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Nanoparticles cross blood-brain barrier, enhance medication delivery and MRI performance

May 2, 2012

structure_of_nanoplatforms

Researchers at Harvard-affiliated McLean Hospital have developed a new category of non-toxic, protein-based ”green” nanoparticles that can non-invasively cross the blood brain barrier and transport various types of drugs.

In an article published May 1, 2012 online in PLoS ONE, Gordana Vitaliano, MD, director of the Brain Imaging NaNoTechnology Group at the McLean Hospital Imaging Center, reported that clathrin protein, a ubiquitous protein found in human,… read more

Cheap, Superefficient Solar

November 9, 2006

Technologies collectively known as concentrating photovoltaics are starting to enjoy their day in the sun, thanks to advances in solar cells, which absorb light and convert it into electricity, and the mirror- or lens-based concentrator systems that focus light on them. The technology could soon make solar power as cheap as electricity from the grid.

Progress Toward Artificial Tissue?

May 18, 2009

A highly porous, sponge-like material whose mechanical properties closely resemble those of biological soft tissues has been developed by Australian and Korean researchers.

The new concept uses DNA strands as a matrix; the strands completely “wrap” the scaffold-forming carbon nanotubes in the presence of an ionic liquid, networking them to form a gel. This gel can be spun: just as silk and synthetic fibers can be wet-spun for textiles,… read more

Lost? Hiding? Your Cellphone Is Keeping Tabs

December 21, 2003

Personal location devices are beginning to catch on, largely because of a federal mandate that by late 2005, wireless carriers be able to automatically locate callers who dial 911.

Millions of cell phones already keep track of their owners’ whereabouts, using GPS signals. Analysts predict that as many as 42 million Americans will be using some form of “location-aware” technology in 2005.

“We are moving into a world… read more

When It Comes To Metal, Smaller Is Stronger: Now Scientists Know Why

January 3, 2008

Scientists have reported that a previously unobserved process known as “mechanical annealing” explains why structures made of metal get stronger as their dimensions shrink to the micrometer scale or less.

Gene duplications may define who you are

November 23, 2006

Two separate studies of the human genome have revealed an unsuspected amount of variation between people in the number of copies of genes they have.

Such variations appear to involve as much as 12 percent of our DNA, so as personalized genetic sequencing becomes more common, questions are raised about what constitutes a “normal” genome.

Diabetes heart risk ‘can be cut’

May 22, 2009

A Cambridge University study of 33,000 people found getting blood sugar levels closer to the level for healthy people — 4% to 5% — could cut the risk of heart attacks by 17%.

The current recommended level in the UK is 7%.

Tiny particles ‘threaten brain’

January 9, 2004

Microscopic pollutant particles given off by traffic and industry can enter the bloodstream and the brain after being inhaled, scientists have found.

The particles are known to cause lung damage in susceptible patients, and are implicated in cardiovascular disease. Experiments on rats and humans have now discovered they can penetrate further into the body, including the brain, with unknown results.

UK scientists are calling for vigilance over the… read more

TiVo to Feature Web Video

January 8, 2008

TiVo Inc. said Monday its subscribers will soon be able to select video from the Web for playback on televisions through its digital video recording service, building on its strategy to extend its DVR beyond regular TV.

Have Camera Phone? Yahoo and Reuters Want You to Work for Their News Service

December 5, 2006

Hoping to turn the millions of people with digital cameras and camera phones into photojournalists, Yahoo and Reuters are introducing a new effort to showcase photographs and video of news events submitted by the public.

Restoring Sight

May 29, 2009
(Steve Gschmeissner/Photo Researchers)

Scientists aim to treat retinitis pigmentosa by developing novel gene therapies using channelrhodopsin-2 (a light-sensitive protein derived from algae) and similar tools to make different retinal cells, such as bipolar cells (shown in pink in the middle section of the photo), responsive to light.

Scientists believe that channelrhodopsin targeted toward different cell types could ultimately treat a broader range of diseases, including Parkinson’s and epilepsy.

The End Game

January 19, 2004

The Army’s Massive Multiplayer Environment will move simulation training into a wider domain of realism and soldier participation.

Crash Warning System Monitors Nearby Traffic And Warns Of Possible Collisions

January 14, 2008

European researchers have demonstrated a software-based collision warning system for cars that could alert the driver several seconds in advance of an impact.

The Collision Warning System prototype finds the position, speed and trajectory of neighboring and oncoming traffic using GPS and the Vehicle2Vehicle (V2V) car communication protocol.

Researchers Find Surprise in Makeup of a Comet

December 15, 2006

Comets are not all made of interstellar dust and ice, but instead may contain material shot from the heart of the solar system during its tumultuous birth, scientists reported Thursday after examining pristine particles of a comet that were brought back by the Stardust spacecraft.

Targeting the Brain with Sound Waves

June 4, 2009
(William Tyler, Arizona State University)

Ultrasonic waves could one day be used as a noninvasive alternative to deep-brain stimulation (DBS) and vagus nerve stimulation in treating neurological disorders, says William Tyler, a neuroscientist at Arizona State University, who has started a company called Supersonix to commercialize the technology.

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