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Engineers Develop New Sensor to Detect Tiny Individual Nanoparticles

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A team of researchers at Washington University in St. Louis has developed a new sensor that can detect and count nanoparticles, at sizes as small as 10 nanometers, one at a time. The researchers say the sensor could potentially detect much smaller particles, viruses and small molecules.

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Simpler Process to Grow Germanium Nanowires Could Improve Lithium-Ion Batteries

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Researchers at Missouri University of Science and Technology have developed what they call “a simple, one-step method” to grow nanowires of germanium from an aqueous solution. Their process could make it more feasible to use germanium in lithium-ion batteries.

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Introducing the Multi-Tasking Nanoparticle

Kit Lam and colleagues from UC Davis and other institutions have created dynamic nanoparticles (NPs) that could provide an arsenal of applications to diagnose and treat cancer. Built on an easy-to-make polymer, these particles can be used as contrast agents to light up tumors for MRI and PET scans or deliver chemo and other therapies to destroy tumors. In addition, the particles are biocompatible and have shown no toxicity. The study was published online today in Nature Communications.

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Promising Ferroelectric Materials Suffer From Unexpected Electric Polarizations

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Brookhaven Lab scientists discover surprising head-to-head charge polarizations that impede performance in next-gen materials that might revolutionize data-driven devices

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Boise State Engineering Professor Works to Help Solve Mystery Surrounding Portrait of a Mummy

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Using a $1.5 million ion beam microscope, a team of Boise State University materials scientists is analyzing a nano-sized fragment from a Roman-Egyptian mummy portrait to help discover its provenance.

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Making Eco-Friendly ‘Pre-Fab Nanoparticles’

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A team of materials chemists, polymer scientists and device physicists this week report a breakthrough technique for controlling assembly of nanoparticles over multiple length scales that may allow cheaper, ecologically friendly manufacture of organic photovoltaics and other electronic devices.

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Could Hemp Nanosheets Topple Graphene for Making the Ideal Supercapacitor?


As hemp makes a comeback in the U.S. after a decades-long ban on its cultivation, scientists are reporting that fibers from the plant can pack as much energy and power as graphene, long-touted as the model material for supercapacitors. They’re presenting their work, which a start-up company is working on scaling up, at the 248th National Meeting & Exposition of the American Chemical Society, the world’s largest scientific society.

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Nanocubes Self-Assemble into Winding, Complex Structures

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Using magnetite nanocubes, Weizmann Institute scientists showed that, under the competing forces of magnetism and van der Waals, such nanomaterials can self-assemble into unexpectedly beautiful and complex structures. The nanocubes also created surprisingly yarn-like strands, demonstrating that, with the right conditions, cube-shaped nanoparticles are able to align into winding, helical structures.

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Like Cling Wrap, New Biomaterial Can Coat Tricky Burn Wounds and Block Out Infection


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Wrapping wound dressings around fingers and toes can be tricky, but for burn victims, guarding them against infection is critical. Today, scientists are reporting the development of novel, ultrathin coatings called nanosheets that can cling to the body’s most difficult-to-protect contours and keep bacteria at bay. They’re speaking about their materials, which they’ve tested on mice, at the 248th National Meeting & Exposition of the American Chemical Society, the world’s largest scientific society.

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Synthesis of Structurally Pure Carbon Nanotubes Using Molecular Seeds

For the first time, researchers at Empa and the Max Planck Institute for Solid State Research have succeeded in "growing" single-wall carbon nanotubes (CNT) with a single predefined structure - and hence with identical electronic properties. And here is how they pulled it off: the CNTs "assembled themselves", as it were, out of tailor-made organic precursor molecules on a platinum surface, as reported by the researchers in the latest issue of the journal "Nature". In future, CNTs of this kind may be used in ultra-sensitive light detectors and ultra-small transistors.

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