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Tuning Colloidal Gel Properties: The Influence of Central and Noncentral Forces.
Langmuir
January 2025
Department of Materials, ETH Zurich, 8093 Zurich, Switzerland.
Colloidal gels, ubiquitous in industrial applications, can undergo reversible solid-to-liquid transitions. Recent work demonstrates that adding surface roughness to primary particles enhances the toughness and influences the self-healing properties of colloidal gels. In the present work, we first use colloidal probe atomic force microscopy (CP-AFM) to assess the quantitative changes in adhesive and frictional forces between thermoresponsive particles as a function of their roughness.
View Article and Find Full Text PDFEnhanced response of an infrared photodetector based on hybridization between reduced graphene oxide and up-conversion microparticles.
RSC Adv
January 2025
Faculty of Materials Science and Technology, University of Science Ho Chi Minh City Vietnam
Infrared (IR) photodetectors play an important role in many fields such as industry, medicine, security, Achieving high response and maintaining stability in the device performance while reducing materials cost are required for the practical use of optical sensors. This study presents the development of a low-cost but high-performance IR photodetector based on a hybridization of up-conversion microparticles of NaYF:Tm,Yb (UCMPs) and reduced graphene oxide material (RGO). In this combination, UCMPs play the role of absorbing photons from 980 nm excitation light, generating electron-hole pairs, which are useful for sensing applications.
View Article and Find Full Text PDFFlexible and Durable Conducting Fabric Electrodes for Next-Generation Wearable Supercapacitors.
ACS Appl Mater Interfaces
January 2025
Department of Physics, School of Electrical and Electronics Engineering, SASTRA Deemed to be University, Thanjavur 613 401, Tamil Nadu, India.
This study presents the fabrication of highly conducting Au fabric electrodes using a layer-by-layer (LBL) approach and its application toward energy storage. Through the ligand-exchange mechanism, the alternating layers of tris(2-aminoethyl)amine (TREN) and gold nanoparticles (Au NPs) encapsulated with tetraoctylammonium bromide (TOABr) ligands (Au-TOABr) were deposited onto the fabric to achieve a highly conducting Au fabric (0.12 Ω/□) at room temperature in just two LBL cycles.
View Article and Find Full Text PDFEvaluation of Neutrophil Elastase Inhibitors as Potential Therapies for Associated Neutropenia.
J Cell Immunol
January 2024
Department of Medicine, University of Washington, Seattle, Washington, U.S.A.
Neutrophil elastase () mutations are the most common cause of cyclic (CyN) and congenital neutropenia (SCN), two autosomal dominant disorders causing recurrent infections due to impaired neutrophil production. Granulocyte colony-stimulating factor (G-CSF) corrects neutropenia but has adverse effects, including bone pain and in some cases, an increased risk of myelodysplasia (MDS) and acute myeloid leukemia (AML). Hematopoietic stem cell transplantation is an alternative but is limited by its complications and donor availability.
View Article and Find Full Text PDFDevelopment and Evaluation of Aloperine-Loaded Nanostructured Lipid Carriers for the Treatment of Pulmonary Arterial Hypertension.
Int J Nanomedicine
January 2025
School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, People's Republic of China.
Objective: This study focuses on the development and evaluation of nanostructured lipid carriers (NLCs) loaded with aloperine as a potential therapeutic approach for the treatment of pulmonary arterial hypertension.
Methods: The NLCs were designed to enhance the solubility, stability, and bioavailability of aloperine, a compound with vasodilatory and anti-inflammatory properties. Through a series of experiments including single-factor experimentation, transmission electron microscopy, high-performance liquid chromatography, in vivo pharmacokinetics, and tissue distribution studies, we assessed the physicochemical properties, drug release profiles, and in vitro and in vivo performance of this novel nanocarrier.
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