Surfactants are employed in microfluidic systems not just for drop stabilisation, but also to
study local phenomena in industrial processes. On the scale of a single drop, these include …

Surfactant mass transport towards an interface plays a critical role during formation of
emulsions, foams and in industrial processes where two immiscible phases coexist. The …

Surfactants–molecules and particles that preferentially adsorb to fluid interfaces–play a
ubiquitous role in the fluids of industry, of nature and of life. Since most surfactants cannot be …

The deposition of material at the edge of evaporating droplets, known as the 'coffee ring
effect', is caused by a radially outward capillary flow. This phenomenon is common to a wide …

The dynamics of surfactant interfacial layers was first discussed more than a century ago. In
1946 the most important work by Ward and Tordai was published which is still the theoretical …

Liquid–liquid emulsion systems are usually stabilized by additives, known as surfactants,
which can be observed in various environments and applications such as oily bilgewater …

We designed, developed and characterized a microfluidic method for the measurement of
surfactant adsorption kinetics via interfacial tensiometry on a microfluidic chip. The principle …

The paper discusses adsorption and desorption energy barriers for macroscopic interfaces
of surfactant solutions. Literature data suggest that adsorption and desorption are not always …

Coalescence of dispersed micrometer-scale droplets is an essential step toward the
separation of emulsions. The thin film between droplets must form, drain, and rupture for …

Dynamic interfacial tension was studied experimentally during drop formation in a flow-
focusing microchannel. A low viscosity silicone oil (4.6 mPa s) was the continuous phase …