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• Scientists Create a New Way to Study T Cell Signaling

  An experiment that began as a "fantasy pipe dream" just three years ago is now a reality. Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California at Berkeley, combining nanotechnology with biochemistry, have created unique synthetic membranes that, 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

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• Manuka honey inhibits siderophore production in Pseudomonas aeruginosa

  Abstract Aims The aim of this study was to determine whether manuka honey affected siderophore production by three strains of Pseudomonas aeruginosa. Methods and results The MIC of manuka honey against each of the test bacteria was determined. The effect of manuka honey on siderophore p more

• Optimization of MM9 Medium Constituents for Enhancement of Siderophoregenesis in Marine Pseudomonas putida Using Response Surface Methodology

  Pseudomonas putida (CMMB2) was isolated from open ocean water of Gulf of Mannar. The isolate was identified based on 16S rRNA gene sequencing and phylogenetic analysis. Chrome azurol sulphonate assay confirms siderophore production by the isolate. Nature of siderophore produced by the isolate was fo more

• The permeability of silicone rubber to metal compounds: Relevance to implanted devices

  Abstract Most implanted electrical devices use encapsulant as insulation. The encapsulant may remain functional for many years, bonded to the metallic surfaces, but eventually become partly detached allowing corrosion to occur. To understand whether the corrosion products will cause toxic effects more

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