Results 31 to 40 of about 8,137 (212)

Electrowetting-Based Microdrop Tensiometer

Langmuir, 2008
We performed electrowetting (EW) contact angle measurements to determine the interfacial tension between aqueous drops laden with various inorganic and organic solutes and various ambient oils. Using low frequency AC voltage, we obtained interfacial tensions from 5 to 72 mJ/m 2, in close agreement with macroscopic tensiometry for drop volumes between ...
Banpurkar, A.G., Nichols, K.P.F., Mugele, F.G.   +2 more
openaire   +3 more sources

Dielectrophoresis-Driven Spreading of Immersed Liquid Droplets [PDF]

, 2014
In recent years electrowetting-on-dielectric (EWOD) has become an effective tool to control partial wetting. EWOD uses the liquid−solid interface as part of a capacitive structure that allows capacitive and interfacial energies to adjust by changes in ...
Adamson A. W., Berge B., Berge B., Brown C. V., Brown C. V., Buehrle J., Carl V. Brown, Cheng C.-C., Chevalliot S., Christophe L. Trabi, Fair R. B., Glen McHale, Hayes R. A., Ivanova N. A., Jones T. B., Lorrain P., McHale G., McHale G., Mugele F., Pohl H. A., Pollack M. G., Quéré D., Russell A., Shirtcliffe N. J., Wong T.-S., Xu S., Yang C.-C., Zhao R.   +27 more
core   +1 more source

Droplet-Based Microfluidic Thermal Management Methods for High Performance Electronic Devices

Micromachines, 2019
Advanced thermal management methods have been the key issues for the rapid development of the electronic industry following Moore’s law. Droplet-based microfluidic cooling technologies are considered as promising solutions to conquer the major ...
Zhibin Yan, Mingliang Jin, Zhengguang Li, Guofu Zhou, Lingling Shui   +4 more
doaj   +1 more source

Honeycomb pattern formation on poly(vinyl chloride) films: electrically-driven microparticle trapping and the effect of drying temperature

Materials Research Express, 2023
This work presents the effect of drying temperature on the formation of poly(vinyl chloride) (PVC) honeycomb microstructures formed by the breath figure technique.
Marco Laurence M Budlayan, Jonathan N Patricio, Gillian Kathryn B Yap, Jose Jesus A Gayosa, Susan D Arco, Jose Mario A Diaz, Raphael A Guerrero   +6 more
doaj   +1 more source

Dielectrowetting Driven Spreading of Droplets [PDF]

, 2011
The wetting of solid surfaces can be modified by altering the surface free energy balance between the solid, liquid, and vapor phases. Here we show that liquid dielectrophoresis induced by nonuniform electric fields can be used to enhance and control the
Brown, Carl, McHale, Glen, Newton, Michael, Sampara, Naresh, Wells, Gary   +4 more
core   +1 more source

Trampolining of Droplets on Hydrophobic Surfaces Using Electrowetting

Micromachines, 2022
Droplet detachment from solid surfaces is an essential part of many industrial processes. Electrowetting is a versatile tool for handling droplets in digital microfluidics, not only on plain surface but also in 3-D manner.
Zhantao Wang, Xiaojuan Liu, Li Wang, Cunlu Zhao, Danfeng Zhou, Jiazheng Wei   +5 more
doaj   +1 more source

Integration of capillary and EWOD technologies for autonomous and low-power consumption micro-analytical systems [PDF]

, 2016
This work presents a miniaturized system combining, on the same microfluidic chip, capillarity and electrowetting-on-dielectric (EWOD) techniques for movement and control of fluids.
Bellini, Enrica, CAPRINI, DAVIDE, CAPUTO, Domenico, DE CESARE, Giampiero, Llorca, Pablo R., LOVECCHIO, NICOLA, NARDECCHIA, MARCO, NASCETTI, Augusto, PETRUCCI, GIULIA   +8 more
core   +1 more source

Design of Multi-DC Overdriving Waveform of Electrowetting Displays for Gray Scale Consistency

Micromachines, 2023
Gray scale consistency in pixels was extremely important for electrowetting displays (EWDs). However, traditional electrowetting display driving waveforms could not obtain a pixel aperture ratio consistency, which led to the occurrence of gray ...
Yijian Xu, Shixiao Li, Ziyang Wang, Heng Zhang, Zikai Li, Bo Xiao, Wei Guo, Linwei Liu, Pengfei Bai   +8 more
doaj   +1 more source

Numerical simulation of the shape of charged drops over a solid surface. [PDF]

, 2010
In this work we study the static shape of charged drops of a conducting fluid placed over a solid substrate, surrounded by a gas, and in absence of gravitational forces.
Fontelos, Marco Antonio, Kindelan Bustelo, Ultano   +1 more
core   +2 more sources

Actuation of Flexible Membranes via Capillary Force: Single-Active-Surface Experiments

Micromachines, 2018
Conventional approaches to microscale actuation, such as electrostatic, have difficulty in achieving large motion at moderate voltages. Recently, actuators relying on the active control of capillary pressure have been demonstrated, with the pressure ...
Christina Barth, Carl Knospe
doaj   +1 more source