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  • Help in the Search for the Needle in the Haystack

    In the earth and environmental sciences, radioactive isotopes, atom variants that decay over time, play a major role in age determination. A radioactive isotope of the inert gas argon (39Ar), for example, is used to determine the age of water or ice. Such isotopes are extremely rare, however – only more

  • "Funnel" attracts bonding partners to biomolecule

    Water is a ubiquitous solvent in all life sciences – sometimes referred to as the "matrix of life". Contrary to earlier assumptions, it is not a passive witness of biochemical processes; rather, it participates in them actively. By influencing the movement of water molecules surrounding their bindin more

  • Researchers Part Water

    Using an "electric prism", scientists have found a new way of separating water molecules that differ only in their nuclear spin states and, under normal conditions, do not part ways. Since water is such a fundamental molecule in the universe, the recent study may impact a multitude of research areas more

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  • Quantitative Detection of Legionella pneumophila in Water Samples: Assay Transfer to the LightCycler® 480 Real-Time PCR System

    An assay to detect and quantify Legionella spp. in water samples was successfully transferred from a capillary-based LightCycler® Instrument to the novel multiwell plate-based LightCycler® 480 System. A previously described protocol was easily adapted by modifying the fluorescent label of the detection probe to match the filter set of the LightCycler® 480 Instrument. While reproducibility and analytical sensitivity of the assay were found to be comparable on both systems, the novel plate-based instrument allowed for higher sample throughput and reduced assay time per sample. more

  • LOOXSTER® concentrates bacterial DNA

    Detection of the bacterial content of a specific sample, irrelevant from its source, is not as straightforward as it seems. In clinical microbiology laboratories, the gold standard method for the detection of pathogens in patients suspected of systemic infections is the blood culture. However, this technique is known to have many drawbacks especially with regard to patient's antibiotics treatment, low abundance and non-cultivable organisms. Moreover, it takes usually 3 to 5 days to obtain a result from blood culture which is too late to initiate proper antibiotic therapy. Amplification-based methods such as PCR allow results in a more rapid fashion. However, their sensitivity, to date, are no better, and sometimes worse, than culture-based methods. more

  • Enzymatic Protein Digest for Mass-spectrometric Analysis

    The main focus in proteomic studies is on the identification of proteins in given biological samples. Proteins isolated and separated from a given sample (e.g., whole cell lysates, blood or tissue, protein complexes) by immunoprecipitation or affinity chromatography or two-dimensional electrophoresis must be proteolytically cleaved in the course of sample preparation for identification and characterization. A reproducible cleavage pattern of digested proteins is a prerequisite for the unambiguous identification of these proteins by mass spectrometry (MS). more

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Applied Thermal Control - Recirculating Chillers

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AstraNet Systems - Manufacturer and supplier of spectrometers, fluorimeters, spectrophotometers from

home products news applications technical profile contact distributors AstraNet Systems Ltd is a specialist supplier and manufacturer to the UK European and Worldwide spectroscopy market. AstraNet Systems Ltd is a specialist supplier of standard or custom designed spectrophotometers for laboratory, more

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