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Microstructure, wear, and corrosion properties of PEEK-based composite coating incorporating titania- and copper-doped mesoporous bioactive glass nanoparticles.
RSC Adv
January 2025
Department of Materials Science and Engineering, Institute of Space Technology Islamabad Pakistan
Poor wear- and corrosion-resistance of 316L SS implants are critical problems in orthopedic implants. This study aims to improve the wear- and corrosion-resistance of 316L SS through surface coating. In this study, a bilayer composite coating consisting of polyether ether ketone (PEEK) as the first layer, and titania (TiO)- and Cu-doped mesoporous bioactive glass nanoparticles (Cu-MBGNs) were deposited as the second layer on a 316L SS electrophoretic deposition (EPD).
View Article and Find Full Text PDFBe bold, start cold! cold formalin fixation of colorectal cancer specimens granted superior DNA and RNA quality for downstream molecular analysis.
Histochem Cell Biol
December 2024
Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy.
The use of cold formalin fixation (CFF; i.e., fixating tissue samples with 4 °C precooled formalin) recently attracted further attention owing to its putative improved ability to preserve nucleic acid compared with standard room temperature formalin (SFF).
View Article and Find Full Text PDFGraphitic Carbon Nitride Structures on Carbon Cloth Containing Ultra- and Nano-Dispersed NiO for Photoactivated Oxygen Evolution.
ChemSusChem
November 2024
Department of Chemical Sciences, Padova University and INSTM, Via Marzolo 1, 35131, Padova, Italy.
The development of low-cost and high-efficiency oxygen evolution reaction (OER) photoelectrocatalysts is a key requirement for H generation via solar-assisted water splitting. In this study, we report on an amenable fabrication route to carbon cloth-supported graphitic carbon nitride (gCN) nanoarchitectures, featuring a modular dispersion of NiO as co-catalyst. The synergistic interaction between gCN and NiO, along with the tailoring of their size and spatial distribution, yield very attractive OER performances and durability in freshwater splitting, of great significance for practical end-uses.
View Article and Find Full Text PDFGraphitic Carbon Nitride as a Promising Visible-Light-Activated Support Boosting Platinum Nanoparticle Activity in Ethanol Electrooxidation.
ChemSusChem
October 2024
Department of Chemical Sciences, Padova University and INSTM, Via Marzolo 1, 35131, Padova, Italy.
In the present work, exfoliated graphitic carbon nitride (g-CN) is immobilized on carbon paper substrates by a simple electrophoretic route, and subsequently decorated with ultra-low amounts (≈μg/cm) of Pt nanoparticles (NPs) by cold plasma sputtering. Optimization of preparative conditions allowed a fine tuning of Pt NPs size, loading and distribution and thus a controlled tailoring of g-CN/Pt interfacial interactions. Modulation of such features yielded g-CN-Pt-based anode materials with appealing activity and stability towards the ethanol oxidation reaction (EOR) in alkaline aqueous solutions, as revealed by electrochemical tests both in the dark and under irradiation.
View Article and Find Full Text PDFMitochondria-engine with self-regulation to restore degenerated intervertebral disc cells via bioenergetic robust hydrogel design.
Bioact Mater
October 2024
Analytical & Testing Center, Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610065, China.
Article Synopsis
- Intervertebral disc degeneration (IDD) is linked to inflammation and decreased mitochondrial membrane potential (MMP), with reactive oxygen species (ROS) playing a significant role in this process.
- * Researchers proposed a "mitochondrion-engine" system that cools inflammatory environments and restores mitochondrial function, using a composite hydrogel and 3D-printed scaffold to enhance cell energy metabolism.
- * The system demonstrated improved cell proliferation, collagen synthesis, and mitochondrial activity under oxidative stress, suggesting it could be an effective treatment for IDD.
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