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Medical nanoparticles: Local treatment of lung cancer

Nanotech-Now - March 7, 2015 - 7:45am
Nanoparticles are extremely small particles that can be modified for a variety of uses in the medical field. For example, nanoparticles can be engineered to be able to transport medicines specifically...
Categories: Nanotechnology News

Get ready for NanoDays!

Nanotech-Now - March 7, 2015 - 7:45am
At the end of this month, hundreds of museums, science centers, and university research centers across the United States will be hosting events to help children and adults explore the tiny world of at...
Categories: Nanotechnology News

Correcting quantum errors in superconducting circuits

Nanotechweb - March 6, 2015 - 5:07am
Repetitive error detection technique could help make robust qubits for future quantum computers.
Categories: Nanotechnology News

Lower Cost, Roll-to-Roll Production of Carbon Nanotube Based Supercapacitors

National Nanomanufacturing Network - March 5, 2015 - 8:03am
Ultra- or supercapacitors are emerging as a key enabling storage technology for use in fuel-efficient transport as well as in renewable energy systems (for instance as power grid buffer). These devices combine the advantages of conventional capacitors – they can rapidly deliver high current densities on demand – and batteries – they can store a large amount of electrical energy. Supercapacitors offer an alternative source of energy to replace rechargeable batteries for various applications, such as power tools, mobile electronics, and electric vehicles. Although the energy density of capacitors is quite low compared to batteries, their power density is much higher, allowing them to provide bursts of electric energy that for instance can help electric cars to accelerate at comparable or better rates than traditional petrol-only engine vehicles, while achieving a significantly reduced fuel consumption (read more about supercapacitors and other nanotechnologies to mitigate global warming (http://www.nanowerk.com/spotlight/spotid=16126.php) ). "Among the various types of supercapacitors, carbon nanotube (CNT) based devices have shown an order of magnitude higher performance in terms of energy and power densities," Ramakrishna Podila (http://people.clemson.edu/~ramakrp/Welcome.html) , an Assistant Professor in the Department of Physics and Astronomy at Clemson University, tells Nanowerk. "The bottleneck for transferring this technology to the marketplace, however, is the lack of efficient and scalable nanomanufacturing methods." Reporting their findings in Applied Physics Letters ("Roll-to-roll production of spray coated N-doped carbon nanotube electrodes for supercapacitors (http://dx.doi.org/doi:10.1063/1.4905153) "), Podila's team at Clemson University, in collaboration with Professor Apparao Rao's lab (http://www.raonanolab.net/) , has now developed a new scalable method to to directly spraycoat CNT-based supercapacitor electrodes. "Much like painting a car or a wall in your home, we can spray CNT solutions on flexible electrodes, porous aluminum foils in our case, to achieve high energy density supercapacitor electrodes without the need of any binder," explains Podila. The resulting supercapacitors have a 10 times higher energy density compared to the state-of-the-art supercapacitors on the market. Theoretically, CNTs offer an ultra-high surface area; in practice, though, the net capacitance of the CNT electrodes is smaller than the predicted values – based on surface area – due to the presence of a so-called small quantum capacitance in series. In this work, the Clemson researchers together with Cornell Dubilier, Inc (a leading capacitor manufacturer in Liberty, SC) and Sai Global Technolgies (a newly founded manufacturer of tailored nanomaterials in San Antonio, TX), have demonstrated that nitrogen doped CNTs electrodes overcome the quantum capacitance limitations and exhibit high power density along with high energy density on par with thin film Li-ion batteries. "The quantum capacitance must be increased, ideally to infinity, for realizing the true potential of nanocarbons in energy storage," remarks Rao, who is director of the Clemson Nanomaterials Center. "Heteroatomic doping, which has been a valuable tool in the semiconductor industry, can provide a solution," adds Podila. "Here we showed that doping provides a handle to control the energy states where electrons could reside in supercapacitor electrode materials and thereby increase the quantum capacitance." The team points out that their supercapacitors show excellent cycle stability with very little degradation over at least 10000 cycles. "At the end point of the electrode lifetime, the CNTs from the used electrode could be recycled to make another new electrode," Rao notes. "The recycled electrode could perform as efficiently as 60% of the original method-a great advantage in terms of sustainability." Another advantage of the roll-to-roll spray-coating process is a significantly lower cost. As the researchers report, the final price of the spray coated CNT electrodes could be reduced by almost 17%, which includes material and production cost. "The industrial collaboration with Cornell Dubilier and Sai Global Technologies is a vital component of this research and is expected to translate the lab-based technology to the market place," note Podila and Rao. "We are thankful to the National Science Foundation for granting an award to undertake such projects which would have lasting impact on the global energy landscape." Source: Nanowerk (http://www.nanowerk.com/spotlight/spotid=39245.php)

Strength in numbers: Researchers develop the first-ever quantum device that detects and corrects its own errors

Nanotech-Now - March 5, 2015 - 7:45am
When scientists develop a full quantum computer, the world of computing will undergo a revolution of sophistication, speed and energy efficiency that will make even our beefiest conventional machines...
Categories: Nanotechnology News

