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Scientists invent 1.2nm molecular gear

June 16, 2009

A 1.2 nanometer molecular gear has been developed by scientists at the Agency for Science, Technology and Research.

Scientists isolate genes that made 1918 flu lethal

December 30, 2008

By mixing and matching a contemporary flu virus with the “Spanish flu” — a virus that killed between 20 and 50 million people 90 years ago in history’s most devastating outbreak of infectious disease — researchers have identified a set of three genes that helped underpin the extraordinary virulence of the 1918 virus.

Scientists learn from nature to split water

August 18, 2008

An international team of researchers led by Monash University has used manganese clusters (found in plants) to replicate a key process in photosynthesis paving the way to using sunlight to split water into hydrogen and oxygen.

Scientists Learn Why The Flu May Turn Deadly

May 8, 2009

Researchers from the Children’s Hospital of Philadelphia have discovered important clues about why influenza is more severe in some people than it is in others.

The influenza virus can paralyze the immune systems of some otherwise healthy individuals, leading to severe secondary bacterial infections, such as pneumonia.

Scientists look high in the sky for power

May 10, 2007

Scientists are eyeing the jet stream, an energy source that rages night and day, 365 days a year, just a few miles above our heads. If they can tap into its fierce winds, the world’s entire electrical needs could be met, they say.

Dozens of researchers in California and around the world believe huge kite-like wind-power generators could be the solution.

Scientists look to sperm to power nanobots

January 3, 2008
(Atsushi Asano/Cornell University)

A tiny assembly line using ATP, which powers the whip-like tail of sperm, could be harnessed to propel future nanobots or other tiny medical devices inside the human body, Cornell University scientists report.

For their research, the scientists used mouse sperm proteins as templates so the proteins stuck to the surface of a tiny gold chip covered with nickel ions.

Scientists lose track of time

June 12, 2003

What time is it? No one knows for sure. In a controversy reminiscent of the Year 2000 bug, experts can’t agree about whether to continue the long-standing practice of inserting occasional “leap seconds” into coordinated universal time, Nature reports today.

Since 1972, 32 leap seconds have been added to universal time to keep it in synch with the rotation of the Earth as it slows down, which is needed… read more

Scientists make a leap in quantum computing

February 8, 2010

Princeton University and UC Santa Barbara scientists have succeeded in trapping one or two individual electrons to form spin qubits (quantum bits), allowing the electrons to behave quantum-mechanically for a long period of time.

Previous experiments affected all the electrons uniformly in their immediate surroundings and were slow. The new method allows for extremely fast quantum operations in the nanosecond domain and overcomes a major hurdle in the quest… read more

Scientists make breakthrough in single-molecule sensing

February 7, 2008

In a study that could lay the foundation for mass-produced single-molecule sensors, Rice University researchers have demonstrated a means of simultaneously making optical and electronic measurements of the same molecule.

Scientists make cat that glows in the dark

October 24, 2008

“Mr. Green Genes” has eyes, gums and tongue that glow a vivid lime green under ultraviolet light, the result of a genetic experiment at the Audubon Centre for Research of Endangered Species in New Orleans.

The experiment was intended to learn whether the enhanced green fluorescence protein gene (which also functions as a marker) could be introduced harmlessly into the feline’s genetic sequence to create a transgenic cat.… read more

Scientists make chemical cousin of DNA for use as new nanotechnology building block

April 30, 2008
(Biodesign Institute at Arizona State University)

Arizona State University’s Biodesign Institute scientist John Chaput and his research team have made the first synthetic self-assembled nanostructures, composed entirely of glycerol nucleic acid (GNA), a synthetic analog of DNA.

With GNA, the five carbon sugar commonly found in DNA (deoxyribose) is substituted by glycerol, which contains just three carbon atoms.

Unlike DNA and proteins, which have evolved to exist only as right-handed, the GNA… read more

Scientists Make Embryos for Cells

July 11, 2001

Human embryos have been created in the lab for the sole purpose of harvesting their stem cells for the first time.

Until now, scientists had derived stem cells only from excess embryos donated from infertility treatments. In this case, the scientists approached donors and informed them that their eggs and sperm would be used to develop embryos for stem-cell research.

The work, conducted by researchers at the Jones… read more

Scientists make human blood from human skin

November 8, 2010

skin-blood5

In a major breakthrough, scientists at McMaster University in Canada have discovered how to make human blood from adult human skin.

The discovery, published Sunday in Nature, could mean that in the foreseeable future, people needing blood for surgery, cancer treatment or treatment of other blood conditions like anemia will be able to have blood directly created from a patch of their own skin to provide… read more

Scientists Make Paralyzed Rats Walk Again After Spinal-cord Injury

September 21, 2009

A combination of drugs, electrical stimulation and regular exercise can enable paralyzed rats to walk and even run again, UCLA researchers have discovered — regeneration of severed nerve fibers is not required/

The finding may have implications for human rehabilitation after spinal cord injuries.

The scientists administered drugs that act on the neurotransmitter serotonin and applied low levels of electrical currents to the spinal cord below the point… read more

Scientists Make ‘Perfect’ Nanowires

January 24, 2008

European scientists have created silicon nanowires that are perfect, down at the single-atom level.

The identical wires have no bumps, bends, or other imperfections. The full array of nanowires is also highly parallel, and each wire is an excellent metallic conductor.

Nanowires play a key role in developing nanoelectronics applications, and silicon nanowires are particularly important because of the central function that silicon plays in the semiconductor industry… read more

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