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Characterizing the Transient Emission of Particles and Gases from a Single Puff of Electronic Cigarette Smoke.
Chem Res Toxicol
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Department of Chemical, Environmental, and Materials Engineering, University of Miami, Miami, Florida 33146, United States.
This study employed high-time-resolution systems to examine the transient properties of aerosols and gases emitted from electronic cigarette (EC) puffs. Using a fast aerosol sizer, we measured particle size distributions (PSDs) across various EC brands (JUUL, VUSE, VOOPOO), revealing sizes ranging from 5 to 1000 nm at concentrations of 10 to 10 cm. Most aerosols were found to be in the ultrafine range (below 100 nm), with JUUL-, VUSE-, and VOOPOO-producing aerosols with geometric mean sizes of 19.
View Article and Find Full Text PDFCoixol-Loaded Hydrogels Promote Osteochondral Defect Repair via Modulation of Ferroptosis and Autophagy in Chondrocytes.
ACS Biomater Sci Eng
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The Affiliated Ganzhou Hospital of Nanchang University, Meiguan Avenue No. 16, Ganzhou 341000, China.
Osteoarthritis (OA) is a chronic multifactorial disease characterized by cartilage degeneration, pain, and reduced mobility. Current therapies primarily aim to relieve pain and restore function, but they often have limited effectiveness and side effects. Coixol, a bioactive compound from Coix lacryma-jobi L.
View Article and Find Full Text PDFInP-Based Quantum Dots as Photosensitizers in Photodynamic Antimicrobial Materials.
ACS Appl Bio Mater
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Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States.
Ligand-functionalized InP-based quantum dots (QDs) have been developed as an innovative class of nontoxic photosensitizer suitable for antimicrobial applications, aimed at reducing or preventing pathogen transmission from one host to another via high contact surfaces. A hot injection method followed by functionalization via ligand exchange with 9-anthracene carboxylic acid (ACA) yielded the desired core/shell InP/ZnSe/ZnS QDs. Transmission electron microscopy (TEM) revealed these QDs to be uniform in size (∼3.
View Article and Find Full Text PDFMucin-Based Dual Cross-Linkable IPN Hydrogel Bioink for 3D Bioprinting and Cartilage Tissue Engineering.
ACS Appl Bio Mater
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Department of Materials Engineering, Indian Institute of Science Bangalore, Karnataka 560012, India.
The cartilage possesses limited regenerative capacity, necessitating advanced approaches for its repair. This study introduces a bioink designed for cartilage tissue engineering (TE) by incorporating ionically cross-linkable alginate into the photo-cross-linkable MuMA bioink, resulting in a double cross-linked interpenetrating network (IPN) hydrogel. Additionally, hyaluronic acid (HA), a natural component of cartilage and synovial fluid, was added to enhance the scaffold's properties.
View Article and Find Full Text PDFLupus disease activity state and Foxp3 gene polymorphism.
Egypt J Immunol
January 2025
Department of Medical Microbiology and Immunology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
The autoimmune disease systemic lupus erythematosus (SLE) is presented with many clinical symptoms. The transcription factor fork head box protein 3 (Foxp3) is expressed on regulatory T (T-reg) cells and essential for its development and function. Functional single-nucleotide polymorphisms (SNPs) in the Foxp3-3279 (rs3761548 C/A) gene influence SLE pathogenesis.
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