Sensors, MEMS, Electronics – Page 180

Fixed-Valve Micropump Simulation and Optimization

Forster F.K., Walter T., University of Washington, US

Membrane pumps with fixed-geometry valves are ex- tremely simple to fabricate and have the potential to be highly reliable and cheap due to their simplicity. We have recently implemented a means of optimizing design parameters [...]

Chaotic mixing using periodic and aperiodic sequences of mixing protocols in a micromixer

Kang T.G., Singh M.K., Kwon T.H., Anderson P.D., Eindhoven University of Technology, NL

We conducted a numerical study on mixing in a barrier embedded micromixer with an emphasis on the effect of periodic and aperiodic sequences of mixing protocols on mixing performance. A mapping method was employed to [...]

Microfluidic Valve-Controllable Magnetic Bead Receptacle: A Novel Platform for DNA Sequencing

Esfandyarpour H., Davis R.W., Stanford Genome Technology Center, US

In this paper, a novel and effective microfluidic platform for DNA Sequencing, particularly for sequencing-by-synthesis methods such as Pyrosequencing, based on valve-controllable PDMS channel system contains micrometer magnetic beads . Additionally, the proposed picoliter micofluidic [...]

Filtration and emulsification with nanoengineered membranes

van Rijn C.J.M., Nijdam W., University of Wageningen, NL

With microengineering techniques it is possible to manufacture very precise perforated membranes. The pores, which are well defined by photolithographic methods, allow accurate separation of particles by size. The membrane thickness is usually smaller than [...]

A platform for assembly of electro-hydrodynamic microfluidics

Kumar A., Khusid B., James C., Acrivos A., New Jersey Institute of Technology, US

Current approaches to build electro-hydrodynamic microfluidic devices involve the employment of standard photolithography methods in clean room environment [1] or/and the use of polymer-based manufacturing techniques [2]. Both of them require multiple steps to fabricate [...]

Fabrication and Application in Microfluidics of Novel Transparent Preceramic Polymer Derived Glass Microcannels and Substrates

Kim D-P, Park J.H., Perumal J., Chungnam National University, KR

Generally, glass-based microfluidics with the chemical inertness and thermal stability have widely used, while plastics including PDMS have showed their convenience in fabricating microfluidic devices. Therefore, one can simply anticipate that it must be desirable [...]

Levitation of a Charged Microdroplet

Schildknecht A., Hofer E.P., University of Ulm, DE

A new method for levitation of a charged microdroplet is presented. The feedback-control consists of high-speed camera, flatness based follow-up controller and high-voltage amplifier.

Pattern Characteristic by Electrostatic Drop-On-Demand Ink-jet Printing Using Capillary Inkjet Head System

Choi J., Son S.U., Kim Y., Lee S., Kim Y., Ko H.S., Byun D., Sungkyunkwan University, KR

Ink-jet printing technology is very attractive for forming micro-size patterns for flat panel displays (FPDS), semiconductor, biological and optical devices. Further the necessity of the industrial inkjet system has grown in the past years due [...]

On-site Screening of Avian Influenza Virus (AIV) by Polystyrene Microfluidic Chip Immunoassay

Zhao Y., Zou M., Xue Q., Zhou P., The Chinese Academy of Inspection and Quarantine, CN

AIV Ag of A type with viral nucleoprotein (NP), which covers all AIV subtypes, including high-pathogenic AIV was determined by polystyrene microfluidic chip ELISA method. In micro-channels of chip instead of conventional 96-well microtiter plates, [...]

Micro and nano flow usage in future nuclear reactors

Popa-Simil L., LAVM, Inc., US

In nuclear reactors to mitigate the need for safety and the request for space of the fission products a new concept of micro-hetero nuclear fuel-structure has been developed. The new fuel design is based on [...]