ASHOKE SEN-nominated for the most richest prize

          As an indian,it  is a great news for us that Ashoke Sen, a indian physicist ,who is selected for the Fundamental Physics Prize of this year.I think most of the people are unaware of that prize,because it is started from this year only.the prize money is 16.75 crore.

           Ashoke Sen is a professor in physics of Harischandra Research institution,Allahabad.and he(56) is
a former student of presidency college and iit kanpur.he is associated with String theory.

m.n.saha

Latest Reasearch on Making Electric Currents Visible

A research group in Kobe University’s Graduate School of Science, led by Associate Professor Kenji Kimura, has developed a magnetic imaging device that makes electric currents visible. The device will go on sale in summer 2012.

“This device gives a picture showing where electric currents are flowing in a circuit. In some cases, we’ve actually converted the images to measurements. When you charge a battery, electricity accumulates inside, and using this device, you can see where it accumulates. When a battery’s been used for a long time, it ages, and it can’t be charged anymore. This device shows where inside the battery is damaged and can’t be charged. You can do diagnostics, like with X-rays and MRI in hospitals, but for batteries instead. That’s the kind of device we’re actually presenting here.”

Also, in the near future, the researchers plan to start developing medical diazgnostic equipment.

“At hospitals, MRI and CT scans are done inside a chamber. For MRI, the patient has to keep still for 20 minutes or so. With our method, internal imaging is done by measuring magnetism from the surface. We think that, using this method, abnormalities inside the body could be detected very fast – and with high resolution.”

This device will be marketed and manufactured by Integral Geometry Instruments, a Kobe University venture. The company aims to tie up with electronics companies and automakers, and in due course, with medical instrument manufacturers. The price for this system hasn’t been decided yet, but it’s expected to be 20-30 million yen ($250,000-375,000).

Electrical Clothing

One of the future inventions that could greatly impact our lives are nanoribbons.

Rubber films developed by engineers at Princeton University could power mobile devices and other electronic devices.

The silicone sheets are embedded with ceramic nanoribbons (piezoelectric ribbons) that generate electricity when flexed, converting mechanical energy to electrical energy.

Materials made of this material, such as shoes, would harvest electrical energy created from walking and power everything from an ipod to a pacemaker.

The nanoribbon strips are so narrow that 100 strips fit side-by-side in a space of a millimeter. The strips are then embedded into clear sheets of silicone rubber to create a chip.

These sheets could be woven into fabric and placed against any moving area on the body to create electricity.

For example, a vest made from this material could take advantage of breathing motions to generate energy.

Nanoribbons are highly efficient in converting about 80% of mechanical power into electricity.

Self-Heating Roads Save Cars From Icy Conditions

When it comes unpredictable winter weather, maintaining safe driving conditions is a major concern. Luckily, over the past few years researchers at the University of Houston have made some great strides in turning the threat of icy roads into a worry of the past. Their self-heating roads are embedded with sheets of carbon nanofiber that are warmed by an electrical element. It only takes two hours and 6 watts of power to take a block of concrete from -10 to 0 C. We probably won’t see streets across the states upgraded with the technology come December, but areas known for having dangerously icy conditions could be prime candidates for the first installations.

Artificial Muscles to Propel Nanobots Through the Body

Nanotechnology has already had a significant impact on the world of medical science – however the next generation of nano-scale medical technology will blow your mind. For example, researchers from the University of British Columbia are currently working on a line of nanobots that will aim to diagnose and heal the body from the inside. In order to accomplish this amazing feat they have developed artificial muscles that are extremely flexible and strong enough to rotate objects a thousand times their own weight. By spinning carbon nanotubes into helical yarns, researchers were able to control the yarn with an electrochemical charge that causes them to twist and untwist. The muscle can be incorporated into bots with artificial flagella, or tiny tails that would rotate to propel them.

Nanotech Water Purifying Tea Bag

Millions of people around the world have limited access to drinking water – and diseases caused by contaminated water sources kill 1.8 million people each year. As both private and public entities continue to look for viable solutions to the problem, one promising development comes to us from South Africa, where researchers have used nanotechnology to create a water-purifying tea bag that costs just half a cent. In order to activate the tea bag, the user places it into the neck of a water bottle and then drinks water that passes through it. The design is portable and instantly effective! However, none of this would be possible without the help of nanotechnology – researchers have combined ultra-thin, nano-scale fibers with grains of activated carbon to filter harmful contaminants and kill bacteria.

nano shopping

you want to shop nano materials,tubes,wires etc...
contact with the company --
NANOSTRUCTURED AND AMORPHOUS MATERIALS,lnc.

MIT Researchers Discover New Energy Source Called Themopower

A carbon nanotube can produce a very rapid wave of power when it is coated by a layer of fuel and ignited, so that heat travels along the tube.




