Results 111 to 120 of about 177,103 (312)
Mechanical and dissolution properties of Eudragit L100 and S100 films in buffer solutions
Background: Methacrylic acid (MAA) and methyl methacrylate (MMA) affect the mechanical and dissolution properties of enteric polymers, such as Eudragit L100 and S100.
Vaibhav Jindas Ambudkar, Rashmi Chauhan
doaj +1 more source
Dissolution studies have become of great significance because, in most cases, drug dissolution is the rate-limiting step in the absorption process. As occurs with solid oral dosage forms, heterogeneous disperse systems (suspensions) could also have some ...
Ruiz Martínez, Mª Adolfina +4 more
core +1 more source
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
The kinetics of the dissolution of chalcopyrite in chloride media
One of the most important outstanding problems with the hydrometallurgy of copper is the low temperature leaching of chalcopyrite. In this thesis, a fundamental study at low temperature was undertaken in order to establish a mechanism, which is ...
Velásquez Yévenes, Lilian
core
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin +2 more
wiley +1 more source
Carbonate dissolution, a key process in the global carbon cycle, sequesters large quantities of atmospheric CO2 and directly regulates inorganic carbon fluxes from terrestrial, river, and ocean ecosystems.
Weihua Tang +8 more
doaj +1 more source
Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo +3 more
wiley +1 more source
Dissolution of Fe(III)-rich basaltic glass in microbial cultures of iron-reducing microorganisms
The aim of this study was to investigate the contribution of Fe(III)-reducing microorganisms to the dissolution rates of Fe(III)-rich synthetic basaltic glass.
Elena Yunda +5 more
doaj +1 more source
The anodic dissolution of covellite in acidic, chloride solutions
An electrochemical study was conducted on a stationary, synthetically produced, covellite electrode in acidic, chloride solutions at ambient conditions to investigate the dissolution behaviour of the mineral over a surface potential range from the open ...
Basson, Petrus
core

