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Graphite oxide at high pressure opens a road to new amazing nano-materials

Nanotechnology / Nanomaterials

created Dec 21, 2009 | popularity 5 / 5 (2) | comments 1

(PhysOrg.com) -- New results by scientists at Umeľ University, Sweden, show that not only water but also alcohol solvents can be inserted to expand the structure of graphite oxide under high pressure conditions. The ...


Chemical energy influences tiny vibrations of red blood cell membranes

Chemical energy influences tiny vibrations of red blood cell membranes

Chemistry / Biochemistry

created Dec 21, 2009 | popularity 4.8 / 5 (6) | comments 0

(PhysOrg.com) -- Much like a tightly wound drum, red blood cells are in perpetual vibration. Those vibrations help the cells maintain their characteristic flattened oval or disc shape, which is critical to ...


Hubble Finds Smallest Kuiper Belt Object Ever Seen

Hubble Finds Smallest Kuiper Belt Object Ever Seen

Space & Earth / Space Exploration

created Dec 16, 2009 | popularity 4.9 / 5 (20) | comments 8

(PhysOrg.com) -- NASA's Hubble Space Telescope has discovered the smallest object ever seen in visible light in the Kuiper Belt, a vast ring of icy debris that is encircling the outer rim of the solar system ...


Caltech scientists film photons with electrons

Caltech scientists film photons with electrons

Physics / General Physics

created Dec 16, 2009 | popularity 4.9 / 5 (21) | comments 0

(PhysOrg.com) -- Techniques recently invented by researchers at the California Institute of Technology -- which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale ...


ESA's Tigers on prowl for solar corona's secrets

ESA's Tigers on prowl for solar corona's secrets

Space & Earth / Space Exploration

created Dec 11, 2009 | popularity 4.7 / 5 (3) | comments 1

(PhysOrg.com) -- Bring together a small group of highly motivated researchers, grant them full access to laboratory and production facilities, remove all administrative distractions, and let them work intensively ...


Researchers demonstrate nanoscale X-ray imaging of bacterial cells

Researchers demonstrate nanoscale X-ray imaging of bacterial cells

Physics / General Physics

created Dec 07, 2009 | popularity 5 / 5 (2) | comments 0

An ultra-high-resolution imaging technique using X-ray diffraction is a step closer to fulfilling its promise as a window on nanometer-scale structures in biological samples. In the Proceedings of the National Ac ...


Early protein processes crucial to formation and layering of myelin membrane

Medicine & Health / Research

created Nov 24, 2009 | popularity not rated yet | comments 0

New findings from an international team of researchers probing the nerve-insulating myelin sheath were bolstered by the work of Boston College biologists, who used x-rays to uncover how mutations affect the structure of myelin, ...


New hydrogen-storage method discovered

New hydrogen-storage method discovered

Chemistry / Materials Science

created Nov 22, 2009 | popularity 4.3 / 5 (43) | comments 15

Scientists at the Carnegie Institution have found for the first time that high pressure can be used to make a unique hydrogen-storage material. The discovery paves the way for an entirely new way to approach ...


Atomic-level Snapshot Catches Protein Motor in Action (w/ Video)

Atomic-level Snapshot Catches Protein Motor in Action (w/ Video)

Biology / Cell & Microbiology

created Nov 20, 2009 | popularity 4.7 / 5 (3) | comments 1

(PhysOrg.com) -- The atomic-level action of a remarkable class of ring-shaped protein motors has been uncovered by researchers with the Lawrence Berkeley National Laboratory using a state-of-the-art protein ...


Unique Uranium Source in Naturally Bioreduced Sediment

Unique Uranium Source in Naturally Bioreduced Sediment

Space & Earth / Environment

created Nov 18, 2009 | popularity 4 / 5 (4) | comments 0

(PhysOrg.com) -- A recently published Pacific Northwest National Laboratory study of a naturally bioreduced sediment sample from a former uranium mill tailings site reveals insights that enhance understanding ...


Building a more versatile laser

Building a more versatile laser

Physics / Optics & Photonics

created Nov 16, 2009 | popularity 4.5 / 5 (19) | comments 0 feature

(PhysOrg.com) -- One of the drawbacks associated with using semiconductor lasers is that many of them can only produce a beam of a single wavelength, and can only send that beam in one direction at a time. ...


New nano color sorters from Molecular Foundry

New nano color sorters from Molecular Foundry

Nanotechnology / Nanophysics

created Nov 12, 2009 | popularity 4.3 / 5 (4) | comments 0

Berkeley Lab researchers have engineered a new class of bowtie-shaped devices that capture, filter and steer light at the nanoscale. These "nano-colorsorter" devices act as antennae to focus and sort light ...


NSLS-II Project Beamline Conceptual Designs

Physics / General Physics

created Nov 10, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- The NSLS-II Experimental Facilities Division achieved an important milestone in September when the conceptual design reports for the initial six project beamlines were completed and submitted to NSLS-II management.


First hyperlens for sound waves created

First hyperlens for sound waves created

Physics / General Physics

created Oct 25, 2009 | popularity 4.7 / 5 (18) | comments 4

Ultrasound and underwater sonar devices could "see" a big improvement thanks to development of the world's first acoustic hyperlens. Created by researchers with the U.S. Department of Energy's Lawrence Berkeley ...


Trembling hands and molecular handshakes

Medicine & Health / Diseases

created Oct 23, 2009 | popularity 4 / 5 (1) | comments 0

The heritable Fragile X tremor/ataxia syndrome is a common neurodegenerative disease. It is assumed to result from a relative lack of the protein Pur-alpha. A new study by a German team under the leadership of Dr. Dierk Niessing ...