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Osseointegration of 3D-Printable Polyetheretherketone-Magnesium Phosphate Bioactive Composites for Craniofacial and Orthopedic Implants.
ACS Biomater Sci Eng
January 2025
Department of Mechanical Engineering, Cleveland State University, Cleveland, Ohio 44115, United States.
Polyetheretherketone (PEEK) is a high-performance polymer material for developing varying orthopedic, spine, cranial, maxillofacial, and dental implants. Despite their commendable mechanical properties and biocompatibility, the major limitation of PEEK implants is their low affinity to osseointegrate with the neighboring bone. Over the last two decades, several efforts have been made to incorporate bioactive components such as bioceramic particles in PEEK to enhance its osseointegration capacity.
View Article and Find Full Text PDFUltrafast Preparation of High-Entropy NASICON Cathode Enables Stabilized Multielectron Redox and Wide-Temperature (-50-60 °C) Workability in Sodium-Ion Batteries.
Adv Mater
January 2025
MOE Key Laboratory for UV Light-Emitting Materials and Technology, Department of Physics, Northeast Normal University, Changchun, 130024, P. R. China.
Avoiding severe structural distortion, irreversible phase transition, and realizing the stabilized multielectron redox are vital for promoting the development of high-performance NASICON-type cathode materials for sodium-ion batteries (SIBs). Herein, a high-entropy NaVFeTiMnCr(PO) (HE-NaTMP) cathode material is prepared by ultrafast high-temperature shock, which inhibits the possibility of phase separation and achieves reversible and stable multielectron transfer of 2.4/2.
View Article and Find Full Text PDFAmmonia electrosynthesis from nitrate using a stable amorphous/crystalline dual-phase Cu catalyst.
Nat Commun
January 2025
State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
Renewable energy-driven electrocatalytic nitrate reduction reaction presents a low-carbon and sustainable route for ammonia synthesis under mild conditions. Yet, the practical application of this process is currently hindered by unsatisfactory electrocatalytic activity and long-term stability. Herein we achieve high-rate ammonia electrosynthesis using a stable amorphous/crystalline dual-phase Cu catalyst.
View Article and Find Full Text PDFNonalloyed α-phase formamidinium lead triiodide solar cells through iodine intercalation.
Science
January 2025
Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, School of Materials Science and Engineering, Peking University, Beijing, P. R. China.
Formamidinium lead triiodide (FAPbI) is considered the most promising composition for high-performing single-junction solar cells. However, nonalloyed α-FAPbI is metastable with respect to the photoinactive δ-phase. We have developed a kinetic modulation strategy to fabricate high-quality and stable nonalloyed α-FAPbI films, assisted by cogenetic volatile iodine intercalation and decalation.
View Article and Find Full Text PDFWeTICA: A directed search weighted ensemble based enhanced sampling method to estimate rare event kinetics in a reduced dimensional space.
J Chem Phys
January 2025
Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700106, India.
Estimating rare event kinetics from molecular dynamics simulations is a non-trivial task despite the great advances in enhanced sampling methods. Weighted Ensemble (WE) simulation, a special class of enhanced sampling techniques, offers a way to directly calculate kinetic rate constants from biased trajectories without the need to modify the underlying energy landscape using bias potentials. Conventional WE algorithms use different binning schemes to partition the collective variable (CV) space separating the two metastable states of interest.
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