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Dynamic Spectroscopy Duo

By Guest PostOctober 5, 2014Scienceausbreitung von tumoren, berkeley lab, biological systems, brendan barrett, dcm, graham fleming, hendrik kramers, jumping nanoparticles, kramers turnover, laser trapped particle, levitated nanoparticles, loic rondin, lomas barbudal, monkey project, role of friction, sociable capuchins, Thomas Oliver, two dimensional

2D Electronic-Vibrational Spectroscopy Technique Provides Unprecedented Look into Photochemical Reactions

From allowing our eyes to see, to enabling green plants to harvest energy from the sun, photochemical reactions – reactions triggered by light – are both ubiquitous and critical to nature. Photochemical reactions also play essential roles in high technology, from the creation of new nanomaterials to the development of more efficient solar energy systems. Using photochemical reactions to our best advantage requires a deep understanding of the interplay between the electrons and atomic nuclei within a molecular system after that system has been excited by light. A major advance towards acquiring this knowledge has been reported by a team of researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley. (more…)

Study Identifies Deepwater Horizon Debris as Likely Source of Gulf of Mexico Oil Sheens

By Guest PostAugust 5, 2013Environmentbp, chemical makeup, chris reddy, christoph aeppli, coast guard, cofferdam, dave valentine, deepwater horizon debris, deepwater horizon rig, drilling operations, environmental, fingerprint, gas chromatography, gcxgc, gulf of mexico, industrial chemicals, legal concerns, macondo well, matthias kellermann, oil samples, oil sheens, olefins, preliminary data, real world problem, robert k nelson, source, study, synthetic hydrocarbons, technique, two dimensional, ucsb, united states, university of california, whoi

A chemical analysis of oil sheens found floating recently at the ocean’s surface near the site of the Deepwater Horizon disaster indicates that the source is pockets of oil trapped within the wreckage of the sunken rig. Both the Macondo well and natural oil seeps common to the Gulf of Mexico were confidently ruled out.

Researchers from Woods Hole Oceanographic Institution (WHOI) and the University of California, Santa Barbara (UCSB) used a recently-patented method to fingerprint the chemical makeup of the sheens and to estimate the location of the source based on the extent to which gasoline-like compounds evaporated from the oil sheens. The study was published online in Environmental Science & Technology. (more…)

Gulf of Mexico Oil Spill’s Effects on Deep-Water Corals

By Guest PostMarch 27, 2012Environmentalvin, charles fisher, christopher german, corals, deep sea, deep water coral, deepwater horizon, ecosystem, erik cordes, gas chromatography, gulf of mexico, haverford college, helen white, jason, macondo spill, national science foundation, ocean, oil, oil spill, pen yuan hsing, penn state university, Pennsylvania, petroleum analysis, petroleum hydrocarbon, psu, rapid grant, rodey batiza, rov, submarine, temple university, timothy shank, two dimensional, U.S. Geological Survey, whoi

*Damaged deep-sea corals discovered months after Deepwater Horizon spill*

Scientists are reporting new evidence that the Deepwater Horizon oil spill has affected marine life in the Gulf of Mexico, this time species that live in dark ocean depths–deepwater corals.

The research used a range of underwater vehicles, including the submarine Alvin, to investigate the corals. The findings are published this week in the journal Proceedings of the National Academy of Sciences (PNAS). (more…)

Tag Archives: two dimensional

Dynamic Spectroscopy Duo

Study Identifies Deepwater Horizon Debris as Likely Source of Gulf of Mexico Oil Sheens

Gulf of Mexico Oil Spill’s Effects on Deep-Water Corals