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2D Materials cut sharper

Precise patterning of 2D materials is a route to computation and storage using 2D materials, which can deliver potentially better performance and much lower power consumption compared to the technology of today. Researchers now demonstrate an etching process that makes it possible to downsize nanostructures to the 10-20 nm range and obtain smooth edges, sharp corners, and feature sizes significantly below the resolution limit...

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Hydrogels

Hydrogels are fascinating natural or synthetic polymer materials that exhibit very versatile chemistries and physical or biological properties. They are 3D networks of either physically or chemically crosslinked polymers that resemble organic tissues and that can hold large amounts of water within their interlocked molecular network. These soft, translucent materials swell or shrink in response to water absorption or desorption...

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Intracellular activation of RNA interference upon DNA-driven organization of quantum dot assemblies

In addition to the plethora of functions such as storage of genetic information and regulation of its expression, DNA and RNA are also highly programmable biomaterials. DNA can be utilized to design short complementary sequences to be used as the linkers which bring together and organize other biological and inorganic materials. Quantum dots are one such inorganic candidate. Researchers now utilized DNA for the precise assembly...

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A ground-breaking modeling toolkit to predict current of new type of memory

Resistive-switching memory (RSM) is an emerging candidate for next-generation memory and computing devices, such as storage-class memory devices, multilevel memories and as a synapse in neuromorphic computing. A significant challenge in the global research efforts towards better energy technologies is efficient and accurate device modeling. Now, researchers have created a new modeling toolkit which can predict the current...

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Modulation of negative differential resistance in black phosphorus transistors

Lilyette by Bali Women's Minimizer UnderwireNegative differential resistance (NDR), which describes a decrease in electrical current as the applied bias increases, has always been one of the hottest topics in solid-state electronic devices since L. Esaki first demonstrated this phenomenon in heavily-doped Ge p-n junctions in 1958. Researchers now report the modulation of a unique room-temperature NDR effect with high peak current in ambipolar black phosphorus transistors....

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Highly efficient separator coating for lithium-sulfur batteries

N\P Women Straight Wide Leg Pants Mid Waist Sashes Pant Female CLithium-sulfur (Li-S) batteries are a promising alternative to lithium-ion batteries because - at least theoretically - they can render 3-6 times higher energy density. In developing Li-S battery technology, researchers have borrowed many components from the mature lithium-ion battery, such as the separator. However, because the working mechanism of Li-S cells is fundamentally different, there is a need for a suitable separator...

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The thinnest CD-RW

The bottleneck in atomic-scale data storage area may be broken by a simple technique, thanks to recent innovative studies. Through a simple, efficient and low-cost technique involving the focused laser beam and ozone treatment, researchers can manipulate the properties of nanomaterials, thereby 'writing' information onto monolayer materials. The result is a demonstration of the thinnest light disk with rewritable data storage...

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Crystalline materials repair themselves, almost like living tissue (w/video)

Scientists have discovered a new class of material which, when fractured, can repair themselves within milliseconds. The highly crystalline materials, when broken into pieces, can self-propel and re-join in the blink of an eye, and repair themselves so precisely that they become indistinguishable from the undisturbed materials. These new materials may find applications in various high-tech applications. During repair, fractured...

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Cooling high power electronics - boron arsenide spreads heat better than diamond

Heat dissipation has increasingly become a bottleneck for modern electronics. In particular, the development of wide bandgap semiconductor devices has led to many advancements of high power and high frequency electronics Scientists now have integrated new super thermal conductors - boron arsenide and boron phosphide that they developed recently - as a thermal substrate for power electronics devices such as gallium nitride...

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Dual-functional epidermal patch with capability of harvesting and storing the energy in sweat

Self-charging biosupercapacitors (BSCs) that can store energy and be self-charged via chemical or solar energy conversion through bioreaction have recently attracted considerable attention. As human sweat also contains a high concentration of lactate biofuel, the harvesting and storage of the bioenergy in sweat holds the potential to provide the power for wearable electronics. A new wearable hybrid device functions as both...

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