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Klimawandel: Gelöster organischer Kohlenstoff der Tiefsee reaktiver als angenommen

By Guest PostMarch 29, 2015Environmentanne le grand, atlantik, fourier transform, high tide water, jennifer ruesink, klimawandel, kohlenstoff, life threatening seizures, mass spectrometry, microsoft hackathon, mikroorganismen, peace of mind, perinatal stroke, project mirrorhr, proteine, sudden unexpected death, tidal ecosystem, tidal flats, universitaet wien

Tiefsee-Mikroben verarbeiten gelöste organische Stoffe nur ineffizient, weil die Moleküle zu stark verdünnt vorliegen

Die Tiefsee als gigantischer Kohlenstoffspeicher spielt eine entscheidende Rolle beim Klimawandel. Experimente zur Verfügbarkeit von gelöstem organischem Material im Tiefenwasser des Atlantiks haben jetzt gezeigt, dass Tiefwassermikroben durchaus in der Lage sind, dieses organische Material zu nutzen – allerdings aufgrund der großen Verdünnung nicht effizient. Ein internationales ForscherInnenteam unter Leitung von Gerhard J. Herndl von der Universität Wien publiziert dazu in der aktuellen Ausgabe der Fachzeitschrift “Science”. (more…)

Berkeley Lab Develops Nanoscope to Probe Chemistry on the Molecular Scale

By Guest PostJune 22, 2014Scienceatomic force microscopy, berkeley lab, bezahnten schildkroete, fourier transform, ftir, ganeshwaran mochida, gpt2, green party, hans bechtel, jill stein, lida xing, meteorites, michael martin, molecular scale, mouse neuron, new technique, oberen jura, ozan baytas neurological disease, proteins, qing ouyang, schildkroeten, sichuanchelys palatodentata, stardust, synchrotron infrared, university of colorado, walter joyce, wucaiwan, wuestenregion chinas

For years, scientists have had an itch they couldn’t scratch. Even with the best microscopes and spectrometers, it’s been difficult to study and identify molecules at the so-called mesoscale, a region of matter that ranges from 10 to 1000 nanometers in size. Now, with the help of broadband infrared light from the Advanced Light Source (ALS) synchrotron at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), researchers have developed a broadband imaging technique that looks inside this realm with unprecedented sensitivity and range.

By combining atomic force microscopy with infrared synchrotron light, researchers from Berkeley Lab and the University of Colorado have improved the spatial resolution of infrared spectroscopy by orders of magnitude, while simultaneously covering its full spectroscopic range, enabling the investigation of variety of nanoscale, mesoscale, and surface phenomena that were previously difficult to study. (more…)

Synchrotron Infrared Unveils a Mysterious Microbial Community

By Guest PostJanuary 31, 2013Science16s rrna gene, acid mine runoff, advanced light source, alexander probst, als, ancient things, another amazing lifestyle, archaea, bacteria, barbs, berkeley lab, biochemistry, biofilm, black smokers, boiling hot springs, bsisb, carbon, christine moissl eichinger, common hydrocarbon, deep sea, deepwater horizon, dna microarray, extremophiles, fatty acids, fourier transform, functional groups, giovanni birarda, gulf of mexico, hami, hami protein, hoi-ying Holman, hooks, hydrogen atoms, infrared spectromicroscopy, inhospitable environments, jet propulsion laboratory, kasthuri venkateswaran, latin, long alkylic chains, lovers, membrane lipids, microbe samples, muehlbacher schwefelquelle, mysterious microbial community, NASA, oil plume, oil spill research, phylochip, protein strands, second genome, sippenauer moor, sm1 euryarchaeon, sm1 research team, southern germany, sr ftir, strings of pearls, sulfur springs, synchrotron ftir, synchrotron infrared, synchrotron radiation, syntrophic, todd desantis, university of regensburg

Berkeley Lab scientists join an international collaboration to understand how archaea and bacteria work together deep in a cold sulfur spring

In the fall of 2010, Hoi-Ying Holman of the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) was approached by an international team researching a mysterious microbial community discovered deep in cold sulfur springs in southern Germany.

“They told me what they were doing and said, ‘We know what you contributed to the oil-spill research,’” recalls Holman, who heads the Chemical Ecology group in Berkeley Lab’s Earth Sciences Division. “They wondered if I could help them determine the biochemistry of their microbe samples.” (more…)

Tag Archives: fourier transform

Klimawandel: Gelöster organischer Kohlenstoff der Tiefsee reaktiver als angenommen

Berkeley Lab Develops Nanoscope to Probe Chemistry on the Molecular Scale

Synchrotron Infrared Unveils a Mysterious Microbial Community