نتایج جستجو برای: reverse microemulsion droplet

تعداد نتایج: 129331  

Journal: :Chemical communications 2015
X Ma B Wang E Xhafa K Sun E Nikolla

This study highlights the synthesis of shape-controlled La2NiO(4+δ) nanostructures using a reverse microemulsion method. We report that surfactant to water mass ratio plays a key role in controlling the shape of the nanostructures. These nanostructures show a strong dependence of their oxygen transport properties on their geometries.

Journal: :Nanoscale 2012
F Giuntini F Dumoulin R Daly V Ahsen E M Scanlan A S P Lavado J W Aylott G A Rosser A Beeby R W Boyle

Polyacrylamide nanoparticles bearing two orthogonal reactive functionalities were prepared by reverse microemulsion polymerisation. Water-soluble photosensitisers and peptide or carbohydrate moieties were sequentially attached to the new nanospecies by orthogonal conjugations based on copper-catalysed azide-alkyne cycloaddition and isothiocyanate chemistry.

Journal: :Physical review letters 2001
V K Vanag I R Epstein

Turing structures, standing waves, oscillatory clusters, and accelerating waves have been found in the spatially extended Belousov-Zhabotinsky system dispersed in water droplets of a reverse AOT microemulsion. The variety of patterns is determined by the tunable microstructure of the medium, i.e., by the concentration and size of water droplets. We propose a simple model to describe this system.

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...

Insulin resistance is caused by the inability of target tissues to respond to insulin. Bay leaf (Eugenia polyantha Wight) extract has been used for the treatment of insulin-resistant type-2 diabetes mellitus (IRDM), but it has low solubility and bioavailability. To overcome these problems, chloroform extract of bay leaves was formulated into a self-microemulsifying drug delivery system (SMEDDS)...

Journal: :Nanoscale 2015
Cheng-Han Lin Jen-Hsuan Chang Yi-Qi Yeh Si-Han Wu Yi-Hsin Liu Chung-Yuan Mou

Uniform hollow silica nanospheres (HSNs) synthesized with reverse microemulsion have great application potential as nanoreactors because enzymes or nanocatalysts can be easily encapsulated de novo in synthesis. Water-in-oil (w/o) reverse microemulsions comprising the polymeric surfactant polyoxyethylene (5) isooctylphenyl ether (Igepal CA-520), ammonia and water in a continuous oil phase (alkan...

Journal: :Journal of colloid and interface science 2011
Habiba Nazir Piping Lv Lianyan Wang Guoping Lian Shiping Zhu Guanghui Ma

Emulsions are commonly used in foods, pharmaceuticals and home-personal-care products. For emulsion based products, it is highly desirable to control the droplet size distribution to improve storage stability, appearance and in-use property. We report preparation of uniform-sized silicone oil microemulsions with different droplets diameters (1.4-40.0 μm) using SPG membrane emulsification techni...

Journal: :The journal of physical chemistry. B 2005
Bin Xu Gary W Lynn Ji Guo Yuri B Melnichenko George D Wignall James B McClain Joseph M Desimone Charles S Johnson

(1)H NMR relaxation and diffusion studies were performed on water-in-CO(2) (W/C) microemulsion systems formed with phosphorus fluorosurfactants of bis[2-(F-hexyl)ethyl] phosphate salts (DiF(8)), having different counterions (Na(+), NH(4)(+), N(CH(3))(4)(+)) by means of high-pressure in situ NMR. Water has a low solubility in CO(2) and is mainly solubilized by the microemulsion droplets formed w...

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