Thursday, May 27, 2010

3-D Mobile Phones

The Samsung B710 Phone looks like a typical smart phone. However, turn it to the side, and the image changes from 2-D to 3-D. A technologist spent over 10 years creating software that converts 2-D content into 3-D content. This, fortunately, can solve the problem of always having to wear 3-D converting glasses. This software works by changing depth perception based on estimations. This is very similar to the 3 dimensional TV’s released in January. However, this will be used in smart phones, in the palm of your hand. This software was built into the Samsung B710, and was released in 2007 in South Korea. The applications that will be released can consist of mobile games and video. At the moment, there is very little 3D content available. This extraordinary phone contains a TV tuner, and a full 3D camera, as well as a normal camera, and even Picture in Picture feature, which allows you to watch two TV channels at once on one screen. Nobody knows if this phone will be released in other places around the world, however, it wouldn’t be surprising if this unique phone is released in the US as well as other countries.




http://www.technologyreview.com/communications/25081/
http://www.pocket-lint.com/news/28072/samsung-sch-b710-3d-mobile-phone

Implantable Electronics

The next gen of implantable medical devices will rely on a high-tech material forged not in a factory, but in the belly of a worm. this new device is being developed at Tufts University by biomedical engineer Fiorenzo Omentteo, it is a flexible silicon electronics held together by a silk film. the devices would incorporate antibodies or enzymes into the film which will allow other medical devices to detect biomarkes; and the best part over time, the array will just dissolve away, eliminating the need for surgery to remove the implants. the implated electronics could provide a clearer picture of whats going on inside the body' like monitoring chronic diseases or progress after surgery, but there are still some problems with the biocompatility restrict their use because the materials used may cause a immune reactions when implanted.

Today's implantable devices must be surgically replaced or removed at some point, so its only worth using an implant for important devices such as pacemakers. Silk is biodegradable and soft, can carry light like optical glass or made into transistor or wire. this means that silk can sit right on top of tissues without irritation for years or just a instance.Soon we may have are health charts in our arm or legs. and our doctors can montior our health wireless and our own bodies tells us of a problems well bofore it happens.



http://www.technologyreview.com/biomedicine/25086/

Wednesday, April 14, 2010

Keeping Medical Data Private

People have always been concerned about the quite common, practice of storing thier medical information on computers into "private databases". "The problem is, stuff that's considered anonymous really isn't," says Michael Swiernik, director of medical informatics at the University of California, Los Angeles. Patients are wary of whether or not they are truly protected and with the development of a new algorithm, we may be on the way to better ensuring that medical data can be securely stored on computers. Researchers at Vanderbilt University have created an algorithm designed to protect the privacy of patients while maintaining researchers' ability to analyze vast amounts of genetic and clinical data to find links between diseases and specific genes or to understand why patients can respond so differently to treatments. The increasing availability of electronic medical records makes it easier to group patient files into huge databases where they can be accessed by researchers trying to find associations between genes and medical conditions--an important step on the road to personalized medicine. Though the patient records in the databases are "anonymous", they still have a numerical code called the the ICD, which can easily be tracked by a hacker. Bradley Malin and his colleagues found that they could identify more than 96 percent of a group of patients based solely on their particular sets of diagnosis codes.Researchers want to combine their clinical-code-protecting algorithm with other security mechanisms already in place, like protections for demographic information, to keep patient data as safe as possible. They also want to reach out to use more data outside of Vanderbilt, according to Grigorios Loukides, the study's lead author. "Generating data is expensive, and it's both good science and good etiquette to reuse data. The challenge is to do it while protecting people." says study author Malin.

Tuesday, April 13, 2010

Gold Nanosensors

Gold Nanosensors can now be implanted into the body to continuously monitor for blood clots. Gold Nanosensors are injected directly into the patient, allowing the doctor to measure protein concentrations by shining a laser light through the skin. This new technology will allow scientists to directly examine proteins and how they interact within a cell. Some of these proteins include ones that are involved in viral infections. 120 nanometers in diameter, the sensor consists of a silica core, encapsulated in a thin layer of gold. On top of the gold shell, are aptamers, or short strands of nucleic acids to bind to a specific molecule. When shining a laser on the aptamer, the molecule absorbs the light and will emit a characteristic spectrum allowing the doctor to view many different things. This new technology is not only cheap but it would provide easy monitoring for high-risk individuals and prevent clot-related deaths. Currently, research is being done at the University of Edinburgh in Scotland. Colin Campbell, a chemist at the University of Edinburgh leads the research. Researchers in Scotland have shown that the novel particles can accurately detect thrombin in blood samples, a biomarker for blood clots. For the time being there are not very many known aptamers that effectively target specific proteins. This is an area of medicine that would have to be further explored for the technology to gain more widespread application.


http://www.technologyreview.com/biomedicine/25031/page2/


http://www.popsci.com/science/article/2010-04/gold-nanosensors-continuously-monitor-blood-clots


