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Comparative two- and three-dimensional analysis of nanoparticle localization in different cell types by Raman spectroscopic imaging

The increasing production and application of engineered nanomaterials requires a detailed understanding of the potential toxicity of nanoparticles and their uptake in living cells and tissue. For that...

Transient absorption in pumped Yb fibers opens a path to photodarkening

We investigated the strong absorption change appearing in ytterbium (Yb)-doped silica simultaneously with Yb3+ excitation and vanishing immediately after pump power switch-off. The transient absorption...

Calibration of SQUID vector magnetometers in full tensor gradiometry systems

Measurement of magnetic vector or tensor quantities, namely of field or field gradient, delivers more details of the underlying geologic setting in geomagnetic prospection than a scalar measurement of...

Reconstructing the 3D shapes of droplets in glass microchannels with application to Bretherton’s problem

The outstanding potential of absorbance imaging for the 3D shape analysis of dynamic scenes in multiphase flows is demonstrated and experimentally confirmed. The experimental procedures and workflows have...

Hydrodynamic Models of a Microchannel System with Integrated Nanofilter Membranes for Capturing Blood Cells at the Pore Array of the Membrane

Micro Droplet Generation, Capturing and Storage in a Multi-Chamber Carrier for Evaluation of Soil Microbial Communities

Soil microbial communities are of very large importance for ecological systems and they are in the focus of searching for microorganisms producing unknown antibiotics. The composition and development of...

Length distributed measurement of temperature effects in Yb-doped fibers during pumping

We demonstrate a distributed measurement technique to observe temperature changes along pumped Yb-doped fibers. This technique is based on an array of fiber Bragg gratings acting as a temperature sensor...

Elevating optical activity: Efficient on-edge lithography of three-dimensional starfish metamaterial

We present an approach for extremely fast, wafer-scale fabrication of chiral starfish metamaterials based on electron beam- and on-edge lithography. A millimeter sized array of both the planar chiral and...

Biomimetic-inspired infrared sensors from Zn3P2 microwires: Study of their photoconductivity and infrared spectrum properties

The fire beetle, Melanophila acuminata (Coleoptera: Buprestidae), senses infrared radiation at wavelengths of 3 and 10–25 microns via specialized protein-containing sensilla. Although the protein denatures...

Magnetic particle hyperthermia—a promising tumour therapy?

We present a critical review of the state of the art of magnetic particle hyperthermia (MPH) as a minimal invasive tumour therapy. Magnetic principles of heating mechanisms are discussed with respect to...