To accelerate hydrogel formation and further simplify the synthetic procedure, a series of MCu (M = Pd, Pt, and Au) bimetallic aerogels is synthesized from the in situ reduction of metal precursors through enhancement of the gelation kinetics at elevated temperature. Moreover, the resultant PdCu aerogel with ultrathin nanowire networks exhibits excellent electrocatalytic performance toward ethanol oxidation, holding promise in fuel-cell applications.
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http://dx.doi.org/10.1002/adma.201602546 | DOI Listing |
Nanoscale Adv
December 2024
Institute of Chemical Technology, Vietnam Academy of Science and Technology 1A TL29 Street, District 12 Ho Chi Minh City 700000 Vietnam
In this study, we introduce an synthesis technique for incorporating gold nanoparticles (AuNPs) into a magnetic nanocomposite made of glucosamine and alginate (GluN/Alg) ionotropic gelation. GluN acted as a reducing agent for gold ions, leading to the formation of AuNPs which embedded in the nanocomposite FeO@GluN/Alg. Analytical techniques confirmed the crystallite structure of the nanocomposite AuNPs/FeO@GluN/Alg, which had an average size of 30-40 nm.
View Article and Find Full Text PDFInt J Pharm
December 2024
Université de Lorraine, CITHEFOR, F-54000 Nancy, France. Electronic address:
As the main protein forming the vascular extracellular matrix, collagen has a weak antigenicity, making it an attractive candidate for coatings of vascular grafts. In order to bring antithrombotic properties to collagen for obtaining suitable blood compatibility of surfaces and further bioactive molecule carrying capacity, heparinization appears as a method of choice. Thus, in this article, pH-driven self-assembly was used to form collagen-based hydrogels with physical incorporation of heparins, especially low molecular weight heparin or unfractionated heparin at 1 IU/mL and 6 IU/mL.
View Article and Find Full Text PDFJ Chem Phys
December 2024
Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
Micron-scale colloidal particles with short-ranged attractions, e.g., colloids functionalized with single-stranded DNA oligomers, have emerged as a powerful platform for studying colloidal self-assembly phenomena with the long-term goal of identifying routes for metamaterial fabrication.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore 38000, Pakistan. Electronic address:
This research work was designed to develop efficient Diosgenin (DGN) loaded biodegradable nanoparticles (DGN-NPs) for treating rheumatoid arthritis. The DGN-NPs were synthesized by ionic-gelation method using chitosan as a biodegradable polymer and in-vitro release study was performed followed by kinetics study. DGN-NPs had an average size of 290 nm, zeta potential of +11.
View Article and Find Full Text PDFPolymers (Basel)
December 2024
College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
The aim of this study was to develop a thermosensitive mucoadhesive (MA) in situ nasal gel for sumatriptan. A 3D response surface methodology (Design of Expert version 11) was employed to formulate nine different formulations. The Pluronic F-127 concentration (X1) and chitosan concentration (X2) were selected as independent factors.
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