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Towards Creating Blood Vessels

January 26, 2010

Researchers at Weill Cornell Medical College developed a simple way to increase production of endothelial cells — which line the interior of blood vessels and give rise to blood vessels — by more than 30-fold.

The cells might one day by used to create blood vessels in engineered tissue or administered to patients directly to repair injury after heart attack or stroke, resupplying blood to damaged organs.

Genetic building blocks may have formed in space

June 16, 2008
The Murchison meteorite (Chip Clark/Smithsonian Institution)

Ring-like carbon molecules that are essential for the creation of nucleic acids like DNA and RNA might have formed in a meteorite called Murchison before it landed in Australia in 1969, according to Zita Martins, a chemist at Imperial College London.

The ratio of carbon-13 to carbon-12 was unusually high in the two nucleobases, leading the team to conclude the materials likely formed in the meteorite itself… read more

How to Burn a Three Terabyte CD

September 15, 2006

A new nano-optical device can focus laser light tighter than traditional optics, which could may possible storage of three terabytes on a CD-size disc.

Startup Says Quantum Crypto Is Real

November 6, 2003

MagiQ Technologies Inc. announced it’s shipping the first security system based on quantum cryptography.

3-D scaffold provides clean, biodegradable structure for stem cell growth

February 2, 2010

University of Washington researchers have built a three-dimensional scaffold out of a natural material, chitosan, that mimics the binding sites for stem cells and allowing the cells to reproduce on a clean, biodegradable structure.

Growing the cells in three dimensions better resembles conditions in the human body. It also allows for mass production, which will be needed for any clinical applications.

Perfecting a solar cell by adding imperfections

June 23, 2008

New research at Santa Fe Institute, Michigan State University, and Columbia University shows that a film of carbon nanotubes may be able to replace two of the layers normally used in a solar cell, with improved performance at lower cost.

Exposing the carbon nanotubes to ozone made the carbon nanotubes better catalysts, with more than a ten-fold improvement, and replaced expensive platinum. And making them longer improved both conductivity… read more

Seeing Molecular Machines

October 2, 2006

A fascinating animation of molecular processes in a cell shows a number of molecular machines–ribosomes, motors, and more–working to move molecules and structures around a cell, and even to create the structures.

Single speaker unit creates surround sound

November 13, 2003

A home theatre system that produces surround sound using a single speaker unit has been unveiled.

Nirotek’s DVD player, the NIRO 1.1 PRO, achieves the same effect with five individual speakers packed horizontally into a single case. To achieve the surround sound effect, an on-board computer manipulates the signal to each speaker using head related transfer functions that mimic the effects used by the brain to identify the direction… read more

Service providing AI-based real-time matching of content with individuals funded

February 9, 2010

Cognitive Match, which applies real-time AI, learning math, and semantic processing technologies to increase response rates for online businesses, has received a $2.5M investment.

The service is targeted to companies that are marketing via websites and generate over $1M annually through their website, Cognitive Match CEO Alex Kelleher told KurzweilAI.net.

“We work with 4 UK universities, and the professors at those universities who are leaders in… read more

Researchers develop new technique for fabricating nanowire circuits

June 27, 2008

Scientists at Harvard University and German universities of Jena, Gottingen, and Bremen have developed a reproducible, high-volume, low-cost fabrication method for integrating nanowire devices directly onto silicon.

The method incorporates spin-on glass technology, used in silicon integrated circuits manufacturing, and photolithography, transferring a circuit pattern onto a substrate with light. These devices can then function as light-emitting diodes, with the color of light determined by the type of semiconductor… read more

Pebbly rocks testify to old streambed on Mars

May 31, 2013

nasa_streambed

Detailed analysis and review have borne out┬áresearchers’ initial interpretation of pebble-containing slabs that NASA’s Mars rover Curiosity investigated last year: they are part of an ancient streambed.

The rocks are the first ever found on Mars that contain streambed gravels. The sizes and shapes of the gravels embedded in these conglomerate rocks — from the size of sand particles to the size of golf balls… read more

Tiny Genome May Reflect Organelle in the Making

October 12, 2006

The record for world’s smallest genome has been smashed by a bacterium that lives inside a sap-feeding insect. The microbe is missing almost half of the genes thought to be essential for its kind to persist, raising the possibility that it is becoming an organelle similar to a mitochondrion or chloroplast.

New Machine Can Detect Drugs Like Dogs

November 25, 2003

Georgia Tech researchers have developed a machine that can instantly sniff out illegal drugs.

From a few feet away, the device can “smell” as little as one-trillionth of a gram. So far it’s only programmed to detect cocaine, but it could be developed to sniff out other drugs, anthrax, bombs, chemical agents and even cancerous cells.

Economics Improve for First Commercial Cellulosic Ethanol Plants

February 17, 2010

Novozymes, the world’s largest industrial enzyme producer, has launched a new line it says will yield ethanol from plant wastes at an enzyme price of about 50 cents a gallon — a 80 percent price drop from two years ago.

This will help bring cellulosic ethanol production prices to under $2 a gallon by 2011, a cost on par with both corn-based ethanol and gasoline at current U.S. market… read more

Do we have the technology to build a bionic human?

July 6, 2008

Scientists have developed artifical bones, cartilege, lymph nodes, hands, arms, some complete organs, and even parts of the brain, but there are potential downsides, including immunorejection, possible cancer (from stem cells), and corrosion and wear and tear with electronic devices.

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