Publications by authors named "H W Dehne"

Tuning colloidal structure formation is a powerful approach to building functional materials, as a wide range of optical and viscoelastic properties can be accessed by the choice of individual building blocks and their interactions. Precise control is achieved by DNA specificity, depletion forces, or geometric constraints and results in a variety of complex structures. Due to the lack of control and reversibility of the interactions, an autonomous oscillating system on a mesoscale without external driving was not feasible until now.

View Article and Find Full Text PDF

An accurate determination of body core temperature is crucial during surgery in order to avoid and treat hypothermia, which is associated with poor outcome. In a prospective observational study, we evaluated the suitability of the Tcore™ device (Drägerwerk AG & Co. KGaA, Lübeck, Germany)-a non-invasive thermometer-to accurately determine core body temperature.

View Article and Find Full Text PDF
Article Synopsis
  • Head blight (FHB) in wheat is increasingly problematic, leading to a need for effective techniques to detect infections and mycotoxin contamination.
  • This study explored the effectiveness of hyperspectral imaging in monitoring infected wheat kernels and flour, using two wheat varieties inoculated with specific fungi.
  • Results showed that infected kernels had higher spectral reflectance than non-inoculated ones, with strong correlations between spectral data and levels of fungal DNA and the mycotoxin deoxynivalenol (DON).
View Article and Find Full Text PDF

Optical sensors have shown high capabilities to improve the detection and monitoring of plant disease development. This study was designed to compare the feasibility of different sensors to characterize head blight (FHB) caused by and . Under controlled conditions, time-series measurements were performed with infrared thermography (IRT), chlorophyll fluorescence imaging (CFI), and hyperspectral imaging (HSI) starting 3 days after inoculation (dai).

View Article and Find Full Text PDF

Dynamic self-organisation far from equilibrium is a key concept towards building autonomously acting materials. Here, we report the coupling of an antagonistic enzymatic reaction of RNA polymerisation and degradation to the aggregation of micron sized DNA coated colloids into fractal structures. A transient colloidal aggregation process is controlled by competing reactions of RNA synthesis of linker strands by a RNA polymerase and their degradation by a ribonuclease.

View Article and Find Full Text PDF