نتایج جستجو برای: surfactant type tween 60 and 80

تعداد نتایج: 17068131  

Journal: :Acta poloniae pharmaceutica 2014
Haroon K Syed Kok K Peh

The objective of this study was to select appropriate surfactants or blends of surfactants and oil to study the ternary phase diagram behavior and identify various phases obtained from the oil and surfactant/surfactant mixture combinations of different HLB. The phases include conventional emulsion, gel/viscous and transparent/translucent microemulsion. Pseudoternary phase diagrams of water, oil...

2013
S. K. Prajapati Shailendra Kumar Ajit Singh Ankush Singh

In the present work, levofloxacin based microemulsion was developed and its usefulness as topical drug carrier system for anti bacterial activity was investigated. Microemulsion was prepared by phase titration method using oleic acid as oil phase, tween-60 as surfactant and isopropyl alcohol as co-surfactant. Five different formulations were formulated with various amount of the oil, water and ...

This work aimed to prepare a nanoemulsion preparation containing budesonide and assess its aerodynamic behavior in comparison with suspension of budesonide. In-vitro aerodynamic performance of the corresponding micellar solution (ie. nanoemulsion preparation without oil) was investigated too. Nanoemulsions of almond oil containing budesonide, as a hydrophobic model drug molecule, were prepared ...

Journal: :Processes 2023

The effects of emulsification variables, such as surfactant type and heating/cooling emulsion processes, on the characteristics silicone oil’s emulsions prepared by phase inversion temperature method were investigated in this study. water-in-oil (W/O) have been widely applied to enhance burning efficiency reduce both pollutant emissions fuel consumption. oil was emulsified with de-ionized water...

A biocompatible microemulsion system comprising of isopropyl myristate (IPM) as oil, tween 80 as a non-ionic surfactant and isobuthanol as co-surfactant was studied experimentally at 298.15 K. The pseudo-ternary phase diagram for the microemulsion system has been delineated at different surfactant to co-surfactant mass ratio of 1:1, 2.4:1 and 4:1. Some physico-chemical properties such as densit...

Journal: :international journal of environmental research 0
k. laszlova slovak technical university, faculty of chemical and food technology, institute of biotechnology k. dercova slovak technical university, faculty of chemical and food technology, institute of biotechnology h. horvathova slovak technical university, faculty of chemical and food technology, institute of biotechnology s. murinova water research institute, national water reference laboratory, bratislava j. skarba slovak technical university, faculty of chemical and food technology, institute of biotechnology h. dudasova slovak academy of sciences, institute of chemistry, bratislava

the prospects of using the biostimulation and bioaugmentation treatment for the removal of the polychlorinated biphenyl (pcbs) from contaminated sediment collected from the sewage canal in the surroundings of a former pcb manufacturing plant in slovakia is described. the eleven bacterial strains isolated in our previous work from sewage strážsky canal sediments were able to aerobically degrade ...

2017

Our study includes removal of Cr(VI) by using mixed surfactants (Non-ionic: Cationic). A common cationic surfactant Cetyl trimethyl ammonium bromide(CTAB) with two different nonionic surfactant Triton X-100 and Tween-80 were used to remove Cr(VI) by micellar enhanced ultrafiltration technique.The effect of parameters such as initial feed metal ion concentration, pH and filtration time on % Reje...

Journal: :Biological & pharmaceutical bulletin 2008
Pengwei Zhang Wenyuan Gao Li Zhang Li Chen Qufei Shen Xiaohui Wang Ying Cui

Topical microemulsion of capsaicin without surfactant was developed in this study. In these systems, the oil phase was benzyl alcohol, and the cosurfactant was propylene glycol and ethanol. The drop-size of the systems was measured by dynamic light scattering method in order to distinguish true solution from microemulsion. The transdermal performance of the microemulsions was evaluated in vitro...

2007
N. Vasudevan Jayashree

*Corresponding author, Email: [email protected] Tel./Fax: +91-9884787202 ABSTRACT: Endosulfan, a chlorinated cyclodiene insecticide is of environmental concern because of its apparent persistence and toxicity to many non target organisms. Endosulfan is hydrophobic and persists in soil for more than a year. To overcome the problem of hydrophobic and limited availability, surfactants play a major...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

here, we report analysis of in vitro and in vivo drug release from an in situ formulation consisting of triamcinolone acetonide (tr) and poly(d,l-lactide-co-glycolide) (plga) and the additives glycofurol and hydroxyapatite nanoparticles (ha). we found that these additives enhanced drug release rate. we used the taguchi method to predict optimum formulation variables to minimise the initial burs...

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