The influence of substrate hydrophobicity and biomacromolecules (dextran, bovine serum albumin - BSA) adsorption on the cleanability of surfaces soiled by spraying aqueous suspensions of quartz particles (10-30μm size), then dried, was investigated using glass and polystyrene as substrates. The cleanability was evaluated using radial flow cell (RFC). The surface composition was determined by X-...

We study by numerical simulation in two and three dimensions the coupling layer between transducer microfluidic chip ultrasound acoustofluidic devices. The model includes with electrodes, a liquid-filled microchannel, chip. consider commonly used materials, solid epoxy glue viscous glycerol, as well device types, glass capillary tubes silicon-glass chips. how acoustic resonances ideal devices w...

A continuous near-field electrospray process has been developed to deposit micropatterns. Different from traditional electrospray technologies, the nozzle-to-substrate distance was shortened to less than 5 mm, and a glass capillary nozzle with a diameter of tens of microns was used. Steady and continuous ejection was achieved, and patterns with line widths of sub-100 μm were generated. The infl...

Here, we report on DNA electrophoresis through a novel artificial sieving matrix based on the highly regular submicrometer cylindrical glass capillary segments alternatingly arranged with wells. Such round capillaries pose a higher-order confinement resulting in a lower partition coefficient and greater entropic energy barrier while limiting the driving field strength to a small fraction of the...

T. Seydel,* M. Tolan, B. M. Ocko, O. H. Seeck, R. Weber, E. DiMasi, and W. Press Institut Laue-Langevin, BP 156, F-38042 Grenoble, France Experimentelle Physik 1, Universität Dortmund, Otto-Hahn-Strasse 4, D-44221 Dortmund, Germany Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000 IFF, FZ Jülich GmbH, D-52425 Jülich, Germany Institut für Experimentelle und Angewandt...

In this chapter, a detailed outline delineating the processing steps for microfabricating capillary electrophoresis (CE) with integrated electrochemical detection (ECD) platforms for performing analyte separation and detection is presented to enable persons familiar with microfabrication to enter a cleanroom and fabricate a fully functional Lab-on-a-Chip (LOC) microdevice. The processing steps ...

Polymeric polyimide capillary tubing, both uncoated and coated with stationary phases of two polarities, is explored for use as capillary columns for gas chromatography (GC). These glass-free polyimide columns are flexible and their small winding diameter of less than a cm around a solid support makes them compatible for potential use in portable GC instruments. Polyimide columns with dimension...

The paper presents a modification of capillary optical fibers fabrication method from an assembled glass preform. A change of dimensional proportions in the capillary optical fiber drawn from a single preform is allowed on-line via the control of overpressure and thermal conditions in the outflow meniscus which essentially lowers the manufacturing costs. These conditions are among the solutions...