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Lubricating Copolymer Brushes Achieving Excellent Antiadhesion and Antibacterial Performance through Hydration and Electrostatic Repulsion Effects.
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Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China.
Interventional catheters have been widely applied in diagnostics, therapeutics, and other biomedical areas. The complications caused by catheter-related bacterial infection, venous thrombosis, and vascular abrasion have become the main reasons for the failure of interventional therapy. In this study, polyacrylamide/poly(acrylic acid) lubricating copolymer brushes were constructed on the surface of catheters and efficiently resisted the adhesion of blood components and bacteria through hydration and electrostatic repulsion effects.
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Background: Deepening of the nasolabial fold (NLF), drooping of the nasal tip, and facial expressions perceived as angry face, are common esthetic concerns. However, no studies have correlated this set of signs and symptoms with common anatomical causes. We review anatomical considerations of the region and propose a combined treatment modality.
View Article and Find Full Text PDFFerroelectric polarization is considered to be an effective strategy to improve the oxygen evolution reaction (OER) of photoelectrocatalysis. The primary challenge is to clarify how the polarization field controls the OER dynamic pathway at a molecular level. Here, electrochemical fingerprint tests were used, together with theoretical calculations, to systematically investigate the free energy change in oxo and hydroxyl intermediates on TiO-BaTiO core-shell nanowires (BTO@TiO) upon polarization in different pH environments.
View Article and Find Full Text PDFPolycalmagite Coating Enables Long-Term Alkaline Seawater Oxidation Over NiFe Layered Double Hydroxide.
Small
January 2025
College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, 250014, China.
Renewable energy-powered seawater electrolysis is a green and attractive technique for producing high-purity hydrogen. However, severe chlorideions (Cl) and their derivatives tend to corrode anodic catalysts at ampere-level current densities and hinder the application of seawater-to-H systems. Herein, a polycalmagite (PCM)-coated NiFe layered double hydroxide is presented on Ni foam (NiFe LDH@PCM/NF) that exhibits exceptional stability in alkaline seawater.
View Article and Find Full Text PDFRegulatory Trends of Organophosphate and Pyrethroid Pesticides in Cannabis and Applications of the Comparative Toxicogenomics Database and Caenorhabditis elegans.
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School of Mathematical and Natural Sciences, Arizona State University, Phoenix and Glendale, AZ.
Organophosphate and pyrethroid pesticides are common contaminants in cannabis. Due to the status of cannabis as an illicit Schedule I substance at the federal level, there are no unified national guidelines in the U.S.
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