DE – Page 10 – TechConnect Briefs

Water-soluble nanoparticles as an universal imaging tool

Niehaus J., Becker S., Schmidtke C., Ness D., Werner K., Weller H., Center for Applied Nanotechnology, DE

Here we present a two step concept for phase transfer of NPs soluble in non-polar media. The first step is an exchange of the stabilizing organic molecules against a multidental binding short chain polymer. In [...]

Iron-oxide nanoparticle synthesis from liquid spray flames under variable pressure conditions

Hardt S., Wiggers H., Wlokas I., Kempf A., Schulz C., University of Duisburg-Essen, DE

Iron-oxide nanoparticles have been synthesized via liquid-fed flame spray pyrolysis (FSP) under variable pressure conditions. The work focuses on the effect of pressure, precursor flow rate, and flame stoichiometry on particle size, composition, and morphology. [...]

Effect of particle presence on gas phase temperature in the flame spray pyrolysis

Engel S.R., Gao Yi, Koegler A.F., Kilian D., Seeger T., Peukert W., Leipertz A., Department of Engineering Thermodynamics, DE

For the production of manufactured nanoparticles at a commercial scale flame processes are most frequently used. An important basis for understanding the complexity of this process is the characterization of the combustion process in dependence [...]

Continuous synthesis of highly-specific silicon nanopowder on the pilot-plant scale

Hülser T., Schnurre S.M., Schulz C., Wiggers H., Institute of Energy and Environmental Technology (IUTA), DE

In this work we present the formation process of crystalline and amorphous nanostructured silicon made from a continuously operating hot-wall reactor synthesis process. In this reactor, silicon particles are synthesized at variable operating conditions varying [...]

In situ optical investigations into the nucleation and growth mechanism of carbon nanotubes

Reinhold-López K., Braeuer A., Popovska-Leipertz N., Leipertz A., Popovska-Leipertz N., University of Erlangen-Nuremberg, DE

During the catalytic chemical vapor deposition (CCVD) of carbon nanotubes (CNTs) the gas phase has been investigated by applying linear Raman spectroscopy and particle image velocimetry (PIV) in a specially designed cold wall reactor. Via [...]

Platinum Silicide probes: A novel approach to manufacture highly conductive AFM probes with small radii and high wear resistance

Krause O., Sebastian A., Despont M., Nanoworld Services, DE

Conventionally, conductive Atomic Force Microscopy (c-AFM) probes are either made by depositing a metal, an alloy or a doped diamond layer onto a ready-made AFM probe or, alternatively, by depositing one of those materials into [...]

Green Regional Aircraft – the European Clean Sky Program aims for greener Aeronautics

Kaulfersch E., Schüller M., Hammacher J., Rzepka S., Fraunhofer ENAS Germany, DE

The ‘Clean Sky’ Joint Technology Initiative (JTI, cleansky.eu) is an innovative European program aiming at massively lower impacts of air transport on the environment. The objective of the Green Regional Aircraft sub-project is to validate [...]

CNS Regeneration After Chronic Injury Using a Self-assembled Nano Material

Liang Y-X, Cheung S.W.H., Chan K.C.W., Wu E.X., Tay D.K.C., Ellis-Behnke R.G., Medical Faculty Mannheim of the University of Heidelberg, DE

To speed up the process of central nervous system (CNS) recovery after injury, the need for real-time measurement of axon regeneration in vivo is essential to assess the extent of injury, as well as the [...]

Highly stable and orientationally coupled gold nanoparticle antibody conjugates for sensitivity improvement in LFIA

Ijeh M., Vossmeyer T., Weller H., University of Hamburg, DE

LFIAs are used in the investigation of a variety of bio-molecular binding interactions and they remain the primary means for point of care and fast detection of analytes including pathogens and toxins. In a novel [...]

Fabrication of magnetic bio-Au nanoclusters by using SlaA-layer ghosts of Sulfolobus acidocaldarius as a template

Selenska-Pobell S., Reitz T., Geissler A., Herrmannsdörfer T., Merroun M., Forschungszentrum Dresden Rossendorf, DE

We demonstrate that the outermost proteinaceous surface layer SlaA of the thermo acidophilic archaeon Sulfolobus acidocaldarius is an excellent matrix for preparation of bio-Au nanoclusters. The archaeal bio-Au nanoparticles are significantly bigger and possess considerably [...]