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Observation of Extraordinary Vibration Scatterings Induced by Strong Anharmonicity in Lead-Free Halide Double Perovskites.
Adv Sci (Weinh)
January 2025
Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, Hong Kong.
Lead-free halide double perovskites provide a promising solution for the long-standing issues of lead-containing halide perovskites, i.e., the toxicity of Pb and the low stability under ambient conditions and high-intensity illumination.
View Article and Find Full Text PDFDiet-Induced Obesity Modulates Close-Packing of Triacylglycerols in Lipid Droplets of Adipose Tissue.
J Am Chem Soc
December 2024
Department of Bioengineering, Grainger College of Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States.
Adipose-derived lipid droplets (LDs) are rich in triacylglycerols (TAGs), which regulate essential cellular processes, such as energy storage. Although TAG accumulation and LD expansion in adipocytes occur during obesity, how LDs dynamically package TAGs in response to excessive nutrients remains elusive. Here, we found that LD lipidomes display a remarkable increase in TAG acyl chain saturation under calorie-dense diets, turning them conducive to close-packing.
View Article and Find Full Text PDFShort- and long-term pathologic responses to quartz are induced by nearly free silanols formed during crystal fracturing.
Part Fibre Toxicol
December 2024
Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université catholique de Louvain (UCLouvain), Brussels, Belgium.
Article Synopsis
- - The inhalation of respirable crystalline silica, particularly quartz, is linked to serious health issues like lung inflammation, fibrosis, cancer, and autoimmune diseases, with nearly free silanols (NFS) from fractured quartz being key players in this toxicity.
- - Experiments on mice showed that exposure to NFS-rich quartz caused significant acute and long-term inflammatory responses, fibrosis, cancer, and autoimmune signs, while NFS-poor quartz showed no such effects.
- - The study highlights that NFS-rich quartz specifically triggers harmful biological responses, including increased pro-inflammatory cytokines, lung fibrosis markers, tumors, and autoantibodies, underscoring its health risks compared to less reactive quartz forms.
New Developments in Imaging in Crystalline Arthritis.
Rheum Dis Clin North Am
November 2024
Department of Medicine, Allergy/Immunology & Rheumatology Division, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box 695, Rochester, NY 14642, USA. Electronic address:
Article Synopsis
- * Traditional diagnosis relied on joint aspiration and microscopy, but imaging techniques are now preferred and can often suffice.
- * Recommended imaging methods include ultrasound, dual-energy CT scans, and regular X-rays, which can help locate inflammation and identify crystal deposits effectively.
Prevention of Argentinian flag sign in intumescent cataracts using anterior chamber air bubble and cortical fluid release techniques.
BMC Ophthalmol
October 2024
State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China.
Article Synopsis
- The study aimed to evaluate a new method to prevent the Argentinian flag sign during anterior capsulotomy in patients with intumescent cataracts, with proper registration and documentation.
- A total of 61 patients underwent several preoperative examinations, and the new technique involved using an air bubble and puncturing to manage the liquefied cortex, ensuring no Argentinian flag sign occurred during the procedure.
- Results showed successful capsulorrhexis and satisfactory postoperative outcomes for all patients, with minimal complications, indicating the technique is simple, convenient, and worth clinical promotion.
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