Search results for "Hydrophobic drug"
showing 4 items of 4 documents
Preparation and characterization of bio-organoclays using nonionic surfactant
2015
The present study was aimed at the preparation and characterization of tailor made hybrid materials, whose peculiar hosting capability could be exploited in biotechnological applications. With this purpose, the modification of K10 montmorillonite by intercalation of Tween 20 surfactant, was accomplished. The influence of two internal parameters, namely pH and surfactant/clay ratio, on the surfactant uptake ability by clay was investigated. The adsorption mechanism was elucidated on the basis of complementary kinetic and equilibrium studies and, then, corroborated by the useful information provided by the FT-IR, TGA and XRD characterization. The gathered results allow to draw the conclusion …
Long-Circulating Hyaluronan-Based Nanohydrogels as Carriers of Hydrophobic Drugs
2018
[EN] Nanohydrogels based on natural polymers, such as polysaccharides, are gaining interest as vehicles for therapeutic agents, as they can modify the pharmacokinetics and pharmacodynamics of the carried drugs. In this work, hyaluronan-riboflavin nanohydrogels were tested in vivo in healthy rats highlighting their lack of toxicity, even at high doses, and their different biodistribution with respect to that of native hyaluronan. They were also exploited as carriers of a hydrophobic model drug, the anti-inflammatory piroxicam, that was physically embedded within the nanohydrogels by an autoclave treatment. The nanoformulation was tested by intravenous administration showing an improvement of…
Micelles of hyaluronic acid-hexadecylamine derivatives for ocular release of hydrophobic drugs
2016
Die Bedeutung der Bindung von Pharmaka an Albumin und Erythrocyten eines Perfusionsmediums der isolierten Rattenleber
1971
The binding of lipophilic drugs to albumin and erythrocytes and its importance for the uptake of the drugs into the isolated rat liver were investigated. Promazine and chlorpromazine were taken as lipophilic drugs, which were compared in some experiments with 3,3′-dimethyl-4,4′-diacetyldiphenylbisguanylhydrazone (BG 60), a much more hydrophilic drug.