نتایج جستجو برای: microemulsions

تعداد نتایج: 977  

Background and purpose: Tadalafil has gained wide clinical acceptance in treatment of erectile dysfunction due to its long treatment window and lower potential for visual impairment. Transdermal drug delivery prevents systemic elimination, drug-drug and food-drug interactions, and reduces side effects by reducing the dose of the drug. The aim of this study was to evaluate the effect of microemu...

Journal: :Ankara Universitesi Eczacilik Fakultesi Dergisi 1997

2013
Carlos A. Carrillo Daniel Saloni Orlando J. Rojas

The ability of microemulsions to overcome the complex capillary structure of wood is revealed in relation to its composition and formulation. The oil phase (limonene in this study) of O/W microemulsions is found to be critical for effective flooding. The type of amphiphile molecule used, including sodium lignosulfonate and alkyl polyglucosides as well as reference sodium dodecylsulfate and sili...

2014
Xiaoming Pan XIAOMING PAN Susan C. Roberts Paul L. Dubin

WATER-IN-OIL MICROEMULSIONS: COUNTERION EFFECTS IN AOT SYSTEMS AND NEW FLUOROCARBON-BASED MICROEMULSION GELS FEBRUARY 2010 XIAOMING PAN, B.S., TSINGHUA UNIVERSITY Ph.D., UNIVERSITY OF MASSACHUSETTS AMHERST Directed by: Professor Surita R. Bhatia Microemulsions have important applications in various industries, including enhanced oil recovery, reactions, separations, drug delivery, cosmetics and...

Journal: :Journal of colloid and interface science 2001
Hanna Härelind Ingelsten Rahul Bagwe Anders Palmqvist Magnus Skoglundh Christer Svanberg Krister Holmberg Dinesh O. Shah

The effect of surfactant type and temperature on the kinetics of the formation of platinum nanoparticles in water-in-oil microemulsions by chemical reduction of PtCl(6)(2-) were examined with time-resolved UV-vis absorption spectroscopy. The surfactants used were poly(ethylene glycol)monododecyl ethers (C(12)E(4), C(12)E(5), C(12)E(6)), sodium bis(2-ethylhexyl)sulphosuccinate (AOT), and mixture...

2013
Anayatollah Salimi Behzad Sharif Makhmal Zadeh Eskandar Moghimipour

OBJECTIVE(S) The objective of this study was to design a topical microemulsion of Vit B12 and to study the correlation between internal structure and physicochemical properties of the microemulsions. Microemulsions are thermodynamically stable mixtures of water, oil, surfactants and usually cosurfactants with several advantages for topical and transdermal drug delivery. The formulation of micro...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2012
Livia A Moreira Abbas Firoozabadi

Microemulsions are nanoheterogeneous, thermodynamically stable, spontaneously forming mixtures of oil and water by means of surfactants, with or without cosurfactants. The pledge to use small volumes of amphiphile molecules compared to large amounts of bulk phase modifiers in a variety of chemical and industrial processes, from enhanced oil recovery to biotechnology, fosters continuous investig...

2012
Jadupati Malakar Amit Kumar Nayak Aalok Basu

Ondansetron HCl delivery through oral route suffers due to its low bioavailability due to first-pass metabolism. Therefore, the microemulsion-based transdermal delivery may be a better substitute for it. The pseudoternary phase diagrams were constructed to determine compositions of microemulsions, and ondansetron HCl microemulsions for transdermal delivery were developed using isopropyl myrista...

Journal: :MATEC web of conferences 2023

Membrane filtration performances can be enhanced by the deposition of a selective thin layer on surface porous substrate. Our simulation focus nanometric bicontinuous microemulsions onto hollow-fibre membranes and its polymerisation using UV modules. To that end, laws governing linear liquids have been extended to study microemulsions. highlights difficulty depositing liquid coating fibre witho...

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...

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