Chemical byproducts of dry cleaning and silicon chip production are dechlorinated by the microbe dehalococcoides ethenogenes
Scientists have deciphered the genome sequence of a microbe that can be used to clean up pollution by chlorinated solvents – a major category of groundwater contaminants that are often left as byproducts of dry cleaning or industrial production.
The study of the DNA sequence of Dehalococcoides ethenogenes, which appears in the January 7 issue of Science, found evidence that the soil bacterium may have developed the metabolic capability to consume chlorinated solvents fairly recently – possibly by acquiring genes in an adaptation related to the increasing prevalence of the pollutants. "The genome sequence contributes greatly to the understanding of what makes this microbe tick and why its metabolic diet is so unusual," says TIGR scientist Rekha Seshadri, the primary author of the Science paper.
"These talented microbes are providing us with important tools to help clean up pollutants," says TIGR President Claire M. Fraser, a coauthor of the Science paper. "By revealing the secrets of microbial metabolism, genomics can be a boon to the environment."
Robert Koenig | EurekAlert!
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From June 25th to 27th 2019, the Fraunhofer Institute for Digital Media Technology IDMT in Ilmenau (Germany) will be presenting a new solution for acoustic quality inspection allowing contact-free, non-destructive testing of manufactured parts and components. The method which has reached Technology Readiness Level 6 already, is currently being successfully tested in practical use together with a number of industrial partners.
Reducing machine downtime, manufacturing defects, and excessive scrap
The quality of additively manufactured components depends not only on the manufacturing process, but also on the inline process control. The process control ensures a reliable coating process because it detects deviations from the target geometry immediately. At LASER World of PHOTONICS 2019, the Fraunhofer Institute for Laser Technology ILT will be demonstrating how well bi-directional sensor technology can already be used for Laser Material Deposition (LMD) in combination with commercial optics at booth A2.431.
Fraunhofer ILT has been developing optical sensor technology specifically for production measurement technology for around 10 years. In particular, its »bd-1«...
The well-known representation of chemical elements is just one example of how objects can be arranged and classified
The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...
Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.
Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...
Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.
The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...
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