Nanotechnology Spotlight – Latest Articles

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Showing Spotlights 17 - 24 of 2374 in category All (newest first):

 

4D nanomedicine based on biodegradable and biocompatible nanoalloys: difficult as catching a comet!

cometImagine catching a comet. Now imagine the comet is as small as a few billionths of meters and it is made of elements from the periodic table that do not like each other; whose fate is that of separate in space and dissolve in biological environments or just in air. Before this happens, the elements are trapped in what is called a non-equilibrium alloy nanoparticle. Since this nanoalloy changes over time, it is not enough to provide its composition and size at a given time, but one should know also how it will change in the near future, or how it changed in the near past.

Sep 21st, 2020

Nanostructured surface inactivates SARS-CoV-2 coronavirus within six hours

nanostructured-surfaceResearchers have successfully produced durable antiviral surfaces that inactivate SARS-CoV-2 within 6 hours. In contrast, on various non-nanostructured surfaces or smooth surfaces, the SARS-COV-2 virus remained viable for up to 48 hours. These results provide evidence that surfaces that are structured with specific nanoscale surface features are effective in preventing SARS-CoV-2 and the subsequent environmental spread. Such nanostructured surfaces can be used in hospital environments and can be extended to other industrial sectors and public infrastructure such as transportation, where fomites or contaminated surfaces are carriers for viral infections.

Sep 18th, 2020

Applying machine learning to nanophotonic design efforts

data-modellingA major challenge for nanophotonics engineers is the wide range of optical responses that metamaterials and other nanoplasmonic structures can generate. In the past few years, machine learning has emerged as a powerful tool for sifting through this vast universe of possible design parameters to aid the design of nanophotonic devices tailored for specific applications. A novel approach uses a type of neural network called a mixture density network to solve the non-uniqueness problem of machine learning algorithms, while also improving accuracy.

Sep 17th, 2020

Direct printing of wearable health sensors onto skin

wearable-electronicsSkin-interfaced, wearable electronics have attracted significant attention due to their unique roles in preventative monitoring, diagnostic confirmation, and convenient therapeutic options. The ultimate application of these bio-integrated devices for practical and convenient applications hinges on the seamless integration of on-body sensors with wireless transmission modules. As a promising direction toward this class of integrated systems, soft body area sensor networks include on-body sensors for physiological signal monitoring and flexible printed circuit boards for signal conditioning/readout and wireless transmission.

Sep 15th, 2020

Topological quantum phase in 2D MoTe2 induced by light

energy-surfaceResearchers have provided an example of on-demand control of quantum phenomena to design the quantum materials. By state-of-the-art quantum mechanical simulations, they find that a two-dimensional transition-metal ditelluride, MoTe2, can realize a structural phase transition from the semiconducting phase to the topological phase triggered by photoexcitation of carriers alone. The sub-picosecond phase transition can be controlled by varying the laser wavelength. The research is inspired by the classical phase transition theory proposed by Lev Davidovich Landau and Rudolf Ernst Peierls.

Sep 14th, 2020

Bottom-up fabrication of nanoelectronics with DNA nanotechnology

DNA-templatesDNA is probably the most programmable biomaterial for creating a wide range of rationally designed and functionally enhanced nanostructures. The sophisticated, programmable, and addressable DNA nanostructures are strong candidates for constructing nanoelectronic devices. The size of DNA molecules is also key: DNA double-helix has a neighboring base pair distance of 0.34 nm and a diameter of 2.1 - 2.6 nm a, and thus DNA complex-based nanoelectronics may break the 5-nm processing limit of commercial silicon-based semiconductors.

Sep 10th, 2020

The GoNano project: Governing nanotechnologies through societal engagement

GoNano-logoThe EU-funded GoNano project explored how co-creation can be used to enhance the responsiveness of nanotechnology research and innovation. Responsiveness is understood as the capacity and willingness of researchers and developers to integrate societal considerations in the early stages of technology development. Over the course of three years, GoNano brought together citizens, civil society organizations, industry, researchers, and policymakers across Europe to align future nanotechnologies with societal needs and concerns.

Sep 9th, 2020

Eliminating biofilms with self-propelled photothermal nanoswimmers

nanoswimmerBiofilm formation is an important adaptation and survival strategy commonly employed by bacteria but, unfortunately, a major cause for infections in humans. Researchers have now demonstrated the safe removal of in vivo bacterial biofilms through artificial nanomotors driven by near-infrared laser light. This is the first demonstration of a self-propelled antibiofilm platform capable of conducting photothermal and antibiotic therapy in the deep layers of biofilm, achieving high therapeutic efficiency in vivo without damaging healthy tissues.

Sep 8th, 2020