microfluidics – Page 3 – TechConnect Briefs

Electrowetting on screen printed paper based substrate

Yafia M., Najjaran H., University of British Columbia, CA

In this work, electrowetting on dielectric (EWOD) is performed on a paper based substrate. Electrode patterns are fabricated on a paper substrate using screen printing. Conventional photolithography fabrication techniques are replaced by screen printing conductive [...]

In vitro biosensing based on magnetically induced motion of magnetic nanoparticles

Dangl A., Kokkinis G., Keplinger F., Giouroudi I., Vienna University of Technology, AT

A method for in-vitro detection of bioanalyte using conductive microstructures to accelerate magnetic nanoparticles (MAPs) in an integrated microfluidic system is presented. The fundamental idea behind the elaboration of such a biosensing system is that [...]

From Microfluidics for Biotechnology to Biomicrofluidics

Berthier J., CEA-LETI, FR

In the biotechnology science, microfluidics is constantly adapting to the goals of biologists. Once a precise goal has been identified, biotechnology is searching for the best approaches to meet the demand of biologists. These approaches [...]

An Integrated Optofluidic System for Two-Dimensional Focus Point Control

Chao K.-S., Lin M.-S., Yang R-J, National Cheng Kung University, TW

Recently, optical methods have been widely used for biological and chemical detection in microﬂuidic or lab-on-a-chip systems. Precise adjustment of the optical path among multiple integrated components, such as flow cytometers, optical tweezers, and molecule [...]

Fabrication of Microelectrodes on Polyester Membranes for Dielectrophoretic Cell Capture

Hanke C., Dittrich P.S., Reyes D.R., National Institute of Standards and Technology, US

We present a new system for cell capturing on porous polyester (PET) membranes using dielectrophoretic forces. For the first time gold microelectrodes were fabricated on PET membranes using conventional photolithographic techniques. Their characterization revealed no [...]

An Integrated Microfluidic Real-Time PCR System for Pathogen Detection

Zhu L., Li L., Li Z., Lin F., Liu Y., An D., Wang M., Wang Y.K., Zhang G., Zhang L., Wang M., Wang Y.K., Li L., Li Z., Lin F., Liu Y., Liu Y., Zhang G., Zhang L., Lin F., University of Manitoba, CA

The development of microfluidics-based PCR for rapid genetic analysis particularly pathogen detection is an emerging research field. Recent advancement of microfluidics critically enabled the development of various on-chip PCR systems to realize its apparent advantages [...]

Static and Dynamic Properties of the Electrical Double Layer Near Amorphous Silica: Relevance for Device Design

Shi B., Shin Y.K., Zhang H., Hassanali A., Shin Y.K., Knight C., Singer S.J., Ohio State University, US

Amorphous silica (“glass”) is commonly used to fabricate micro- and nano-fluidic devices. Using an atomistic model, we have studied the static and dynamic properties of the electrical double layer near the water/amorphous silica interface. The [...]

A Pressure Controlled Pinched Flow Fractionation Device for Continuous Particle Separation

Trosborg J., Christiansen T.L., Technical University of Denmark, DK

A demonstration of a pinched flow fractionation device that enables pressure controlled tuning of the separation range of particles. This makes the device ready for easy and cheap mass-production, maintaining great flexibility, and rendering the [...]

Functional Performance of Microfluidic On-Board Pumps and Valves with Various Actuation Protocols

Podczeviensky J., McDowell J., Levine L., ALine, Inc., US

Microfluidics are critical to the development of high sensitivity, multiplexed, and quantitative point-of-care diagnostic products that promise to improve the quality of healthcare while lowering costs. Fundamental to a shift from qualitative screening tests to [...]

Fabrication of microfluidic system for micro direct alcohol fuel cell: deep X-ray lithography of three-dimensional microstructures on a stainless steel

Yunphuttha C., Pattanakul R., Porntheeraphat S., Wongchaisuwat A., Viravathana P., Kasetsart University, TH

Micro direct alcohol fuel cell, a type of micro fuel cell, is an alternative energy resource which generates electricity without fuel combusting. The micro fuel cell normally contains three parts of microchannels, electrodes, and membrane. [...]