk of severe complications, necessitating effective management strategies. Bioresorbable materials have emerged as an innovative solution, offering advantages such eliminating the need for secondary surgical removal, reducing infection risks, and enabling time-delayed drug delivery. This review examines recent advancements in bioresorbable wound healing materials, focusing on systematic systems incorporating electrical stimulation, delivery technologies accelerate tissue repair. The discussion encompasses fundamental principles including resorption mechanisms key properties, alongside preclinical applications that demonstrate practical potential. Critical challenges impeding widespread adoption are addressed, prospects integrating these cutting-edge into clinical practice outlined. Together, insights underscore promise revolutionizing chronic care.
Язык: Английский
Процитировано
0
Bioactive Materials, Год журнала: 2025, Номер 48, С. 370 - 399
Опубликована: Фев. 22, 2025
Язык: Английский
Процитировано
0
Journal of the Korean Physical Society, Год журнала: 2024, Номер unknown
Опубликована: Дек. 6, 2024
Язык: Английский
Процитировано
2
Materials, Год журнала: 2024, Номер 17(21), С. 5336 - 5336
Опубликована: Окт. 31, 2024
Magnesium-based materials are an interesting solution in terms of medical applications. Alloys that hard to obtain via standard means may be manufactured mechanical alloying (MA), which allows the production with complex a chemical composition and non-equilibrium structures. This work aimed investigate obtained by MA process for 5, 8, 13, 20 h their phase changes during heating. The results thermal XRD analysis were temperature range between 25 360 °C, revealed MgZn2, PrZn11, Ca2Mg5Zn13, Ca phases as well α-Mg α-Zn solid solution. structural features powder morphology analyzed samples, showing cold-welding fracturing processes leading homogenization, is supported EDS results. base Mg-Zn-Ca alloy was modified different additions, but thorough influence praseodymium on its properties has not yet been performed. We chose focus Pr addition because it belongs low-toxicity rare earth metals, essential feature biomaterials. Also, Ca2Mg5Zn13 fully known, there no crystallographic data (hkl). Therefore, investigation important scientifically justified.
Язык: Английский
Процитировано
0
Journal of Orthopaedic Surgery and Research, Год журнала: 2024, Номер 19(1)
Опубликована: Ноя. 28, 2024
Abstract Background Titanium plantar plates have proven successful in the fixation of first tarsometatarsal arthrodesis (TMT). However, a second surgery is typically needed for implant removal, and potential adverse effects, carried by conventional implantations, are not uncommon. The purpose this study was to determine whether novel magnesium-based plate system provides similar fusion stability titanium-based under various loading conditions. Methods Six matched-pair human cadaveric specimens underwent TMT fusions using either magnesium prototype or titanium system. Specimens were cyclically loaded with force ranging from 5 N 50 5,000 cycles, displacement recorded. Axial stiffness (N/mm) calculated load-displacement curves. Each specimen failure at rate mm/min, ultimate load Results No significant difference found vertical between Ti group Mg after 100 cycles (2.4 ± 1.0 mm vs. 1.3 1.4 mm, p = 0.196), 500 (3.3 1.7 0.142), 1,000 (3.7 1.5 1.9 0.128), 2,500 (4.2 2.3 2.2 0.172) (4.5 1.8 3.3 0.125), Additionally, no differences observed initial (53.1 19.2 N/mm 82.2 53.9 N/mm, 0.257), final (90.6 48.9 120.0 48.3 0.319), maximum load-to-failure (259.8 98.2 323.9 134.9 N, 0.369). Conclusions Based on performed biomechanical testing, mechanical equivalent joint fusion.
Язык: Английский
Процитировано
0
Russian Journal of Non-Ferrous Metals, Год журнала: 2024, Номер 65(3), С. 142 - 150
Опубликована: Июнь 1, 2024
Язык: Английский
Процитировано
0