نتایج جستجو برای: emulsion solvent evaporation technique

تعداد نتایج: 689730  

Journal: :International Journal of Nanomedicine 2007
Bruno Sarmento Susana Martins Domingos Ferreira Eliana B Souto

The aim of this work was to produce and characterize cetyl palmitate-based solid lipid nanoparticles (SLN) containing insulin, and to evaluate the potential of these colloidal carriers for oral administration. SLN were prepared by a modified solvent emulsification-evaporation method based on a w/o/w double emulsion. The particle size, zeta potential and association efficiency of unloaded and in...

Journal: :research in pharmaceutical sciences 0
a r tapas p kawtikwar d sakarkar

felodipine is a second generation calcium channel blocker widely used as antihypertensive and antianginal drug which belongs to bcs class ii category. hence, its low water solubility limits the pharmacological effect. the aim of this study was to improve the dissolution rate of felodipine using spherical agglomeration technique with acetone, water and dichloromethane as good solvent, poor solve...

Journal: :Molecules 2014
Eliska Vaculikova Daniela Placha Martin Pisarcik Pavlina Peikertova Katerina Dedkova Ferdinand Devinsky Josef Jampilek

One approach for the enhancement of oral drug bioavailability is the technique of nanoparticle preparation. Risedronate sodium (Biopharmaceutical Classification System Class III) was chosen as a model compound with high water solubility and low intestinal permeability. Eighteen samples of risedronate sodium were prepared by the solvent evaporation technique with sodium dodecyl sulfate, polysorb...

Journal: :ACS Applied Materials & Interfaces 2021

This work demonstrates the fabrication of surface-textured microcapsules formed from emulsion droplets, which are stabilized by an interlocking mesh needle-like crystals. Crystals small-organic-compound decane-1,10-bis(cyclohexyl carbamate) within geometric confinement through precipitation a binary-solvent-dispersed phase. binary mixture consists volatile solvent and nonvolatile carrier oil. C...

2008
Delmar Salomon

Subject area: Quality/Test Procedures Several recovery procedures for asphalt emulsion residue have been used over the years, but there is no one procedure that has been universally accepted. In this study three recovery methods are used to obtain the residue of the emulsified asphalt: 1) distillation (ASTM D 6997), 2) evaporation (ASTM D 6934) and, 3) the newly approved moisture analyzer balan...

Journal: :iranian journal of pharmaceutical research 0
reza masaeli dental biomaterials department, school of dentistry, tehran university of medical sciences, tehran, iran teherh sadat jafarzadeh kashi dental biomaterials department, school of dentistry, tehran university of medical sciences, tehran, iran rasoul dinarvand nanotechnology research centre, faculty of pharmacy, tehran university of medical sciences, tehran 1417614411, iran mohammadreza tahriri dental biomaterials department, school of dentistry, tehran university of medical sciences, tehran, iran vahid rakhshan department of anatomy, dental branch, islamic azad univesity mehdi esfandyari-manesh nanotechnology research center,tehran university of medical sciences, tehran, iran

microspheres formulated from poly (d,l-lactic-co-glycolide) (plga), a biodegradable polymer, have been extensively evaluated as a drug delivery system. in this study, the preparation, characterization and drug release properties of the plga microspheres were evaluated. simvastatin (sim)-loaded plga microspheres were prepared by oil-in-water emulsion/solvent evaporation method. the microspheres ...

Journal: :iranian journal of pharmaceutical sciences 0
fatemah atyabi department of pharmaceutics, faculty of pharmacy, tehran university of medical sciences, tehran, iran afsaneh mohammadi department of pharmaceutics, faculty of pharmacy, tehran university of medical sciences, tehran, iran rassoul dinarvand department of pharmaceutics, faculty of pharmacy, tehran university of medical sciences, tehran, iran

the purpose of this study was to prepare and characterize nimodipine loaded microspheres using ethyl cellulose (ec) as a carrier polymer through an emulsion solvent evaporation method. these evaluations characterized the pattern of drug release from prepared microspheres. nimodipin loaded microspheres were prepared using an emulsification solvent evaporation method. the effect of process variab...

Journal: :Acta pharmaceutica 2011
Amelia M Avachat Pralhad N Bornare Rakesh R Dash

An emulsion solvent evaporation method was employed to prepare microspheres of ropinirole hydrochloride, a highly water soluble drug, by using ethylcellulose and PEG with the help of 32 full factorial design. The microspheres were made by incorporating the drug in a polar organic solvent, which was emulsified using liquid paraffin as an external oil phase. Effects of various process parameters ...

2016
Davide Bandera Veronika R. Meyer David Prevost Tanja Zimmermann Luciano F. Boesel

We developed a paper coating for the potential application in food packaging based on polylactide and montmorillonite. It is applied to the paper in the form of a stable, water-based latex with a solid content of 25–28 wt %. The latex is prepared from a commercially available polylactide, surfactants, montmorillonite, a plasticizer, chloroform (to be removed later) and water by an emulsion/solv...

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