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Synthetic nano-bio architecture for nanocatalytic photon-to-hydrogen conversion

NanoWerk.com - Sat, 06/17/2017 - 13:25
Researchers demonstrate that a minimalistic cell-free strategy for production of artificial transmembrane protein complexes can be employed as a chassis for the construction of functional bionanoarchitectures capable of catalyzing photon-energy-to-hydrogen transformation.

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New prospects for universal memory - high speed of RAM and the capacity of flash

NanoWerk.com - Sat, 06/17/2017 - 13:08
Researchers have found a way to control oxygen concentration in tantalum oxide films produced by atomic layer deposition. These thin films could be the basis for creating new forms of nonvolatile memory.

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Bacteria free themselves with molecular 'speargun'

ScienceDaily.com: Nanotechnology News - Fri, 06/16/2017 - 16:37
Many bacteria are armed with nano-spearguns, which they use to combat unwelcome competitors or knockout host cells. The pathogen responsible for tularemia, a highly virulent infectious disease, uses this weapon to escape from its prison in cells defending the host, report researchers.
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How close are we to a real Star Trek-style medical tricorder? (w/video)

NanoWerk.com - Fri, 06/16/2017 - 14:54
Two teams were recently awarded the Qualcomm Tricorder X Prize for developing handheld devices that can diagnose a range of diseases and check a patient's vital signs without invasive tests - inspired by Star Trek's medical 'tricorder' device.

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Bacteria free themselves with nano-spearguns

NanoWerk.com - Fri, 06/16/2017 - 14:40
Many bacteria are armed with nano-spearguns, which they use to combat unwelcome competitors or knockout host cells.

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Researchers send DNA on sequential, and consequential, building mission

NanoWerk.com - Fri, 06/16/2017 - 14:40
A team of scientists has developed a method to create structures whose building blocks are a millionth of a meter in size by encoding DNA with assembly instructions.

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Piezoelectric nanogenerators for self-powered flexible sensors

NanoWerk.com - Fri, 06/16/2017 - 12:02
Researchers have demonstrated a high performance flexible piezoelectric nanogenerator based on a piezoelectrically enhanced nanocomposite micropillar array of BaTiO3 nanoparticles embedded into a highly crystalline polymer for efficient energy harvesting and highly sensitive self-powered sensing.

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A skyrmion square dance

NanoWerk.com - Fri, 06/16/2017 - 11:01
Applying a magnetic field can switch a grid of magnetic vortices between triangular and square arrangements.

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Nanostructures explain why jewel scarab beetles look like pure gold

NanoWerk.com - Fri, 06/16/2017 - 10:55
The secrets of why central-American jewel scarab beetles look like they are made from pure gold, has been uncovered by physicists.

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Electrolytes made from liquefied gas enable batteries to run at ultra-low temperatures

NanoWerk.com - Thu, 06/15/2017 - 23:30
Engineers have developed a breakthrough in electrolyte chemistry that enables lithium batteries to run at temperatures as low as -60 degrees Celsius with excellent performance - in comparison, today's lithium-ion batteries stop working at -20 degrees Celsius.

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Cryo-EM images reveal how key biological machine unfolds problem proteins

ScienceDaily.com: Nanotechnology News - Thu, 06/15/2017 - 22:27
Hand over hand. That's how new, near-atomic resolution, 3-D snapshots show that a key biological machine unfolds a ribbon of protein through its central channel.
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Interplay of light and matter - A 'perfect' attosecond experiment

NanoWerk.com - Thu, 06/15/2017 - 21:14
Using what is known as an attosecond experiment, physicists have managed to completely measure and describe the quantum-mechanical wave function of an ionized electron.

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Development of low-dimensional nanomaterials could revolutionize future technologies

ScienceDaily.com: Nanotechnology News - Thu, 06/15/2017 - 20:06
Some scientists believe improvements in computer processors, TV displays and solar cells will come from scientific advancements in the synthesis of low-dimensional nanomaterials.
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Grant focuses on 'hydrogen sponge' for use in fuel-cell vehicles

NanoWerk.com - Thu, 06/15/2017 - 19:44
Finding practical hydrogen storage technologies for vehicles powered by fuel cells is the focus of a $682,000 grant from the U.S. Department of Energy.

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Capturing carbon dioxide and storing methane with metal-organic frameworks

NanoWerk.com - Thu, 06/15/2017 - 19:34
Metal-organic frameworks (MOFs) are well-ordered, lattice-like crystals. The nodes of the lattices are metals, which are connected by organic molecules. The most impressive features of MOFs are their extremely high surface area, high porosity, and tunable pore sizes, which are remarkable advantages over other porous materials (e.g., zeolites and carbons). With their special structure and large surface area, MOFs open up new opportunities for alternative systems for gas and energy storage (e.g. carbon dioxide and hydrogen storage), in catalysis, chemical sensing, as nanoreactors, and in drug delivery, making them hugely interesting for both university research and industry.

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Seeking out new functions for superconducting nanoelectronics

NanoWerk.com - Thu, 06/15/2017 - 18:45
Researchers have discovered that a two-dimensional semiconductor with a broken inversion symmetry demonstrates rectification, or the property of a diode, under a magnetic field applied in a certain direction.

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'Magic' alloy could spur next generation of solar cells

NanoWerk.com - Thu, 06/15/2017 - 18:29
In what could be a major step forward for a new generation of solar cells called 'concentrator photovoltaics', researchers have developed a new semiconductor alloy that can capture the near-infrared light located on the leading edge of the visible light spectrum.

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Development of low-dimensional nanomaterials could revolutionize future technologies

NanoWerk.com - Thu, 06/15/2017 - 18:21
Improvements in computer processors, TV displays and solar cells will come from scientific advancements in the synthesis of low-dimensional nanomaterials.

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Smart materials used in ultrasound behave similar to water

NanoWerk.com - Thu, 06/15/2017 - 18:15
Scientists are gaining new insight into the smart materials used in ultrasound technology. While forming the most thorough model to date of how these materials work, they have found striking similarities with the behavior of water.

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Viruses in microfabricated channels produce superior supercapacitors

Nanotechweb.org - Thu, 06/15/2017 - 17:51
Viral nanoscaffolds can be arranged in capillary channels to create porous, nanostructured electrodes offering high capacitance.
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