نتایج جستجو برای: emulsion solvent diffusion method

تعداد نتایج: 1812619  

Journal: : 2022

Objective: In this study, it was aimed to prepare Vancomycin loaded poly(lactic acid-co-glycolic acid) (PLGA) nanoparticles that can be used parenterally in enterococcal infections. Material and Method: the different concentrations of PLGA were nanoparticles. Emulsification-solvent evaporation method preparation particles. Particle size distribution, zeta potential, encapsulation efficiency yie...

Hadi Valizadeh, Jaleh Barar Mitra Jelvehgari, Nasrin Heidari

Objective(s) Theophylline, a xanthenes derivative, is still widely used as an effective bronchodilator in the management of asthmatic patients. It is used both as a prophylactic drug and to prevent acute exacerbations of asthma. The aim of study was to formulate and evaluate effect of the microencapsulation of theophylline loaded nanoparticles on the reduction of burst release. Materials and Me...

2009
Zhenqing Hou Heng Wei Qian Wang Qian Sun Chunxiao Zhou Chuanming Zhan Xiaolong Tang Qiqing Zhang

The classical utilized double emulsion solvent diffusion technique for encapsulating water soluble Mitomycin C (MMC) in PLA nanoparticles suffers from low encapsulation efficiency because of the drug rapid partitioning to the external aqueous phase. In this paper, MMC loaded PLA nanoparticles were prepared by a new single emulsion solvent evaporation method, in which soybean phosphatidylcholine...

Journal: :European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V 2008
Hyejung Mok Tae Gwan Park

Plasmid DNA was encapsulated within poly(d,l-lactic-co-glycolic acid) (PLGA) nanospheres by using polyethylene glycol (PEG) assisted solubilization technique of plasmid DNA in organic solvents. Plasmid DNA was solubilized in an organic solvent mixture composed of 80% methylene chloride and 20% DMSO by producing PEG/DNA nano-complexes having an average diameter less than 100 nm. DNA could be sol...

Journal: :journal of mining and environment 0
h. amani department of mining and metallurgical engineering, yazd university, yazd, iran h. naderi department of mining and metallurgical engineering, yazd university, yazd, iran

gallium extraction from jajarm bayer process liquor (jajarm, iran) was investigated using microemulsions. also the behavior of aluminum was studied as an impurity. kelex100 (4-ethyl, 1-methyl, 7-octyl, 8-hydroxyquinoleine), iso-decanol and n-butanol, and kerosene were used as the surfactant, co-surfactant, and oil phase, respectively. ternary phase diagrams were produced using various co-surfac...

Journal: :Drug discoveries & therapeutics 2016
Akihiro Matsumoto Satoshi Murao Michiko Matsumoto Chie Watanabe Masahiro Murakami

The feasibility of fabricating Janus particles based on phase separation between a hard fat and a biocompatible polymer was investigated. The solvent evaporation method used involved preparing an oil-in-water (o/w) emulsion with a mixture of poly (lactic-co-glycolic) acid (PLGA), hard fat, and an organic solvent as the oil phase and a polyvinyl alcohol aqueous solution as the water phase. The J...

Journal: :iranian journal of pharmaceutical research 0
zahra zamani department of animal science, bu-ali sina university daryoush alipour department of animal science, faculty of agriculture, bu-ali sina university hamid reza moghimi school of pharmacy seyed ali reza mortazavi school of pharmacy mostafa saffary school of pharmacy

thymol, an important and advantageous component of many essential oils, has been applied as an antimicrobial agent in animals. to increase the duration of action of this compound in ruminants, it was decided here to prepare a controlled release carrier for thymol. hydroxy propyl methyl cellulose (hpmc) and ethyl cellulose (ec) were used as the matrix polymer here. mixtures of thymol with eight ...

Journal: :research in pharmaceutical sciences 0

the aim of this work was to develop and evaluate a minoxidil foamable emu oil emulsion with the purpose of improving minoxidil permeation into the skin, increasing hair growth , reducing skin irritation, and increasing consumer compliance. minoxidil was dissolved in a solvent system comprising ethanol: glycerin: lactic acid: water (10:20:5:65). the foamable emulsion was prepared by mixing the o...

2016
Wei Li Jan Zaloga Yaping Ding Yufang Liu Christina Janko Monika Pischetsrieder Christoph Alexiou Aldo R. Boccaccini

The promising potential of magnetic polymer microspheres in various biomedical applications has been frequently reported. However, the surface hydrophilicity of superparamagnetic iron oxide nanoparticles (SPIONs) usually leads to poor or even failed encapsulation of SPIONs in hydrophobic polymer microspheres using the emulsion method. In this study, the stability of SPIONs in poly(3-hydroxybuty...

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