Now showing items 1-6 of 6
A microfluidic sensor for dynamic surface tension measurement
A novel microfluidic sensor for measuring dynamic gas-liquid interfacial tension is reported. The device consists of a microfluidic chip with a microchannel network and an optical detection system. The sample is introduced ...
Interface control of pressure-driven two-fluid flow in microchannels using electroosmosis
This paper presents an experimental investigation of the pressure-driven two-fluid flow in microchannels with electroosmosis effect. Two fluids, aqueous NaCl solution and aqueous glycerol, were introduced by syringe pumps ...
Fabrication and experimental characterization of nanochannels
Nanofluidics is the science and technology involving a fluid flowing in or around structures with a least one dimension in the nanoscale, which is defined as the range from 1 nm to 100 nm. In this paper, we present the ...
Analysis of capillary filling in nanochannels with electroviscous effects
Capillary filling is the key phenomenon in planar chromatography techniques such as paper chromatography and thin layer chromatography. Recent advances in micro/nanotechnologies allow the fabrication of nanoscale structures ...
A method for simultaneously determining the zeta potentials of the channel surface and the tracer particles using microparticle image velocimetry technique
The zeta potentials of channel surfaces and tracer particles are of importance to the design of electrokinetic microfluidic devices, the characterization of channel materials, and the quantification of the microparticle ...
Investigation of active interface control of pressure driven two-fluid flow in microchannels
We report a novel concept to control the interface location of a pressure-driven multi-phase flow in a microchannel by using electroosmotic flow effects. This concept has potential applications in flow switching and cell ...