Micro & Bio Fluidics, Lab-on-Chip – Page 15

Effect of laser processing parameters and glass type on topology of micro-channels

Ben Azouz A., Brabazon D., Vázquez M., Macka M., Dublin City University, IE

Traditional techniques to manufacture micro-fluidic devices are well established but most are limited to surface micro-fabrication. Laser micro-machining provides an alternative technique for micro-fabrication of devices. This paper presents the fabrication of 3-D micro-channel structures [...]

Analysis of prediction capability for internal micro-channels fabrication in polycarbonate and PMMA

Karazi S.M., Brabazon D., Dublin City University, IE

This paper presents a 3^3 factorial Design of Experiment (DoE) and Artificial Neural Networks (ANN) for the prediction of two characteristics of the pulsed Nd:YVO4 laser machined internal micro-channels in Polycarbonate and PMMA glass. Power, [...]

Innovative Strobe-Based Drop Analysis Equipment for Non-Contact Dispensing Systems

Kipman Y., ImageXpert Inc., US

A fully integrated machine-vision based system has been developed for visualization and measurement of drops-in-flight from non-contact dispensing tips. Unlike previously offered systems in the marketplace, this system can be used with any frequency-based jetting [...]

Novel ultra-fine hollow needles formed on Silicon membranes

Sanaee Z., Mohajerzadeh S., University of Tehran, IR

In this paper we report the realization of record-small hollow needles. The fabrication process does not need a three-dimensional lithography and uses a high precision deep vertical etching in a hydrogenation assisted ion etching unit. [...]

Optimized Surface Patterning Tools for Sub-attoliter Volume Fluid Deposition

Adams M.L., University of South Alabama, US

Micromachined cantilever-based surface patterning tools were optimized to allow submicron diameter printing of fluids on various surfaces. A detailed fluidics model was used to analyze critical variables and determine the best method for optimization. Tools [...]

Droplet actuation in PPy redox process

Tsai Y-T, Choi C-H, Yang E.H., Stevens Institute of Technology, US

A wettability switchable surface will be demonstrated to study the contact angle hysteresis of liquid droplet. Manipulation of surface wettability can be applied in the field of biomedical (cell-surface interaction) and fluids dynamics (friction reduction). [...]

Toward reliable synthesis of radiotracers for positron emission tomography in PDMS microfluidic chips: Study and optimization of the [18F] fluoride drying process

Tseng W-Y, University of California, Los Angeles, US

Positron Emission Tomography (PET) is a powerful imaging tool with high sensitivity and molecular specificity. Microfluidic systems have shown great promise for the preparation of PET tracers labeled with fluorine-18 (F-18), especially those based on [...]

Nanofluidic Channel Based Single Molecular Sensors in Polymer Substrate Fabricated by Novel Nanoimprinting Processes

Wu J., Chantiwas R., Soper S.C., Park S., Louisiana State University, US

One critical challenge in developing innovative nanochannel-based sensors for bio/chemical analyses is to build multiscale structures composed of narrow, long and continuous fluidic nanochannels and microfluidic networks at low cost. We presents a novel process [...]

The Investigation of Electrostatic Induced Inkjet Printing System for the Ejection of a Stable Micro/Nano Droplet

Choi J., Kim Y.J., Son S.U., Chul An K., Lee S., Sungkyunkwan University, KR

Inkjet printing technology has recently attracted considerable attention for a simple fabrication and advanced pattering process during the past decade. In order to manufacture advanced inkjet printing technology, my team has alternatively proposed and investigated [...]

Multiplexed Localization in Bi-Layer Digital Microfluidic Systems

Abolhasani M., Devlin K.D., Najjaran H., Hoorfar M., Holzman J.F., The University of British Columbia Okanagan, CA

This paper reports a novel system-level design for digital microfluidic (DMF) devices. A DMF multiplexer structure based on a cross-referencing architecture is presented. The design makes use of bi-polar voltage activation and threshold effects to [...]