droplet – Page 2 – TechConnect Briefs

Molecular Dynamics Simulations of Nano-Droplet Wetting on a Solid Surface

Sedighi N., Murad S., Aggarwal S.K., University of Illinois at Chicago, US

An initially spherical liquid droplet is located between two moving parallel surfaces (or walls). The shape of the droplet in contact with the solid surfaces is studied by applying continues pressure to the moving walls. [...]

Droplet-based Segregation and Extraction of Concentrated Samples

Buie C.R., Buckley P., Hamilton J., Ness K.D., Rose K.A., Lawrence Livermore National Laboratory, US

Incorporating microfluidic-based technologies into bio-analytical instruments has many benefits including reduced sample consumption, faster response times, and improved sensitivity. To achieve these benefits, microfluidic analysis often requires sample concentration and separation techniques, e.g., isotachophoresis or [...]

Superhydrophobic Nanowire Surfaces for Drop Movement Using Magnetic Fields

Egatz-Gomez A., Melle S., García A.A., Lindsay S., Rubio M.A., Domínguez P., Picraux T., Taraci J., Clement T., Hayes M., Gust D., Arizona State University, US

We present a novel method to control water drop movement on superhydrophobic surfaces through magnetic fields. Water drops with paramagnetic particles can be moved on fractal Si-nanowire superhydrophobic surfaces at high speeds by displacing a [...]

Liquid Disintegration: Investigation of Physics by Simulation

Zeng J., Korsmeyer T., Coventor, Inc., US

Liquid disintegration includes the processes of formation of droplets and droplet fission. It is important in inkjet printing and in the miniaturization of biochemical analytical devices. This paper reports on an investigation of the mechanism [...]

Modeling of the Kinetics of Capture of Pathogens Enhanced by a Marangoni Flow

Pham P., Achard J.L., Berthier J., Ginot F., CEA-LETI, FR

Binding of targetted biomolecules, pathogens or analytes on a reactive surface is commonly used for biodiagnostic systems. However the process is slow and inefficient if one relies only on molecular diffusion to transfer the analytes [...]

Modelling Free Jet Ejection on a System Level – An approach for microfluidics

Koltay P., Moosmann C., Litterst C., Streule W., Birkenmeier B., Zengerle R., University of Freiburg, DE

Fast simulation of complex microfluidic systems requires consideration of network simulations based on lumped models as an alternative to standard computational fluid dynamic (CDF) simulations. In this paper we describe an analytical model of an [...]