Nanotechnology Spotlight – Latest Articles

RSS Subscribe to our Nanotechnology Spotlight feed

Showing Spotlights 1 - 8 of 2441 in category All (newest first):

 

2D Materials cut sharper

etched-geometric-shapes-in-bluePrecise 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 of electron beam lithography. The nanostructured 2D materials can be used themselves or as etch masks to pattern other nanomaterials.

Sep 4th, 2021

Hydrogels

hydrogelsHydrogels 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 and can hold a large amount of water without losing their structural integrity.

Aug 30th, 2021

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

quantum-dot-assembliesIn 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 of QDs into larger three-dimensional scaffolds.

Aug 18th, 2021

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

computer-memoryResistive-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 of a new type of memory with excellent accuracy.

Aug 11th, 2021

Modulation of negative differential resistance in black phosphorus transistors

wavy-colorsNegative 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. The simplicity of this structure, combined with the recent progress in scalable production of BP films, makes the BP NDR devices promising for practical electronic applications.

Aug 10th, 2021

Highly efficient separator coating for lithium-sulfur batteries

membrane-coatingLithium-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 specifically designed for Li-S. Re-engineering the separator can improve the energy density of Li-S batteries.

Aug 5th, 2021

The thinnest CD-RW

data-encryptionThe 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 and encryption functionalities at the atomic level.

Jul 28th, 2021

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

color-imageScientists 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 pieces travel with a honeybee wing-like motion with acceleration comparable to cars.

Jul 26th, 2021