Monday, April 5, 2010

Robotic Planes Chase After Climate Data

NASA has newly begun to fly an unmanned aircraft, controlled completely by a robot and outfitted with scientific instruments that observe Earth's atmosphere with extensive detail. These newly fitted robo planes will help scientists and researchers on Earth to collect and analyze an even greater amount of data to help predict our climate and weather, more accurately. The three aircraft, have been named the Global Hawks, and can fly for up to 30 hours and travel for huge distances and at high altitudes; they can also gather more precise data than satellites and can be stationed to monitor an area for extended periods of time. They are able to obtain certian tymes of atmospheric and earth science data critical to helping us better understand nature's weather patterns. According to Robbie Hood, director of the National Oceanic and Atmospheric Administration committee, "they could fly over a hurricane to monitor its intensity changes or fly over the arctic to monitor sea ice changes in higher detail". The planes will be equipped with 11 different instruments to take measurements and map aerosols and gases in the atmosphere, profile clouds, and gather meteorological data such as temperatures, winds, and pressures. The instruments onboard for the first mission include: a LIDAR instrument that uses a laser pulse to measure the shape, size, and density of clouds and aerosols; a spectrograph that measures and maps pollutants like nitrogen dioxide, ozone, and aerosols; an ultraviolet photometer for ozone measurements; a gas chromatograph to calculate greenhouse gases; a handful of other instruments that can accurately measure atmospheric water vapor and ozone-depleting chlorofluorocarbons ; and high-definition cameras to image the ocean colors and learn about their biological processes. NASA acquired the aircraft from the U.S. Air Force in 2007. They were originally developed for surveillance and reconnaissance missions. Now researchers are modifying them for their first extensive earth science missions. The researchers will also be able to sample parts of the atmosphere that they have not been able to reach or monitor for long durations--the upper troposphere and lower stratosphere. That part of the atmosphere is "a crucial region that responds to and contributes to climate change at the surface, and we have come to realize that it is highly undersampled," says David Fahey, co-project scientist and a research physicist at NOAA's Earth Science Research Lab in Boulder, CO.
The planes are really robotic satellite-aircraft hybrids thatwill hopefuully revolutionize the way we do science. One of the eventual targets will be to study hurricanes in the Caribbean, and will include a new suite of instruments for the planes. These may be a critical component in helping us to better predict and prepare for future weather disasters.

Sunday, April 4, 2010

Fingertip Bacteria Helps In Forensics

Sometimes on a crime scene, a fingerprint can be only partial or can't identify a person. Scientists have discovered a new way to identify a person from the DNA of the bacteria on a person's fingertip.

In an experiment to test the effectiveness of bacteria analysis, scientists took swabs from three computer keyboards and compared bacterial gene sequences with those from the fingertips of the keyboard owners. There findings concluded that even with a small surface such as a computer key to test from, the correct person could be found.

Could this new and innovative way of identification be as trusted as blood or an actual fingerprint? Time and further research will tell.






Wednesday, March 31, 2010

IKAROS: The First Step to Interplanetary Travel

Fuel is not only a problem for travel on Earth. In order to successfully propel a rocket into space, enormous amounts of fuel are needed. In fact, 95% of a rocket's weight at launch is from fuel. The Solar Sail concept, which has been discussed as early 400 years ago, seems to be the clear solution to such an issue now that the technology has finally been developed.

In layman's terms, solar-powered spacecrafts use the energy of the sun in order to propel through space. This eliminates the need of an engine. These spacecrafts only require three things: a continuous force exerted by the sun, an enormous, ultra thin mirror, and a separate launch vehicle. The electromagnetic radiation contained within light exerts a force on the sails. The photons given off by the sun reflect off of the giant mirror. In the vacuum of space, even a small collision will cause something to move. The bigger the mirror, the more collisions and the faster the spacecraft moves. This method causes the spacecraft to move about 5x faster than a traditional one, all while using significantly less energy.

The next step in solar sail travel is contained in the IKAROS project. The IKAROS (Interplanetary Kite-craft Accelerated by Radiation Of the Sun), will use a Solar "Power" Sail. The difference between this and a solar sail is that the "power" sail collects electricity in the solar cells of its membrane. But, like the solar sail, it still gets accelerated by the radiation of the sun. The advantage of the "power" sail is that it creates (to a certain extent) a "hybrid" engine. Space missions with such sails will be much more flexible as the engine can rely on both photon acceleration and ion-propulsion engines driven by solar cells. Hopefully, scientists believe, the continuation of research on solar "power" sails will yield much longer space travel missions that would ultimately result in interplanetary travel.

The IKAROS will launch later in 2010 in order to test the effectiveness of the sails. The shape of the membrane is square, with a diagonal distance of 20m. It is made of polyimide a mere 0.0075mm thick. In addition to the thin film solar cells, the steering devices and dust-counter sensors are fitted to the membrane. The sail will rotate at 20rpm for several weeks in space in order to generate solar power with a minimum success level. Within a year, sail navigation and acceleration will occur at full success level.

http://science.howstuffworks.com/solar-sail1.htm
http://www.jspec.jaxa.jp/e/activity/ikaros.html
http://en.wikipedia.org/wiki/Solar_sail