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Better sensors for medical imaging, contraband detection: Magnetic-field detector is 1,000 times more efficient than its predecessors

Nanotech-Now - April 8, 2015 - 7:45am
MIT researchers have developed a new, ultrasensitive magnetic-field detector that is 1,000 times more energy-efficient than its predecessors. It could lead to miniaturized, battery-powered devices for...
Categories: Nanotechnology News

Application of Egg White in Production of Nanoparticles

Nanotech-Now - April 8, 2015 - 7:45am
Iranian researchers from Mashhad University of Medical Sciences proposed the application of egg white as the size-controlling agent in the production of oxide nanoparticles.
Categories: Nanotechnology News

Scientists Find New Method to Determine Anti-Depression Drug in Biological Samples

Nanotech-Now - April 8, 2015 - 7:45am
Iranian researchers from Bu-Ali Sina University of Hamedan succeeded in the production of a sensor which can be used in a sensitive tool to measure an anti-depression drug.
Categories: Nanotechnology News

Atoms interfere in new Hong-Ou-Mandel experiment

Nanotechweb - April 8, 2015 - 5:51am
(with audio) Observations could be important for testing fundamental concepts in physics such as Bell’s inequalities and the quantum-to-classical transition.
Categories: Nanotechnology News

UCLA scientists create quick-charging hybrid supercapacitors

National Nanomanufacturing Network - April 8, 2015 - 5:44am
Charge storage device created at California NanoSystems Institute is vast improvement over existing modelsThe dramatic rise of smartphones, tablets, laptops and other personal and portable electronics has brought battery technology to the forefront of electronics research. Even as devices have improved by leaps and bounds, the slow pace of battery development has held back technological progress. Now, researchers at UCLA’s California NanoSystems Institute have successfully combined two nanomaterials to create a new energy storage medium that combines the best qualities of batteries and supercapacitors. Supercapacitors are electrochemical components that can charge in seconds rather than hours and can be used for 1 million recharge cycles. Unlike batteries, however, they do not store enough power to run our computers and smartphones. The new hybrid supercapacitor stores large amounts of energy, recharges quickly and can last for more than 10,000 recharge cycles. The CNSI scientists also created a microsupercapacitor that is small enough to fit in wearable or implantable devices. Just one-fifth the thickness of a sheet of paper, it is capable of holding more than twice as much charge as a typical thin-film lithium battery. The study (http://www.pnas.org/content/early/2015/03/20/1420398112.full.pdf), led by Richard Kaner, distinguished professor of chemistry and biochemistry and materials science and engineering, and Maher El-Kady, a postdoctoral scholar, was published in the Proceedings of the National Academy of Sciences. “The microsupercapacitor is a new evolving configuration, a very small rechargeable power source with a much higher capacity than previous lithium thin-film microbatteries,” El-Kady said. The new components combine laser-scribed graphene, or LSG — a material that can hold an electrical charge, is very conductive, and charges and recharges very quickly — with manganese dioxide, which is currently used in alkaline batteries because it holds a lot of charge and is cheap and plentiful. They can be fabricated without the need for extreme temperatures or the expensive “dry rooms” required to produce today’s supercapacitors. “Let’s say you wanted to put a small amount of electrical current into an adhesive bandage for drug release or healing assistance technology,” Kaner said. “The microsupercapacitor is so thin you could put it inside the bandage to supply the current. You could also recharge it quickly and use it for a very long time.” The researchers found that the supercapacitor could quickly store electrical charge generated by a solar cell during the day, hold the charge until evening and then power an LED overnight, showing promise for off-grid street lighting. “The LSG–manganese-dioxide capacitors can store as much electrical charge as a lead acid battery, yet can be recharged in seconds, and they store about six times the capacity of state-of-the-art commercially available supercapacitors,” Kaner said. “This scalable approach for fabricating compact, reliable, energy-dense supercapacitors shows a great deal of promise in real-world applications, and we’re very excited about the possibilities for greatly improving personal electronics technology in the near future.”Source: UCL (http://newsroom.ucla.edu/releases/ucla-scientists-create-quick-charging-hybrid-supercapacitors)

Crystal-handedness revealed by twisted electron beams

Nanotechweb - April 7, 2015 - 9:50am
A modified electron-microscopy technique could measure chirality of single molecules
Categories: Nanotechnology News

Studies find $1 test using gold nanoparticles outperforms PSA screen for prostate cancer: Cancer biomarkers cling to gold nanoparticles, providing more accurate early-stage detection

Nanotech-Now - April 6, 2015 - 7:45am
A test that costs less than a $1 and yields results in minutes has been shown in newly published studies to be more sensitive and more exact than the current standard test for early-stage prostate can...
Categories: Nanotechnology News

