Results 71 to 80 of about 33,115 (300)

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Explaining the Release Mechanism of Ritonavir/PVPVA Amorphous Solid Dispersions

Pharmaceutics, 2022
In amorphous solid dispersions (ASDs), an active pharmaceutical ingredient (API) is dissolved on a molecular level in a polymeric matrix. The API is expected to be released from the ASD upon dissolution in aqueous media.
Adrian Krummnow, Andreas Danzer, Kristin Voges, Stefanie Dohrn, Samuel O. Kyeremateng, Matthias Degenhardt, Gabriele Sadowski   +6 more
doaj   +1 more source

Uncertainties of size measurements in electron microscopy characterization of nanomaterials in foods [PDF]

, 2015
Electron microscopy is a recognized standard tool for nanomaterial characterization, and recommended by the European Food Safety Authority for the size measurement of nanomaterials in food.
Boxall, A. B. A., Chaudhry, Q., Dudkiewicz, A., Hofmann, P., Linsinger, T. P. J., Molhave, K., Tiede, K.   +6 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Development and characterization of nifedipine-amino methacrylate copolymer solid dispersion powders with various adsorbents

Asian Journal of Pharmaceutical Sciences, 2017
Solid dispersions of nifedipine (NDP), a poorly water-soluble drug, and amino methacrylate copolymer (AMCP) with aid of adsorbent, that is, fumed silica, talcum, calcium carbonate, titanium dioxide, and mesoporous silica from rice husks (SRH), were ...
Yotsanan Weerapol, Sontaya Limmatvapirat, Jurairat Nunthanid, Srisuda Konthong, Supakij Suttiruengwong, Pornsak Sriamornsak   +5 more
doaj   +1 more source

Development and Characterization of Solid Dispersion for Dissolution Improvement of Furosemide by Cogrinding Method [PDF]

Advanced Pharmaceutical Bulletin, 2014
Purpose: The purpose of this study was to prepare and characterize solid dispersion formulation of furosemide to enhance dissolution rate. Methods: Solid dispersions with different drug: carrier ratios were prepared by cogrinding method using ...
Mohammad Reza Siahi-Shadbad, Saeed Ghanbarzadeh, Mohammad Barzegar-Jalali, Hadi Valizadeh, Alireza Taherpoor, Ghobad Mohammadi, Azim Barzegar-Jalali, Khosro Adibkia   +7 more
doaj   +1 more source

Overshoots in stress strain curves: Colloid experiments and schematic mode coupling theory

, 2012
The stress versus strain curves in dense colloidal dispersions under start-up shear flow are investigated combining experiments on model core-shell microgels, computer simulations of hard disk mixtures, and mode coupling theory. In dense fluid and glassy
Amann, Christian P., Ballauff, Matthias, Fuchs, Matthias, Krüger, Matthias, Siebenbürger, Miriam, Weysser, Fabian   +5 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Sweeteners Show a Plasticizing Effect on PVP K30—A Solution for the Hot-Melt Extrusion of Fixed-Dose Amorphous Curcumin-Hesperetin Solid Dispersions

Pharmaceutics
The co-administration of curcumin and hesperetin might be beneficial in terms of neuroprotective activity; therefore, in this study, we attempted to develop a fixed-dose formulation comprising these two compounds in an amorphous state.
Kamil Wdowiak, Lidia Tajber, Andrzej Miklaszewski, Judyta Cielecka-Piontek   +3 more
doaj   +1 more source

Molecular Disorder of Bicalutamide—Amorphous Solid Dispersions Obtained by Solvent Methods

Pharmaceutics, 2018
The effect of solvent removal techniques on phase transition, physical stability and dissolution of bicalutamide from solid dispersions containing polyvinylpyrrolidone (PVP) as a carrier was investigated.
Joanna Szafraniec, Agata Antosik, Justyna Knapik-Kowalczuk, Karolina Gawlak, Mateusz Kurek, Jakub Szlęk, Witold Jamróz, Marian Paluch, Renata Jachowicz   +8 more
doaj   +1 more source