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New graphene-based material clarifies graphite oxide chemistry

New graphene-based material clarifies graphite oxide chemistry

Nanotechnology / Nanomaterials

created Sep 25, 2008 | popularity 4.1 / 5 (16) | comments 0

A new "graphene-based" material that helps solve the structure of graphite oxide and could lead to other potential discoveries of the one-atom thick substance called graphene, which has applications in nanoelectronics, ...


Seeing Nanotubes Targeting Tumors In Vivo

Nanotechnology / Bio & Medicine

created Oct 27, 2008 | popularity 4.4 / 5 (7) | comments 0

Carbon nanotubes have significant potential for delivering both imaging and therapeutic agents to tumors, but there is still a need to better quantify how well these rolled-up sheets of graphite can target tumors. Now, thanks ...


Laser etching safe alternative for labeling grapefruit

Laser etching safe alternative for labeling grapefruit

Biology / Other

created Nov 03, 2009 | popularity 4.4 / 5 (14) | comments 8

Laser labeling of fruit and vegetables is a new, patented technology in which a low-energy carbon dioxide laser beam is used to label, or "etch" information on produce, thereby eliminating the need for common ...


'All-natural' sex pill contains Viagra chemical: FDA

Medicine & Health / Medications

created Nov 05, 2009 | popularity 2.5 / 5 (4) | comments 4

The US food and drug safety watchdog warned Thursday that an over-the-counter men's sex aid, labeled as all-natural, contains a chemical similar to the active ingredient in Viagra and could be dangerous.


Seeing things: Researchers teach computers to recognize objects

Seeing things: Researchers teach computers to recognize objects

Technology / Computer Sciences

created Oct 13, 2009 | popularity 3.2 / 5 (5) | comments 1

(PhysOrg.com) -- If computers could recognize objects, they could automatically search through hours of video footage for a particular two-minute scene. A tourist strolling down a street in a strange city ...


Carnegie Mellon MRI technology that non-invasively locates, quantifies specific cells in the body

Chemistry /

created Aug 21, 2008 | popularity 4.8 / 5 (5) | comments 0

Magnetic resonance imaging (MRI) isn't just for capturing detailed images of the body's anatomy. Thanks to novel imaging reagents and technology developed by Carnegie Mellon University scientist Eric Ahrens, MRI can be used ...


Some blood-system stem cells reproduce more slowly than expected

Biology /

created Dec 05, 2008 | popularity 4.8 / 5 (5) | comments 0

(PhysOrg.com) -- Investigators from Massachusetts General Hospital (MGH) have found a subpopulation of hematopoietic stem cells, the source of all blood and immune system cells, that reproduce much more slowly than previously ...


Carbon Nanotube Transistor Can Detect Genetic Mutations

Nanotechnology /

created Jan 25, 2006 | popularity 3.3 / 5 (14) | comments 0

University of Pittsburgh researcher Alexander Star and colleagues at a California-based company, Nanomix, Inc., have developed devices made of carbon nanotubes that can find mutations in genes causing hereditary diseases, ...


How big (or small) is large?

Other Sciences / Social Sciences

created Mar 17, 2009 | popularity not rated yet | comments 0

Trousers have to be tried on - the variation between size labeling and actual clothing size is huge. This is shown by the report "Large? Clothing sizes and size labeling", which looks at the relationship between clothing ...


Unknowlingly consuming endangered tuna

Unknowlingly consuming endangered tuna

Biology / Ecology

created Nov 19, 2009 | popularity 5 / 5 (3) | comments 2

While most of us would never willingly consume a highly endangered species, doing so might be as easy as plucking sushi from a bento box. New genetic detective work from the Sackler Institute for Comparative ...


Microarray analysis improves prenatal diagnosis

Medicine & Health / Research

created Nov 17, 2008 | popularity not rated yet | comments 0

A "chip" or array that can quickly detect disorders such as Down syndrome or other diseases associated with chromosomal abnormalities proved an effective tool in prenatal diagnosis in a series of 300 cases at Baylor College ...


DNA 'tattoos' link adult, daughter stem cells in planarians

Biology /

created Sep 10, 2008 | popularity 5 / 5 (2) | comments 0

Unlike some parents, adult stem cells don't seem to mind when their daughters get a tattoo. In fact, they're willing to pass them along. Using the molecular equivalent of a tattoo on DNA that adult stem cells (ASC) pass to ...


Our penchant for rarity could threaten conservation efforts

Biology / Ecology

created Apr 22, 2009 | popularity not rated yet | comments 0

Rare plant and animal species are like rare stamps or coins: they are perceived to be inherently more valuable to people, whatever they look like. Researchers Elena Angulo and Franck Courchamp, from Université de Paris-Sud, ...


Sleuths follow lung stem cells for generations to shed light on healing

Biology / Cell & Microbiology

created Jun 04, 2009 | popularity 5 / 5 (1) | comments 0

More than one kind of stem cell is required to support the upkeep and repair of the lungs, according to a new study published in the journal Cell Stem Cell.


New Device Shines Light on Disease-Causing Molecules

Biology /

created Jul 08, 2008 | popularity not rated yet | comments 0

If a doctor could identify a single molecule indicating the presence of a disease before the disease has a chance to harm the patient, the practice of medicine and the health of patients would be greatly improved. That’s ...