OU physicists first to create new molecule with record-setting dipole moment

Nanotech-Now - April 6, 2015 - 7:45am
A proposed pathway to construct quantum computers may be the outcome of research by a University of Oklahoma physics team that has created a new molecule based on the interaction between a highly-exci...
Categories: Nanotechnology News

Camera chip provides superfine 3-D resolution: New imaging technology fits on a tiny chip and, from a distance, can form a high-resolution 3-dimensional image of an object on the scale of micrometers

Nanotech-Now - April 6, 2015 - 7:45am
Imagine you need to have an almost exact copy of an object. Now imagine that you can just pull your smartphone out of your pocket, take a snapshot with its integrated 3-D imager, send it to your 3-D p...
Categories: Nanotechnology News

Frustrated magnets -- new experiment reveals clues to their discontent

Nanotech-Now - April 6, 2015 - 7:45am
An experiment conducted by Princeton researchers has revealed an unlikely behavior in a class of materials called frustrated magnets, addressing a long-debated question about the nature of these disco...
Categories: Nanotechnology News

Targeting dangerous inflammation inside artery plaque: Study shows nanomedicine therapy reduces heart attack risk by halting artery plaque growth and suppressing inflammation

Nanotech-Now - April 6, 2015 - 7:45am
A research team showed that a nanotherapeutic medicine can halt the growth of artery plaque cells resulting in the fast reduction of the inflammation that may cause a heart attack, according to a stud...
Categories: Nanotechnology News

Oxford Instruments Asylum Research Presents “Piezoresponse Force Microscopy: From Theory to Advanced Applications” Two-part Webinar Series May 4 and May 6, 2015

Nanotech-Now - April 6, 2015 - 7:45am
Oxford Instruments Asylum Research will host a two-part webinar series on Piezoresponse Force Microscopy (PFM), May 4 and May 6, 2015. Presenters include Dr. Sergei V. Kalinin, Director at the Institu...
Categories: Nanotechnology News

Optics, nanotechnology combined to create low-cost sensor for gases

Nanotech-Now - April 6, 2015 - 7:45am
Engineers have combined innovative optical technology with nanocomposite thin-films to create a new type of sensor that is inexpensive, fast, highly sensitive and able to detect and analyze a wide ran...
Categories: Nanotechnology News

A new breakthrough in thermoelectric materials

Nanotech-Now - April 6, 2015 - 7:45am
French physicist Jean Charles Athanase Peltier discovered a key concept necessary for thermoelectric (TE) temperature control in 1834. His findings were so significant, TE devices are now commonly ref...
Categories: Nanotechnology News

Nanoparticles may exploit tumor weaknesses to selectively attack cancers: CHOP collaborators explore ultrasmall drug delivery vehicles to target neuroblastoma, a pediatric cancer

Nanotech-Now - April 6, 2015 - 7:45am
Delving into the world of the extremely small, researchers are exploring how biodegradable nanoparticles can precisely deliver anticancer drugs to attack neuroblastoma, an often-deadly children's canc...
Categories: Nanotechnology News

Demonstration of 50GHz Ge Waveguide Electro-Absorption Modulator

Nanotech-Now - April 6, 2015 - 7:45am
At OFC 2015, the largest global conference and exposition for optical communications, nanoelectronics research center imec, its associated lab at Ghent University (Intec), and Stanford University have...
Categories: Nanotechnology News

Combining magnetism and light to fight cancer

Nanotech-Now - April 4, 2015 - 7:45am
By combining, in a liposome[1], magnetic nanoparticles and photosensitizers that are simultaneously and remotely activated by external physical stimuli (a magnetic field and light), scientists at the...
Categories: Nanotechnology News

Perpetuus Advanced Materials secures landmark commercial agreement with global technology group Heraeus: Perpetuus will supply innovative alternatives to existing silver and copper-based inks and pastes

Nanotech-Now - April 4, 2015 - 7:45am
Perpetuus Advanced Materials ("Perpetuus"), a UK-based company at the forefront of advanced materials development, has entered into an exclusive commercial agreement with Heraeus, a leading internatio...
Categories: Nanotechnology News

Mind the gap: Nanoscale speed bump could regulate plasmons for high-speed data flow

Nanotech-Now - April 4, 2015 - 7:45am
The name sounds like something Marvin the Martian might have built, but the "nanomechanical plasmonic phase modulator" is not a doomsday device. Developed by a team of government and university resear...
Categories: Nanotechnology News

Cooling massive objects to the quantum ground state

Nanotech-Now - April 4, 2015 - 7:45am
Cooling of macroscopic and mesoscopic objects to the quantum ground states are of great interests not only for fundamental study of quantum theory but also for the broad applications in quantum inform...
Categories: Nanotechnology News