Oil-mediated high-throughput generation and sorting of water-in-water droplets

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Hydrophilic PDMS microchannels for high-throughput formation of oil-in-water microdroplets and water-in-oil-in-water double emulsions.

Here we present a novel surface modification method based on the sequential layer-by-layer deposition of polyelectrolytes yielding hydrophilic microchannels in PDMS-based microfluidic devices. The coatings are long-term stable and allow for the generation of monodisperse oil-in-water microdroplets even several months after the channel surface treatment. Due to the robustness of the polyelectrol...

Bubble-induced transport of oil droplets in water.

An oil droplet wrapped with poly(N-isopropylacrylamide) grafted nanoparticles can ascend or descend in water repeatedly by simply tuning the temperature of water above or below 33 °C, while avoiding the use of sophisticated equipment and complex nanostructures.

Microfluidic generation of monodisperse ultra-low interfacial tension oil droplets in water

Oil droplets in water as a primitive life form?

The origin of life is one the most fascinating problems of biology. The classic Miller-Urey experiment was carried out almost 60 years ago. In the experiment sparks were shot through primordial atmosphere consisting of methane, ammonia, hydrogen and water and the outcome was many of the aminoacids essential for life. The findings raised the optimism that the key to the understanding of the orig...