DE – Page 6 – TechConnect Briefs

Nanomanipulators with reduced hysteresis and interferometers build in NanoFabs

Luskinovich P.N., Zhabotinskiy V.A., NANOMETER Standard GmbH, DE

The use of nanomanipulators made on the base of monocrystals characterized inverse piezoelectric effect and many times, in comparison with piezoceramic, less hysteresis and creep, allows to achieve the following results: - Shorten the time [...]

Electro-thermal micro-pumps: exploiting structural polarizations at smeared interfaces

Stubbe M., Gimsa J., University of Rostock, DE

Various designs for new AC electro-thermal micro-pumps (ETµPs) are present which exploit AC electro-kinetic forces acting on smeared charges in the bulk of fluids in the presence of a temperature gradient. Measurements of the pump [...]

Exploiting structural polarization effects for the AC-electrokinetic manipulation of objects and media in cell chips

Gimsa J., Stubbe M., University of Rostock, DE

AC fields induce polarization charges at the structural interfaces inside inhomogeneous media (Maxwell-Wagner polarization). In suspensions or emulsions of micro and nano objects such as particles, oil droplets, air bubbles and biological cells, these structures [...]

Ultrasonic Milling and Dispersing Technology for Inkjet Nano-Particles

Hielscher K., Hielscher Ultrasonics, DE

The application of mechanical stress – e.g. generated by ultrasonic cavitation - breaks the particle agglomerates apart. Also, liquid is pressed between the particles. Different technologies are commonly used for the dispersing of powders into [...]

Non-contact biaxial nanoprobe utilized for surface measurements of MEMS

Goj B., Dressler L., Hoffmann M., Ilmenau University of Technology, DE

In this work an oscillating biaxial nanoprobe will be presented which measures the surface of a measurement object. The biaxial nanoprobe vibrates in two directions to realize scanning measurements and to overcome the challenges of [...]

A personal sampler for direct mass determination of nano-particles using a resonant cantilever sensor

Salthammer T., Merzsch S., Peiner E., Kirsch I., Uhde E., Waag A., Wasisto H.S., Fraunhofer WKI, DE

The increasing industrial use of manufactured nano-particles demands for work place monitors and personal samplers to assess the exposure of production workers. Such particles are typically measured using comparatively complex and costly instrumentation. These instruments [...]

Time-Resolved Luminescence Measurements on Up-Conversion Phosphors for Electron Beam Sterilization Monitoring

Reitzig M., Härtling T., Winkler M., Powers P.E., Derenko S., Röder O., Opitz J., Fraunhofer Institute for Nondestructive Testing IZFP, Dresden Branch, DE

We present recent investigations on time-resolved measurements on alterations in the temporal luminescence decay of up-conversion phosphors induced by electron beam treatment. As a consequence of the tight regulations concerning sterility in the food and [...]

Granular magnetoresistance effects in systems with organic matrices

Meyer J., Schäfers M., Rempel T., Hütten A., Bielefeld University, DE

The granular giant magnetoresistance effect was originally studied in systems with ferromagnetic granules embedded in a metallic matrix. In contrast to previous systems, we have tested conductive nonmagnetic gels as matrices for the Co nanoparticles. [...]

An Effective Dialysis Method for Surface Funtionalization of Nanoparticles in Liquid Phase – Sample: Porphyrine derivatives @ ZnO-Nanorods

Klaumünzer M., Münzel C., Burger A., Voigt M., Spiecker E., Hirsch A., Peukert W., University Erlangen-Nürnberg, DE

In order to optimizing electron transfer and optoelectronic properties in nanoparticulate thin films for electronics we report on an efficient and fast method for surface functionalizing semiconducting metal oxide nanoparticles in liquid phase using a [...]

Nanostructuring of dielectric surfaces induced by KrF excimer laser radiation: Experiment and theory

Lorenz P., Kloeppel M., Frost F., Ehrhardt M., Li P., Zimmer K., IOM Leipzig, DE

Nanostructures as well as nanoparticles have a large field of application and a growing economic importance. However, the fabrication of nanostructures poses a big challenge. One promising approach is the usage of laser methods, which [...]