نتایج جستجو برای: double emulsification solvent evaporation technique

تعداد نتایج: 906758  

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تهران 1371

ایندومتاسین 1-(p-chlorobanzoyl)-5-methoxy-2-methyl indole-3-acatic acid یک داروی ضد التهاب غیر استروئیدی (nsaid) است . نیمه عمر آن 4ˆ5 ساعت بوده و حداکثر 200 میلی گرم از آن در روز در دوزهای منقسم موارد مصرف متعددی دارد و از جمله در درمان بیماریهایی مانند آرتریت روماتوئید، استئوآرتریت و نقرس بکار میرود. طولانی بودن مدت مصرف دارو و بروز عوارض جانبی گوارشی از مشکلاتی هستند که بیماران مصرف کننده با...

2014
M. Tabbakhian F. Hasanzadeh N. Tavakoli Z. Jamshidian

Glibenclamide (GLIB) is a poorly soluble drug with formulation-dependent bioavailability. Therefore, we attempted in this study to improve GLIB dissolution rate by preparing drug solid dispersions by solvent evaporation (SE) and supercritical fluid solvent-antisolvent techniques (SCF-SAS). A D-optimal mixture design was used to investigate the effects of different ratios of HPMCE5 (50-100%), PE...

Journal: :Brazilian Journal of Pharmaceutical Sciences 2022

This study aimed to develop promising and innovative mucoadhesive gel systems containing dexamethasone-loaded nanoparticle increase the effectiveness of treatment for oral precancerous lesions reduce side effects. In this respect, a formulation was prepared by using emulsification/solvent evaporation method. The has high zeta potential (-10.3±0.5 mV), low particle size (218.42±2.1), polydispers...

Journal: :Acta biomaterialia 2012
Wei Li Lee Pattara-orn Yu Meiju Hong Effendi Widjaja Say Chye Joachim Loo

Triple-layered microparticles comprising poly(D,L-lactide-co-glycolide, 50:50) (PLGA), poly(L-lactide) (PLLA) and poly(ethylene-co-vinyl acetate, 40 wt.% vinyl acetate) (EVA) were fabricated using a one-step solvent evaporation technique, with ibuprofen drug localized in the EVA core. The aim of this study was to investigate the drug release profiles of these triple-layered microparticles in co...

2013
Nur Nabilah Shahidan Ruixue Liu Sineenat Thaiboonrod Cameron Alexander Kevin M. Shakesheff Brian R. Saunders

We demonstrate a new, scalable, simple, and generally applicable two-step method to prepare hollow colloidosomes. First, a high volume fraction oil-in-water emulsion was prepared. The oil phase consisted of CH2Cl2 containing a hydrophobic structural polymer, such as polycaprolactone (PCL) or polystyrene (PS), which was fed into the water phase. The water phase contained poly(vinylalcohol), poly...

2009
Santhosh Ayalur-Karunakaran Siegfried Stapf

Poly (Dimethyl siloxane) thin films were prepared by solvent evaporation method in porous alumina hosts. The thickness of these layers ranged from multilayer to sub-monolayer. Different NMR methods (FFC relaxometry, transverse relaxation, H Double quantum NMR) were applied to study the dynamics and order in these thin films. We found that dynamic restrictions and order increased with decreasing...

Journal: :Pharma innovation 2023

Many oil seeds contain the necessary fatty acids i.e polyunsaturated (PUFAs) like omega-3 and omega-6. These PUFAs are oxidation-prone. Before being applied to or added as a value food products, need be protected, hence this is accomplished by microencapsulation. This review provides comprehensive overview of different types PUFA rich their benefits in human health. Health benefit pufa include ...

Journal: :iranian journal of pharmaceutical sciences 0
n suresh assistant professor, department of pharmaceutics, sri k.v. college of pharmacy, chickballapur, karnataka, india bs ashok kumar department of pharmacognosy as kiran department of pharmaceutical chemistry n narayana swamy department of pharmaceutical chemistry d sheshadri shaker department of pharmacology, sri k.v. college of pharmacy, chickballapur, karnataka, india kv satish department of pharmaceutics

an oral suspension could a suitable dosage form for the geriatric patients. the calcium alginate coated ion exchange resinate of propranolol hydrochloride were prepared using amberlite ir-120 by solvent evaporation. microcapsules of propranolol hydrochloride resinate were prepared by solvent evaporation technique,the suspensions were prepared by using deionised water as the vehicle. methyl cell...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Yu Gu Zhaoxi Chen Nikolay Borodinov Igor Luzinov Fei Peng Konstantin G Kornev

Precursors derived from the hydrolysis of organic or inorganic salts have been widely used to produce ceramic coatings for a broad variety of applications. When applying the liquid precursors to the substrates, it is extremely challenging to control the film uniformity and homogeneity. The rate of solvent evaporation at different locations is different, causing the viscosity variation and flows...

ژورنال: مجله دندانپزشکی 2013
داوری, عبدالرحیم , محمدی, نجمه پور , نسب, مجید موسوی , کاظمی, علیرضا دانش ,

  Background and Aims: Different adhesives with different solvents may have different solvent evaporation rates. The purpose of this study was to evaluate the solvent evaporation in the self etch and total etch adhesive in different air drying times.   Materials and Methods: Five adhesives were used in this study: Excite, Prime & Bond NT, UNO, Single Bond, SE Bond Primer. Twelve drops of each a...

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