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Electrically excited plasmon resonances in hybrid metallic nano-structures as innovative sensor concept in bioanalytics

Investigations on light emission by inelastic tunneling in metal-insulator-semiconductor structures, as concept for a new type of sensor, were performed. Tunneling junctions were designed, fabricated and...

Chemo-spectroscopic sensor for carboxyl terminus overexpressed in carcinoma cell membrane

Certain carboxyl groups of the plasma membrane are involved in tumorgenesis processes. A gold core-hydroxyapatite shell (AuHA) nanocomposite is introduced as chemo-spectroscopic sensor to monitor these...

Photophysics of a Ruthenium 4H-Imidazole Panchromatic Dye in Interaction with Titanium Dioxide

The photophysics of bis-η2-(4,4’-di-(tert-butyl)-2,2’-bipyridine)-η2-(2-(p-benzoic acid)-4,5-(p-tolylimino)-imidazolate)-ruthenium(II)-hexafluorophosphate is investigated, both in solution and attached...

Neue Forschungsergebnisse am Karlsgraben durch geophysikalische Meßmethoden

Differences in Single and Aggregated Nanoparticle Plasmon Spectroscopy

Vibrational spectroscopy usually provides structural information averaged over many molecules. We report a larger peak position variation and reproducibly smaller FWHM of TERS spectra compared to SERS...

Lens-free inline holographic microscopy with numerical correction of layers with different refractive index

Digital inline holographic microscopy is applied for lens-free imaging with high lateral resolution. Microfluidic chambers for imaging of cells in water-like or native solutions, e.g. thick layers of glass...

Blood cell diagnostics by a chip lensless microscope

We present the digital inline holographic microscopy for blood cell counting. The microscope unit contains a pinhole chip for illumination, a micro-fluidic chip, and a CMOS-chip for detection. The design...

Phase dynamics of two parallel stacks of coupled Josephson junctions

Two parallel stacks of coupled Josephson junctions (JJs) are investigated to clarify the physics of transitions between the rotating and oscillating states and their effect on the IV-characteristics of...

Membrane based thermoelectric sensor array for space debris detection

As manmade space debris in the low earth orbit becomes an increasing risk to space missions, which could even result in total mission loss, it has become even more critical to have detailed knowledge of...

KRAS mutation screening by chip-based DNA hybridization – a further step towards personalized oncology

The use of predictive biomarkers can help to improve therapeutic options for the individual cancerpatient. For the treatment of colon cancer patients with anti-EGFR-based drugs, the KRAS mutation statushas...