Maths and Mysicism
New electronic nose can smell pesticides[needed in India where all food are sprayed with pesticides]
New electronic nose can smell pesticides, nerve gas in miniscule concentrations
(KU Leuven)
The technology can also be farly easily integrated into smartphones, to turn them into gas detectors as well.
Researchers have built a sensitive electronic nose that can
detect pesticides and nerve gas in very low concentrations, an advance
which may help screen someone's breath for lung cancer and multiple
sclerosis (MS).
The best-known electronic nose is the breathalyser. As drivers breathe into the device, a chemical sensor measures the amount of alcohol in their breath, researchers said. This chemical reaction is then converted into an electronic signal, allowing the police officer to read off the result.
Alcohol is easy to detect, because the chemical reaction is specific and the concentration of the measured gas is fairly high. But many other gases are complex mixtures of molecules in very low concentrations. Building electronic noses to detect them is thus quite a challenge. Now, researchers from KU Leuven in Belgium have built a very sensitive electronic nose with metal-organic frameworks (MOFs).
"MOFs are like microscopic sponges. They can absorb quite a lot of gas into their minuscule pores," said Ivo Stassen from KU Leuven. Researchers created a MOF that absorbs the phosphonates found in pesticides and nerve gases. "This means you can use it to find traces of chemical weapons such as sarin or to identify the residue of pesticides on food. This MOF is the most sensitive gas sensor to date for these dangerous substances," said Stassen. "The concentrations we are dealing with are extremely low: parts per billion - a drop of water in an Olympic swimming pool - and parts per trillion," he added.
"The chemical sensor can easily be integrated into existing electronic devices", said Rob Ameloot from KU Leuven. "You can apply the MOF as a thin film over the surface of, for instance, an electric circuit. Therefore, it is fairly easy to equip a smartphone with a gas sensor for pesticides and nerve gas," said Ameloot. "MOFs can measure very low concentrations, so we could use them to screen someone's breath for diseases such as lung cancer and MS in an early stage. Or we could use the signature scent of a product to find out whether food has gone bad or to distinguish imitation wine from the original," he said.
The findings were published in the journal Chemical Science.
The best-known electronic nose is the breathalyser. As drivers breathe into the device, a chemical sensor measures the amount of alcohol in their breath, researchers said. This chemical reaction is then converted into an electronic signal, allowing the police officer to read off the result.
Alcohol is easy to detect, because the chemical reaction is specific and the concentration of the measured gas is fairly high. But many other gases are complex mixtures of molecules in very low concentrations. Building electronic noses to detect them is thus quite a challenge. Now, researchers from KU Leuven in Belgium have built a very sensitive electronic nose with metal-organic frameworks (MOFs).
"MOFs are like microscopic sponges. They can absorb quite a lot of gas into their minuscule pores," said Ivo Stassen from KU Leuven. Researchers created a MOF that absorbs the phosphonates found in pesticides and nerve gases. "This means you can use it to find traces of chemical weapons such as sarin or to identify the residue of pesticides on food. This MOF is the most sensitive gas sensor to date for these dangerous substances," said Stassen. "The concentrations we are dealing with are extremely low: parts per billion - a drop of water in an Olympic swimming pool - and parts per trillion," he added.
"The chemical sensor can easily be integrated into existing electronic devices", said Rob Ameloot from KU Leuven. "You can apply the MOF as a thin film over the surface of, for instance, an electric circuit. Therefore, it is fairly easy to equip a smartphone with a gas sensor for pesticides and nerve gas," said Ameloot. "MOFs can measure very low concentrations, so we could use them to screen someone's breath for diseases such as lung cancer and MS in an early stage. Or we could use the signature scent of a product to find out whether food has gone bad or to distinguish imitation wine from the original," he said.
The findings were published in the journal Chemical Science.
the VR experience
Le Max2: The Superphone that makes the VR experience ultimate
However, to experience any cutting-edge technology you need to have the right hardware to be able to experience the VR experience to its fullest. This is where LeEco with its future-ready Le Max2 is a perfect choice.
The Le Max2 comes with a gorgeous 5.7-inch display running at a resolution of 2560×1440 pixels. This enables the pictures and videos to come to life over a VR headset. It is very difficult to see a difference between a Full HD display and a 2K with the naked eye but it makes a world of difference when you have a VR headset on! Le Max2 boasts of a high pixel density, which is 515ppi and is as close as it gets to human eyes offering you clearer and sharper images than what you would get on any other phone screen.
In addition to this, LeEco’s Le Max2 is also the first smartphone to come with CDLA Technology, that enables end-to-end lossless digital music transmission further making the VR experience more exciting. This technology is patented by LeEco, making it the only player globally to have replaced the 3.5mm headphone port with CDLA Type-C interface. The result of this unique technology is a significantly improved audio output. Le Max2 is all set to redefine the way we watch movies or play games with its stunning QHD display along with the enhanced audio experience.
The great experience for users just does not end here. The new Superphone – Le Max2 also offers users access to more than 1.9 million songs with lossless audio, 50+ Big Ticket International Live Concerts, exclusive Live Streaming of Major Entertainment Events & Music Concerts Worldwide along with 7500+ hours of world class entertainment. There is content worth Rs 4,990 that comes bundled in free with this phone.
Apart from this, the Superphone also comes with a Qualcomm® Snapdragon™ 820 (MSM8996) processor that is paired with 4/6 GB RAM and 32/64 GB of internal storage. To ensure that you never run out of battery Max2 comes equipped with a 3100mAh battery with the world’s leading quick charging technology.
For the shutterbugs, there is a powerful 21-megapixel rear camera and an 8-megapixel front camera. The rear camera supports PDAF, optical image stabilization (OIS) and 4K video recording capabilities.
LeEco has managed to get a stupendous response for its first sale of LeMax2 that was conducted on June 28th.
For people who missed out on the same can now register for the next sale that will be held on July 5 on LeMall, LeEco’s own e-commerce portal, and Flipkart.
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