نتایج جستجو برای: Double-chain emulsifier

تعداد نتایج: 530387  

2015
Prapaporn Boonme Chalida Boonthongchuay Thanaporn Amnuaikit Wibul Wongpoowarak

INTRODUCTION Emulsion formulations are one of hard tasks since there are a lot of emulsifiers which can be selected. To save time in emulsifier selection, the hydrophile-lipohile balance (HLB) system has been used for choosing proper emulsifiers. Lipophilic compounds (oils, fats, and waxes) have an individual value called “required HLB”. An emulsifier or blend of emulsifiers, having an HLB equa...

A Box-Behnken design with three replicates was used for preparation and evaluation of Eudragit vancomycin (VCM) nanoparticles prepared by double emulsion. The purpose of this work was to optimize VCM nanoparticles to improve the physicochemical properties. Nanoparticles were formed by using W1/O/W2 double-emulsion solvent evaporation method using Eudragit RS as a retardant material. Full factor...

A Box-Behnken design with three replicates was used for preparation and evaluation of Eudragit vancomycin (VCM) nanoparticles prepared by double emulsion. The purpose of this work was to optimize VCM nanoparticles to improve the physicochemical properties. Nanoparticles were formed by using W1/O/W2 double-emulsion solvent evaporation method using Eudragit RS as a retardant material. Full factor...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

به طور کلی در فرآیندهای مارکوف ارگودیک دو بعدی یافتن فرم بسته توزیع ایستا، تنها برای حالات خیلی خاص امکان پذیر است. با توجه به این مشکل و نیز با توجه به اهمیت توزیع ایستا، بررسی و مطالعه رفتار مجانبی توزیع ایستای این فرآیندها مورد توجه قرار گرفته است. زنجیر قدم زدن تصادفی دو بعدی که در برخی متون به آن، فرآیند qbd دو طرفه نیز می گویند، یکی از این فرآیندها است. یک فرآیند qbd زمان گسسته یک زنجیر م...

2012
Badir Delf Loveymi Mitra Jelvehgari Parvin Zakeri-Milani Hadi Valizadeh

A Box-Behnken design with three replicates was used for preparation and evaluation of Eudragit vancomycin (VCM) nanoparticles prepared by double emulsion. The purpose of this work was to optimize VCM nanoparticles to improve the physicochemical properties. Nanoparticles were formed by using W1/O/W2 double-emulsion solvent evaporation method using Eudragit RS as a retardant material. Full factor...

Journal: :the iranian journal of pharmaceutical research 0
badir delf loveymi faculty of pharmacy, tabriz university of medical sciences, tabriz, iran. biotechnology research center, tabriz university of medical sciences, tabriz, iran. parvin zakeri-milani faculty of pharmacy, tabriz university of medical sciences, tabriz, iran. liver and gastrointestinal diseases research center, tabriz university of medical sciences, tabriz, iran. hadi valizadeh faculty of pharmacy, tabriz university of medical sciences, tabriz, iran. research center for pharmaceutical nanotechnology, tabriz university of medical sciences, tabriz, iran.

a box-behnken design with three replicates was used for preparation and evaluation of eudragit vancomycin (vcm) nanoparticles prepared by double emulsion. the purpose of this work was to optimize vcm nanoparticles to improve the physicochemical properties. nanoparticles were formed by using w1/o/w2 double-emulsion solvent evaporation method using eudragit rs as a retardant material. full factor...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2014
Yu Lu Ying-Ying Wang Nan Yang Dan Zhang Feng-Yi Zhang Hai-Tao Gao Wen-Ting Rong Shu-Qin Yu Qian Xu

The aim of the present research was to explore whether food emulsifier polysorbate 80 can enhance the absorption of di-(2-ethylhexyl) phthalate (DEHP) and its possible mechanism. We established the high-performance liquid chromatography (HPLC) method for detecting DEHP and its major metabolite, mono-ethylhexyl phthalate (MEHP) in rat plasma, and then examined the toxicokinetic and bioavailabili...

2016
Muhammad Tahir Abbas Adeel Hassan Abdur Rehman

A trial was conducted to evaluate the effect of fat emulsifier on fat utilization in broiler chickens using 240 days old chicks which were divided into 24 replicates in a 3×2 factorial arrangement under Completely Randomized Design (CRD). Experimental diets were formulated using 1, 2 or 3% fat with or without fat emulsifier (Lecithin) at 350 mg kgG1. The trial lasted for 35 days and was divided...

Journal: :Applied and environmental microbiology 1979
E Rosenberg A Zuckerberg C Rubinovitz D L Gutnick

The oil-degrading Arthrobacter sp. RAG-1 produced an extracellular nondialyzable emulsifying agent when grown on hexadecane, ethanol, or acetate medium. The emulsifier was prepared by two procedures: (i) heptane extraction of the cell-free culture medium and (ii) precipitation with ammonium sulfate. A convenient assay was developed for measurement of emulsifier concentrations between 3 and 75 m...

2014
Dustin L. Cooper Sam Harirforoosh

Polymer based nanoparticle formulations have been shown to increase drug bioavailability and/or reduce drug adverse effects. Nonsteroidal anti-inflammatory drugs (e.g. celecoxib) reduce prostaglandin synthesis and cause side effects such as gastrointestinal and renal complications. The aim of this study was to formulate celecoxib entrapped poly lactide-co-glycolide based nanoparticles through a...

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