The authors present the results of laboratory and clinical analysis of vinyl siloxane polymer-based compositions, Pt catalyzer-hardened. Animal experiments have demonstrated high biologic inertness of the implantation material, inducing virtually no irritation of the adjacent tissues. These results confirm the possibility of clinical use of this new material.
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Polymers (Basel)
January 2025
Jožef Stefan Institute, Department of Physical and Organic Chemistry, Jamova c. 39, SI-1000 Ljubljana, Slovenia.
The study aimed to develop a superhydrophobic coating on the aluminium alloy 2024-T3 surface. The desired surface roughness and low surface energy were achieved with SiO nanoparticles, synthesised via the Stöber method and modified with alkyl silane (AS) or perfluoroalkyl silane (FAS). To enhance particle adhesion to the alloy substrate, nanoparticles were incorporated into a hybrid sol-gel coating composed of tetraethyl orthosilicate, methyl methacrylate, and 3-methacryloxypropyl trimethoxysilane.
View Article and Find Full Text PDFSensors (Basel)
January 2025
Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias (INESC-MN), Rua Alves Redol, 1000-029 Lisbon, Portugal.
Point-of-care (PoC) devices offer a promising solution for fast, portable, and easy-to-use diagnostics. These characteristics are particularly relevant in agrifood fields like viticulture where the early detection of plant stresses is crucial to crop yield. Microfluidics, with its low reagent volume requirements, is well-suited for such applications.
View Article and Find Full Text PDFMolecules
January 2025
Centre for Surface Chemistry and Catalysis-Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001 Heverlee, Belgium.
This work describes the synthesis of ordered 3D siloxane-silsesquioxane reticular materials with silicate D4R cubes (SiO), harvested from a sacrificial tetrabutylammonium cyclosilicate hydrate (TBA-CySH) precursor, interlinked with octyl and dicyclopentyl (Cp) hydrocarbon functionalities in a one-step synthesis with organodichlorosilanes. Advanced solid-state NMR spectroscopy allowed us to unravel the molecular order of the nodes and their interconnection by the silicone linkers. In the case of octyl-methyl silicone linkers, changing the silane-to-silicate ratio in the synthesis allowed for tuning the length of the linker between the nodes.
View Article and Find Full Text PDFChem Commun (Camb)
January 2025
Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
Self-healable, multilayered organosiloxane films were prepared thermal conversion of lamellar organosiloxane films containing poly(ethylene oxide)-polydimethylsiloxane-poly(ethylene oxide) block copolymers. The incorporation of silanolate groups enabled crack healing through dynamic siloxane equilibration. The enhanced hardness and suppressed cyclic siloxane formation resulting from the multilayered structure exhibit potential for practical applications.
View Article and Find Full Text PDFAdv Healthc Mater
January 2025
Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, Jinan, Shandong, 250012, China.
Bone defects caused by fractures and diseases often do not heal spontaneously. They require external agents for repair and regeneration. Bone tissue engineering is emerging as a promising alternative to traditional therapies like autografts and allografts.
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