نتایج جستجو برای: microemulsion

تعداد نتایج: 1878  

Journal: :گوارش 0
siavosh nasseri moghaddamm reza malekzadeh mohammadjavad kaviani hasan taheri naser kamalian

microemulsion formulation of cyclosporin a (csa) in autoimmune hepatitis (aih)

Journal: :international journal of nanoscience and nanotechnology 2013
y. bayat m. zarandi

the behavior of nanoscale energetic materials is quite different from micronsized energetic materials inmany ways. recently, some techniques such as sol-gel method, high speed air impaction and vacuum codeposition have been employed to obtain nanoscale energetic materials. however, only few attentionswere paid to nanoscale energetic materials because of the fabrication difficulty. in this paper...

Journal: :iranian journal of pharmaceutical research 0
maryam azimi department of pharmaceutical biotechnology, school of pharmacy, shahid beheshti university of medical sciences nastaran nafissi-varcheh department of pharmaceutical biotechnology, school of pharmacy, shahid beheshti university of medical sciences mohammad ali faramarzi department of pharmaceutical biotechnology, faculty of pharmacy & biotechnology research center, tehran university of medical sciences reza aboofazeli department of pharmaceutics, school of pharmacy, shahid beheshti uni. med. sci.

the aim of this study was to develop a microemulsion system as a medium for laccase-catalyzed reactions. phase behavior studies were conducted by constructing partial pseudo-ternary phase diagrams for systems comprising of cetyltrimethylammonium bromide (ctab), various organic solvents as the oil phase (i.e., hexane, cyclohexane, heptane, octane, isooctane, toluene, isopropyl myristate), two co...

Journal: :jundishapur journal of natural pharmaceutical products 0
eskandar moghimipour nanotechnology research center, jundishapur university of medical sciences, ahvaz, ir iran; department of pharmaceutics, faculty of pharmacy, jundishapur university of medical sciences, ahvaz, ir iran anayatollah salimi nanotechnology research center, jundishapur university of medical sciences, ahvaz, ir iran; department of pharmaceutics, faculty of pharmacy, jundishapur university of medical sciences, ahvaz, ir iran; nanotechnology research center, jundishapur university of medical sciences, ahvaz, ir iran. department of pharmaceutics, faculty of pharmacy, jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-6113738381 masoud karami department of pharmaceutics, faculty of pharmacy, jundishapur university of medical sciences, ahvaz, ir iran sara isazadeh department of pharmaceutics, faculty of pharmacy, jundishapur university of medical sciences, ahvaz, ir iran

results the results showed that the maximum oil was incorporated in microemulsion system that contained surfactant to cosurfactant ratio of 4:1. the mean droplet size range of microemulsion formulation was in the range of 5.09 to 159 nm, and its refractory index (ri) and ph were 1.44 and 7, respectively. viscosity range was 57-226 cps. drug release profile showed that 48.18% of the drug release...

Journal: :iranian journal of pharmaceutical sciences 0
sampathi sunitha department of pharmaceutics, national institute of pharmaceutical education and research (niper-hyd) wankar jitendra junior research fellow, center for cellular and molecular biology (ccmb), tarnaka, hyderabad, a.p., india dodoala sujatha department of pharmacology and toxicology, national institute of pharmaceutical education and research (niper-hyd), balanagar mankala santhosh kumar department of pharmaceutics, srikrupa institute of pharmaceutical sciences, vill: velkatta, mdl: kondapak, rd: siddipet, dist: medak, andhra pradesh - 502277, india.

the available minoxidil formulations for topical application suffer with major drawback having less contact time with the scalp which requires repeated application. hence, the present study was aimed to investigate the effect of microemulsions and microemulsion based hydrogel systems (mehs) for increased percutaneous penetration of minoxidil. minoxidil microemulsions were developed by following...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2007
Y Hattori H Ushiki L Courbin P Panizza

The present contribution reports on the observation of two diffusive relaxation modes in a concentrated microemulsion made of repulsive droplets. These two modes can be interpreted in the frame of Weissman's and Pusey's theoretical pioneering works. The fast mode is associated to the collective diffusion of droplets whereas the slow one corresponds to the relaxation of droplet concentration flu...

2007
Chung-Hsin Lu Shih-Yen Chen Chia-Hao Hsu

Nanosized strontium aluminate phosphors co-activated by Eu2+ and Dy3+ were prepared via a novel reverse microemulsion process. This new ynthesis technique lowered the synthesis temperature of SrAl2O4: Eu2+, Dy3+ phosphors to as low as 900 ◦C, and also reduced the particle size o the nanometer scale (around 40 nm). In the microemulsion process, the constituent cations were trapped by numerous na...

2013
Showkat A. Bhawani Hassan M. Albishri Ziya Ahmad Khan Mohamad N. Mohamad Ibrahim A. Mohammad

This review incorporates a large number of chromatographic systems modified by the surfactants. A large number of solvent systems and stationary phases are summarized in this paper. Three different kinds of surfactants (anionic, cationic, and nonionic) are used as modifiers for stationary phases as well as solvent systems. Surfactants are used at all the three different concentration levels (be...

2012
Omnia Sarhan Mahmoud M. Ibrahim Mahmoud Mahdy

Glibenclamide is practically insoluble in water and its gastrointestinal absorption is limited by its dissolution rate. Therefore, to enhance the drug dissolution and its hypoglycemic effects, the drug was formulated in different microemulsion systems and in vitro/in vivo evaluated. Microemulsion systems were prepared by Water titration method in which surfactants and cosurfactants (S/CoS) were...

Journal: :Molecules 2016
Vianney Díaz-Blancas Dora I Medina Erika Padilla-Ortega Raquel Bortolini-Zavala Melissa Olvera-Romero Gabriel Luna-Bárcenas

Tebuconazole (TBZ) nanoemulsions (NEs) were formulated using a low energy method. TBZ composition directly affected the drop size and surface tension of the NE. Water fraction and the organic-to-surfactant-ratio (RO/S) were evaluated in the range of 1-90 and 1-10 wt %, respectively. The study was carried out with an organic phase (OP) consisting of an acetone/glycerol mixture containing TBZ at ...

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