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Comparative In Vitro Analysis of Fracture Toughness and Flexural Strength in Interim Fixed Partial Dentures Reinforced With Various Nanofibers.
Cureus
December 2024
Prosthodontics and Crown and Bridge, The Oxford Dental College, Bengaluru, IND.
Aim To evaluate and compare the fracture toughness and flexural strength of interim fixed partial dentures reinforced with carbon, glass, and Kevlar nanofibers. Materials and methods This study explored the effect of reinforcing poly methyl methacrylate with carbon, glass, and Kevlar fibers on its fracture toughness and flexural strength. A total of 120 samples were prepared, divided into two groups of 60 samples each, with one group tested for fracture toughness and the other for flexural strength.
View Article and Find Full Text PDFFracture characteristics of human cortical bone influenced by the duration of glycation.
JBMR Plus
February 2025
Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 22529 Hamburg, Germany.
Advanced glycation end products (AGEs) accumulate in various tissues, including bone, due to aging and conditions like diabetes mellitus. To investigate the effects of AGEs on bone material quality and biomechanical properties, an study utilizing human tibial cortex, sectioned into 90 beams, and randomly assigned to three mechanical test groups was performed. Each test group included ribose ( = 0.
View Article and Find Full Text PDFUltralight and Flexible Subnanowire Aerogels for Intrinsically Hydrophobic Thermal Insulation.
ACS Appl Mater Interfaces
January 2025
School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, P. R. China.
Aerogels are regarded as the next generation of thermal insulators; however, conventional aerogels suffer from issues such as brittleness, low moisture resistance, and a complex production process. Subnanowires (SNWs) are emerging materials known for their exceptional flexibility, toughness, intrinsic hydrophobicity, and gelling capabilities, making them ideal building blocks for flexible, tough, hydrophobic, and thermally insulating aerogels. Herein, we present a simple and scalable strategy to construct SNW aerogels by freeze-drying hydroxyapatite (HAP) SNW dispersions in cyclohexane.
View Article and Find Full Text PDFFluorinated Cyclic Olefin Copolymers (COCs) and Cyclic Olefin Polymers (COPs).
Macromol Rapid Commun
January 2025
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, China.
The demand for insulating materials with superior dielectric properties has increased. Among these materials, polymers containing cyclic structure including cyclic olefin copolymer (COC) and cyclic olefin polymer (COP) stand out because of their excellent dielectric properties originating from the pure hydrocarbon structure. Introducing fluorine into polymers is one efficient strategy for optimizing the dielectric and the related important properties.
View Article and Find Full Text PDFJejunal Gossypiboma Mimicking a Gastrointestinal Stromal Tumor: A Case of a Rare Iatrogenic Complication and Review of the Literature.
Cureus
December 2024
Department of Pathology, General Hospital of Thessaloniki Agios Pavlos, Thessaloniki, GRC.
The term "gossypiboma" or "textiloma" is used to describe a mass of retained cotton matrix and the surrounding inflammatory response inside a body cavity following surgical intervention. The precise incidence of this phenomenon is uncertain, as cases are frequently underreported due to concerns related to medical malpractice. This rare complication poses a diagnostic dilemma due to the non-specific clinical and radiological features, which can result in significant morbidity and mortality.
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