MIT scientists at MIT have discovered a previously unknown phenomenon that can cause powerful waves of energy to shoot through minuscule wires known as carbon nanotubes. The discovery could lead to a new way of producing electricity.

The phenomenon, described as thermopower waves, “opens up a new area of energy research, which is rare,” says Michael Strano, MIT’s Charles and Hilda Roddey Associate Professor of Chemical Engineering, who was the senior author of a paper describing the new findings that appeared in Nature Materials on March 7, 2011. The lead author was Wonjoon Choi, a doctoral student in mechanical engineering.

Carbon nanotubes (as illustrated) are submicroscopic hollow tubes made of a lattice of carbon atoms. These tubes, just a few billionths of a meter (nanometers) in diameter, are part of a family of novel carbon molecules, including buckyballs and graphene sheets.

In the new experiments conducted by Michael Strano and his team, nanotubes were coated with a layer of a reactive fuel that can produce heat by decomposing. This fuel was then ignited at one end of the nanotube using either a laser beam or a high-voltage spark, and the result was a fast-moving thermal wave traveling along the length of the carbon nanotube like a flame speeding along the length of a lit fuse. Heat from the fuel goes into the nanotube, where it travels thousands of times faster than in the fuel itself. As the heat feeds back to the fuel coating, a thermal wave is created that is guided along the nanotube. With a temperature of 3,000 kelvins, this ring of heat speeds along the tube 10,000 times faster than the normal spread of this chemical reaction. The heating produced by that combustion, it turns out, also pushes electrons along the tube, creating a substantial electrical current.

Nanoengineers Invent New Biomaterial

Optical images of polyethylene glycol scaffolds expanding in response to stretching.

Image credit: UC San Diego / Shaochen Chen

Catherine Hockmuth of UC San Diego reports that, a new biomaterial designed for repairing damaged human tissue doesn't wrinkle up when it is stretched. The invention from nanoengineers at the University of California, San Diego marks a significant breakthrough in tissue engineering because it more closely mimics the properties of native human tissue.

Shaochen Chen, professor in the Department of NanoEngineering at the UC San Diego Jacobs School of Engineering, hopes future tissue patches, which are used to repair damaged heart walls, blood vessels and skin, for example, will be more compatible with native human tissue than the patches available today.

This biofabrication technique uses light, precisely controlled mirrors and a computer projection system -- shined on a solution of new cells and polymers -- to build three-dimensional scaffolds with well-defined patterns of any shape for tissue engineering.

Shape turned out to be essential to the new material's mechanical property. While most engineered tissue is layered in scaffolds that take the shape of circular or square holes, Chen's team created two new shapes called "reentrant honeycomb" and "cut missing rib." Both shapes exhibit the property of negative Poisson's ratio (i.e. not wrinkling when stretched) and maintain this property whether the tissue patch has one or multiple layers. 

Nanosensor Probe

A nanosensor probe carrying a laser beam (blue) penetrates a living cell to detect the presence of a product indicating that the cell has been exposed to a cancer-causing substance.






A "nano-needle" with a tip about one-thousandth the size of a human hair pokes a living cell, causing it to quiver briefly. Once it is withdrawn from the cell, this ORNL nanosensor detects signs of early DNA damage that can lead to cancer.

This nanosensor of high selectivity and sensitivity was developed by a research group led byTuan Vo-Dinh and his coworkers Guy Griffin and Brian Cullum. The group believes that, by using antibodies targeted to a wide variety of cell chemicals, the nanosensor can monitor in a living cell the presence of proteins and other species of biomedical interest.

Scientists Develop "Nano Bubble Water

A man holds a bottle containing 'nano bubble water' in front sea bream and carp which are kept together in the same aquarium during the Nano Tech exhibition in Tokyo, Japan. The National Institute of Advanced Industrial Science and Technology (AIST) and REO developed the world's first 'nano bubble water' technology that allows both fresh-water fish and saltwater fish to live in the same water.

Glass Nanobots Absorb Toxins

A nanobot particle made from glass is being developed that can absorb pollutants from contaminated water.

The glass particles act like sponges by attracting and binding contaminants to themselves and expanding eight times in size during the process.

But unlike a sponge, these nanobots are hydrophobic, meaning they don't absorb water.

Scientists claim this new technology could be used to clean petroleum spills or other hazardous chemicals from our waterways. After the particles are dropped into the water, they collect pollutants and then rise to the surface when fully expanded. The particles are then skimmed from the surface, cleaned and placed back into the water to repeat the process.

1st time

hi everyone.
1st time experience as a blogger.
one thing,i am a student of physics.i will share my experience,doubt,news related to physics..

1st time

hi everyone..
1st time experience as a blogger.