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Simulation maps nano patterns

April 14, 2004

Researchers from the University of Michigan have used a computer simulation to develop a method of chemically building nanoscale patterns on a surface. The patterns, which include neatly-positioned groups of wavy and straight lines, dots, boxes within boxes, and mixes of dots and lines, would be relatively inexpensive to produce and could form the basis for nanoscale machines.

To make the patterns, the researchers simulated the application of monolayers,… read more

Simulation: what if digital WMDs attack America?

"An economic extinction-level event"
August 11, 2012

(Credit: iStockphoto)

What would happen if terrorists or an enemy nation got their hands on digital weapons of mass disruption — like Stuxnet, Flame, or the newly reported Gauss — and used them to attack America?

How would it impact our economy, our banking system, our transportation system? How would IT organizations respond? Could we, in fact, defend ourselves?

“Those were questions I recently… read more

Sin Bins For Worst Families

August 3, 2009

The government of England plans to put 20,000 more problem families under 24-hour CCTV supervision in their own homes to ensure that children attend school, go to bed on time and eat proper meals.

Singapore scientists create stem cells from a drop of blood

DIY finger prick technique opens door for extensive stem cell banking
March 21, 2014

Schematic on finger-prick blood isolation and treatment for cellular reprogramming (credit: Loh Yuin Han, Jonathan, IMCB)

Scientists at the Agency for Science, Technology and Research’s (A*STAR) Institute of Molecular and Cell Biology (IMCB) have developed a method to generate human induced pluripotent stem cells (hiPSCs) from a single drop of finger-pricked blood.

The method also enables donors to collect their own blood samples, which they can then send to a laboratory for further processing. The easy access to blood samples using the new… read more

Singapore’s first driverless vehicle

August 19, 2013

ntu_driverless

Nanyang Technological University (NTU) scientists have developed Singapore’s first driverless shuttle transportation system.

The Energy Research Institute at NTU will test and optimize Induct’s :”NAVIA” electric shuttle to enable it to intermingle safely with traffic in Singapore.

NAVIA can carry eight passengers and has a maximum speed of 20.1 km/h.

The partnership will develop new charging technologies such as wireless induction and new supercapacitors for… read more

Single atom memory device stores data

September 11, 2002

A workable atomic memory that uses individual atoms to store information has been developed by physicists, representing a density equivalent to 250 terabits of data per square inch.

In the experiment, each single silicon atom was added or removed from a block of twenty others using a scanning tunnelling microscope.

According to Tom Theis, director of physical sciences at IBM’s T.J. Watson Research Center, it may one day… read more

Single Atom Quantum Dots Bring Real Devices Closer

February 4, 2009

Scientists at Edmonton’s National Institute for Nanotechnology have invented quantum dots less than a nanometer in diameter and containing only one atom of silicon.

By controlling electrons at a smaller scale than transistors, the quantum dots could allow for silicon-based computers 1,000 times smaller in size and with a 1,000-times reduction in power consumption.

Single atom stores quantum information

May 3, 2011

write_to_atom

Researchers at the Max Planck Institute of Quantum Optics in Garching, Germany have stored quantum information in a single atom.

The researchers wrote the quantum state of single photons into a rubidium atom and read it out again after a discrete storage time.

They say this technique can be used in principle to design powerful quantum computers and to network them with each other across large distances.… read more

Single dose of sleeping-sickness drug reverses autism-like symptoms in mice

June 18, 2014

This image depicts the transmission electron micrograph of a cell mitochondrion (credit: Thomas Deerinck, NCMIR, UC San Diego)

An almost century-old drug approved for treating sleeping sickness also restores normal cellular signaling in a mouse model of autism, researchers at the University of California, San Diego School of Medicine report.

The mice were the human biological age equivalent of 30 years old.

The drug, Suramin, was first synthesized in 1916 and is used to treat trypanosomiasis or African sleeping sickness, a parasitic disease.… read more

Single Gene Could Lead to Long Life, Better Mental Function

December 27, 2006

Researchers at the Institute for Aging Research at Albert Einstein College of Medicine have discovered a gene that apparently protects the brain and prolongs life.

Centenarians who passed a common test of mental function were two to three times more likely to have a common variant of a particular gene, called the CETP gene, than those who did not.

Single lens allows microscopes to capture 3D images

March 22, 2011

Lens enables microscopes to capture 3-D images (Photo credit: Kevin Fitzsimons/Ohio State University)

Engineers at Ohio State University have invented a single lens that enables microscopic objects to be seen from nine different angles at once to create a 3D image, says Allen Yi, associate professor of integrated systems engineering.

Other 3D microscopes use multiple lenses or cameras that move around an object; the new lens is the first single, stationary lens to create microscopic 3D images by… read more

Single molecule absorption spectroscopy developed

December 21, 2005

University of Illinois at Urbana-Champaign researchers have developed a powerful new tool for probing molecular structure on surfaces, combining the chemical selectivity of optical absorption spectroscopy with the atomic-scale resolution of scanning tunneling microscopy.

“First, the sample molecule is placed on a transparent silicon substrate,” said Joseph Lyding, a professor of electrical and computer engineering and a researcher at the Beckman Institute. “Laser light will either be absorbed by… read more

Single molecule makes electronic switch

August 8, 2006
Single molecules as electronic components © IBM

A single organic molecule trapped between two electrodes acts as a switch and has a memory of the type used in data storage, researchers have found.

A positive voltage pulse between the electrodes was enough to change the bipyridyl-dinitro oligophenylene-ethynylene dithiol (BPDN-BT) molecule so that it became a better conductor of current, while a negative voltage returned the molecule to its less conductive state.

Single nanomaterial yields multiple laser colors

May 1, 2012

CQD film surface analyzed by atomic force microscopy

Engineers at Brown University and QD Vision Inc. have created nanoscale single crystals that can produce the red, green, or blue laser light needed in digital displays.

The size determines color, but all the pyramid-shaped quantum dots are made the same way of the same elements. In experiments, light amplification required much less power than previous attempts at the technology. The team’s prototypes are the first lasers… read more

Single photons bounced off orbiting satellite

March 18, 2008

Physicist Anton Zeilinger’s group in Vienna have announced that they had taken the first step in setting up a global system of decoherence-free, secure quantum communication by bouncing single photons off an orbiting satellite some 1400km above the Earth.

Next step: build and launch a satellite that can produce and transmit entangled photons.

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