Efficient mixing strategies in a fluid involve generation of multi-scale flows which are strongly suppressed in highly viscous systems. In this work, we report a novel form of multi-scale flow, driven by an external electric field, in a highly viscous (η∼ 1 Pa s) oil-in-oil emulsion system consisting of micron-size droplets. This electro-hydrodynamic flow leads to dynamical organization at spat...

Here, we prepared hydrophobic cryogel particles with monolithic supermacropores based on poly-trimethylolpropane trimethacrylate (pTrim) by combining the inverse Leidenfrost effect and cryo-polymerization technique. The adopting this method demonstrated separation of stabilized O/W emulsion surfactant. were characterized in terms macroscopic shape porous structure. It was found that had a narro...

there are numerous problems for using essential oil due to its low solubility in water, high vapor pressure and chemical and physical instability. use of nano-emulsions is a good idea for decreasing side effect of the essential oils and enhance their efficiency as well as delivery to hot spot. in addition, nano-emulsion system make smaller size particles and increase stability and shelf-life of...

Efavirenz is a drug with an absorption window. Its oral bioavailability is 40-50%. The aim of this work was to formulate solid self-emulsifying drug delivery system to improve the solubility and bioavailability of efavirenz. Solubility of Efavirenz was determined in various vehicles like oils, surfactants and co surfactants. Which, upon dilution with aqueous media, spontaneously form fine oil i...

Esterification of starch was carried out to expand the usefulness of starch for a myriad of industrial applications. Lipase B from Candida antarctica, immobilized on macroporous acrylic resin (Novozym 435), was used for starch esterification in two reaction systems: micro-solvent system and solvent-free system. The esterification of corn starch with palmitic acid in the solvent-free system and ...

Continuous crystallization of lipid nanoparticles, carrying bioactive compounds, is employed as model system for food products to demonstrate benefits, application possibilities and challenges of microscale process engineering. It could be shown, that high and well-defined cooling rates (up to 104 times higher compared to the standard batch process) can be achieved by using a micro heat exchang...

Here we present the experimental findings of research into integral characteristics secondary droplets produced from micro-explosive fragmentation two types initial droplets. Both are based on water and tetradecane: an emulsion droplet a two-component immiscible with as core tetradecane envelope. We study threshold (critical) conditions for micro-explosion substrate heated up to 550 °C. In cour...