New research could lead to more efficient electrical energy storage

Nanotech-Now - March 5, 2015 - 7:45am
Lawrence Livermore researchers have identified electrical charge-induced changes in the structure and bonding of graphitic carbon electrodes that may one day affect the way energy is stored.
Categories: Nanotechnology News

Energy-generating cloth could replace batteries in wearable devices

Nanotech-Now - March 5, 2015 - 7:45am
From light-up shoes to smart watches, wearable electronics are gaining traction among consumers, but these gadgets' versatility is still held back by the stiff, short-lived batteries that are required...
Categories: Nanotechnology News

Patent for the Novel Cancer Therapies – Ceramide Nanoliposomes

Nanotech-Now - March 5, 2015 - 7:45am
KN is pleased to announce that Penn State has been awarded a US Patent (8,747,891) for a highly unique cancer therapy. KN holds an exclusive license to this technology which builds on the work of Dr....
Categories: Nanotechnology News

Experiment and theory unite at last in debate over microbial nanowires: New model and experiments settle debate over metallic-like conductivity of microbial nanowires in bacterium

Nanotech-Now - March 5, 2015 - 7:45am
Scientific debate has been hot lately about whether microbial nanowires, the specialized electrical pili of the mud-dwelling anaerobic bacterium Geobacter sulfurreducens, truly possess metallic-like c...
Categories: Nanotechnology News

Magnetic vortices in nanodisks reveal information: Researchers from Dresden and Jülich use microwaves to read out information from smallest storage devices

Nanotech-Now - March 5, 2015 - 7:45am
Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and Forschungszentrum Jülich (FZJ) together with a colleague at the French Centre National de la Recherche Scientifique (CNRS) in Strasbo...
Categories: Nanotechnology News

CiQUS researchers obtain high-quality perovskites over large areas by a chemical method

Nanotech-Now - March 5, 2015 - 7:45am
Francisco Rivadulla's Research Group reports the chemical solution (water-based) synthesis of high-quality epitaxial thin films of LaMnO3 (perovkskite) free of defects at square-centimeter scales and...
Categories: Nanotechnology News

Arrowhead to Present at 2015 Barclays Global Healthcare Conference

Nanotech-Now - March 5, 2015 - 7:45am
Arrowhead Research Corporation (NASDAQ:ARWR), a biopharmaceutical company developing targeted RNAi therapeutics, today announced that Arrowhead's president and chief executive officer Christopher Anza...
Categories: Nanotechnology News

Nanosorbents Increase Extraction, Recycling of Silver from Aqueous Solutions

Nanotech-Now - March 5, 2015 - 7:45am
Iranian Researchers from University of Tehran produced a new type of nanosorbent with the capability of increasing the extraction of silver from mines.
Categories: Nanotechnology News

Keysight Technologies Shifts to Direct Sales of High-Performance Products in North America

Nanotech-Now - March 5, 2015 - 7:45am
Keysight Technologies, Inc. (NYSE: KEYS) today announced that effective June 1, it will resume direct sales of high-performance products to all customers in North America. This includes Keysight's bro...
Categories: Nanotechnology News

Metal-free nanocomposite makes cheap and efficient ORR catalyst

Nanotechweb - March 5, 2015 - 3:58am
Carbon nanotubes and graphene could speed up the oxygen reduction reaction in fuel cells.
Categories: Nanotechnology News

Colon + septic tank = unique, at times stinky, study: Researchers use lab-scale human colon and septic tank to study impact of copper nanoparticles on the environment

Nanotech-Now - March 3, 2015 - 7:45am
What do a human colon, septic tank, copper nanoparticles and zebrafish have in common? They were the key components used by researchers at the University of California, Riverside and UCLA to study...
Categories: Nanotechnology News

Glass coating improves battery performance: To improve lithium-sulfur batteries, researchers added glass cage-like coating and graphene oxide

Nanotech-Now - March 3, 2015 - 7:45am
Lithium-sulfur batteries have been a hot topic in battery research because of their ability to produce up to 10 times more energy than conventional batteries, which means they hold great promise for...
Categories: Nanotechnology News

New nanodevice defeats drug resistance: Tiny particles embedded in gel can turn off drug-resistance genes, then release cancer drugs

Nanotech-Now - March 3, 2015 - 7:45am
Chemotherapy often shrinks tumors at first, but as cancer cells become resistant to drug treatment, tumors can grow back. A new nanodevice developed by MIT researchers can help overcome that by first...
Categories: Nanotechnology News

Breakthrough in OLED technology

Nanotech-Now - March 3, 2015 - 7:45am
Organic light emitting diodes (OLEDs), which are made from carbon-containing materials, have the potential to revolutionize future display technologies, making low-power displays so thin they'll wrap...
Categories: Nanotechnology News

Forbidden quantum leaps possible with high-res spectroscopy

Nanotech-Now - March 3, 2015 - 7:45am
A new twist on an old tool lets scientists use light to study and control matter with 1,000 times better resolution and precision than previously possible.
Categories: Nanotechnology News