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St Lawrence of Google

January 13, 2006

Google is already working on a massive and global computing grid. Eventually, says Mr Saffo, “they’re trying to build the machine that will pass the Turing test,” in other words, an artificial intelligence that can pass as a human in written conversations. Wisely or not, Google wants to be a new sort of deus ex machina.

Stable polymer nanotubes may have a biotech future

February 3, 2006

Scientists at the National Institute of Standards and Technology (NIST) have created polymer nanotubes that are unusually long (about 1 centimeter) as well as stable enough to maintain their shape indefinitely.

The nanotubes may have biotechnology applications as channels for tiny volumes of chemicals in nanofluidic reactor devices, for example, or as the “world’s smallest hypodermic needles” for injecting molecules one at a time.

References:

J.E. Reiner,… read more

Stable, self-renewing neural stem cells created

April 26, 2011

Stained Neuron

Researchers at the University of California, San Diego School of Medicine, the Gladstone Institutes in San Francisco and colleagues have reported the creation of long-term, self-renewing, primitive neural precursor cells from human embryonic stem cells (hESCs) that can be directed to become many types of neurons without increased risk of tumor formation.

To produce the neural stem cells, the researchers added small molecules… read more

Stacked graphene layers used to create novel electronic and photonic devices

October 17, 2012

Multilayer cake that works as a nanoscale electric transformer

Graphene and associated one-atom-thick crystals offer the possibility of a vast range of new materials and devices by stacking individual atomic layers on top of each other, new research from The University of Manchester shows.

In a report published inĀ Nature Physics, a group led Dr Leonid Ponomarenko and Nobel prize-winner Professor Andre Geim has assembled individual atomic layers on top of each… read more

Staged cyber attack reveals vulnerability in power grid

September 27, 2007

Researchers who launched an experimental cyber attack on an electrical power plant caused a generator to self-destruct, alarming the federal government and electrical industry about what might happen if such an attack were carried out on a larger scale.

Economist Scott Borg projects that if a third of the country lost power for three months, the economic price tag would be $700 billion.

Computer experts have long warned… read more

Stamp out common virus to beat brain cancer

May 27, 2008
(Getty)

Duke University Medical Center treated brain tumors known as glioblastomas by taking white blood cells from 21 patients, exposing them to parts of the cytomegalovirus (often found in these cancers), and injecting the cells back into the patients. Their preliminary results suggest that this technique is safe and effective.

“Because the immune system kills both the virus and the cell it resides in, we are hoping that… read more

Stamp-Size Plastic Chip Provides New Approach to Cryptography

September 22, 2002

Modern encryption techniques are tested every time someone makes a purchase over the Internet or spends electronic cash stored in smart cards. These strategies rely on so-called one-way functions, which are easy to execute in one direction (for instance, multiplying two prime numbers) but difficult to reverse (factoring a large number into two primes). With ever-increasing computer power and advances in quantum computing, however, such methods may soon become breakable.… read more

Stamping out low-cost nanodevices

June 1, 2011

SEM Gold

A simple technique for stamping patterns invisible to the human eye onto a special class of nanomaterials has been developed by researchers at Vanderbilt University.

The new method works with porous nanomaterialsĀ that are riddled with tiny voids, which give them unique optical, electrical, chemical, and mechanical properties. There are nanoporous forms of gold, silicon, alumina, and titanium oxide, among others.

The technique involves the… read more

‘Stamping’ self-assembling nanowires

October 20, 2008

Cornell researchers have created an innovative way to make and pattern nanoscale wires and other devices without requiring expensive lithographic tools; uses include computer memory and circuits, and quantum dots.

They coated gold nanoparticles suspended in water with a synthetic-DNA-based ligand that adheres to the metal and to water. Adjusting the DNA lengths can precisely control the distance between the particles to make them assemble into orderly superlattices, rather… read more

Stamps create DNA nanoarrays

December 15, 2005

Ohio State University researchers have come up with a modified molecular combing technique for creating arrays of stretched DNA molecules that could have applications in nanoelectronics, biological or chemical sensors, and genetic analysis and medical diagnosis.

By patterning a large quantity of stretched DNA molecules into a well-defined array of nanowires, parallel and automated analysis may be realized to achieve higher throughput and reliability, they believe.

Standing in Someone Else’s Shoes, Almost for Real

December 2, 2008

Neuroscientists have presented evidence that they can create a “body swapping” illusion by using VR helmets, showing that the brain, when tricked by optical and sensory illusions, can quickly adopt any other human form, no matter how different, as its own.

Based on virtual-reality experiments, the technique could have a profound effect on a range of therapeutic techniques. In these studies, researchers create avatars that mimic a person’s every… read more

Stanford announces $100 million energy institute

January 14, 2009

Stanford University has received $100 million to create a new energy institute where scholars can study everything from solar cells to energy markets and economics.

Stanford bioengineers close to brewing opioid painkillers

A decade-long effort in genetic engineering is close to re-programming yeast cells to make palliative medicines
August 27, 2014

tanford Bioengineer Christina Smolke has been on a decade-long quest to genetically alter yeast so they can "brew" opioid medicines in stainless steel vats, eliminating the need to raise poppies and then industrially refine derivatives of opium into pain pills. (Credit: Poppy image created by Rachel Sakai)

Stanford bioengineers have hacked the DNA of yeast, reprograming these simple cells to make opioid-based medicines* via a sophisticated extension of the basic brewing process that makes beer.

Led by Associate Professor of Bioengineering Christina Smolke, the Stanford team has already spent a decade genetically engineering yeast cells to reproduce the biochemistry of poppies, with the ultimate goal of producing opium-based medicines, from start to… read more

Stanford builds a better virtual world, one tree (or millions) at a time

January 8, 2008

Stanford researchers are out to prove that object construction in virtual worlds can be sophisticated without being difficult.

Stanford engineers discover neural rhythms drive physical movement

June 4, 2012

stanford_brain_rythms

In a significant departure from earlier models, neural engineers and neuroscientists working at Stanford University have developed a new model for the brain activity underlying arm movements: motor neurons do not represent external-world parameters as previously thought, but rather send a few basic rhythmic patterns down the spine to drive movement.

The finding has implications in prosthetics, the understanding of motor disorders and other uses… read more

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