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Break-through in High Temperature Polymer Separation Technology

The AF2000 HT Series is the world's first commercial HTFFF instrument available and was invented and patented by Postnova Analytics. High Temperature Field-Flow Fractionation is a brand new technology ideally suited for the advanced separation of high molar mass polymers, such as polyethylene and polypropylene. more

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• MRI zooms in on microscopic flow

  "Better and faster results!" is the clarion call for scientists and engineers to continually strive to improve their research tools. Of the tools used to study material structures at the atomic and molecular scales, there is none finer than Nuclear Magnetic Resonance (NMR) spectroscopy and its daugh more

• Fuel cells in operation: A closer look

  Measuring a fuel cell's overall performance is relatively easy, but measuring its components individually as they work together is a challenge. That's because one of the best experimental techniques for investigating the details of an electrochemical device while it's operating is x-ray photoelectro more

• Water is an active element in proteins
  

  Biophysicists in Bochum have discovered a diode for protons: just like the electronic component determines the direction of flow of electric current, the “proton diode” ensures that protons can only pass through a cell membrane in one direction. Water molecules play an important role here as active more

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• Field-Flow Fractionation - The Universal Separation Principle for Particle and Macromolecule Characterization
  

  High molecular weight polymers, bio molecules or particles in a range of a few nanometers up to several microns are more and more important in science and technology. Many applications are based on the specific properties of these materials. For this reason, an exact knowledge of the molar mass or particle sizes distribution is essential for later application as well as for optimization of the production processes or quality control. In addition the knowledge about the chain structure of macromolecules or biopolymers as well as about the shape of particles is often necessary. For this reason those samples, which often can be very complex systems, have to be separated according to parameters such as e.g. hydrodynamic volume or molecular weight. After the separation process the resulting narrow dispersed fractions are detected with different techniques. more

• Sensible and self-monitoring
  

  For the generation of soft water are mostly used ion exchanging devices with generation of sodium chloride since the beginning of the Sixties. The generated soft water quality and soft water quantity are depending thereby on the static and dynamic characteristics of the softening plant in operation. more

• Ultrafast De Novo Sequencing of Corynebacterium urealyticum Using the Genome Sequencer 20 System
  

  A microbial genome sequence provides a wealth of data and specific information that cannot be obtained by other experimental approaches. A genome sequence can be regarded as the starting point for detailed bioinformatics analysis, metabolic reconstruction and systematic functional examination of all identified genes. In particular, genome sequencing has revealed important information on genes and deduced proteins of human pathogens, including putative virulence factors and potential new drug targets. more

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