Category: Nanotech
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Graphene’s thermal properties may not be as revolutionary as previously thought.
Nov 28, 2023 (Nanowerk News) Graphene, a material which consists of a single layer of carbon atoms, has been celebrated by many as the “next big thing” in material science. But according to Purdue University researchers, its thermal properties may not be as revolutionary as previously thought. Key Takeaways Graphene’s thermal conductivity may not be…
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Researchers triple carbon nanotube yield for LEDs, solar cells, flexible and transparent electronics
Schematic representation of hydrogen’s effect in CO-based CVD synthesis of nanotubes. Credit: Ilya Novikov et al./Chemical Engineering Journal Skoltech scientists have found a way to improve the most widely used technology for producing single-walled carbon nanotube films—a promising material for solar cells, LEDs, flexible and transparent electronics, smart textiles, medical imaging, toxic gas detectors, filtration…
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Study shows the ability of some molecules to modify the surface of nanoparticles
AI-generated image of nanoparticles. Credit: Universitat Rovira i Virgili Nanoparticles have unique properties that make them exceptional tools with a variety of applications, from medicine to electronics. One of the lesser-known facts about them is that their surface plays a crucial role in their behavior and functionality. Research led by Vladimir Baulin, distinguished researcher at…
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Nanodiamonds block tumor metastasis in mice
Nov 28, 2023 (Nanowerk News) Finding ways to contain cancer growth and prevent its spread from original sites to other body areas has posed an enduring challenge for medical researchers. Metastasis enables cancers to become more aggressive and is linked to over 90% of cancer deaths. Therapies capable of disrupting this process could thus provide…
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Researchers investigate energy dissipation on magic angle twisted bilayer graphene
Nov 28, 2023 (Nanowerk News) Recent advances in the development of devices made of 2D materials are paving the way for new technological capabilities, especially in the field of quantum technology. So far, however, little research has been carried out into energy losses in strongly interacting systems. With this in mind, the team led by…
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Revolutionizing nanosurface engineering with novel ultrafast laser technique
Nov 28, 2023 (Nanowerk Spotlight) The ability to controllably structure surfaces at the micro- and nanoscale has remained a profoundly impactful yet challenging goal spanning industrial sectors. Precisely controlling surface topographies at these tiny dimensions unlocks transformative functionalities vital for next-generation technologies. Structured surface coatings and metamaterials with tailored nanotextures can exhibit extreme water repellency,…
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Silica films mean better catalysts in confined two-dimensional spaces
Nov 28, 2023 (Nanowerk News) Researchers are making catalysts more efficient by designing materials that contain tiny amounts of catalysts in microscopic cavities. These nanoscale materials have spaces smaller than a single virus. Now, scientists have shown that porous silica films less than one nanometer thick boost the catalytic activity of a metal palladium (Pd)…
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Hard-to-move quasiparticles glide up pyramid edges
Nov 28, 2023 (Nanowerk News) A new kind of “wire” for moving excitons, developed at the University of Michigan, could help enable a new class of devices, perhaps including room temperature quantum computers. What’s more, the team observed a dramatic violation of Einstein’s relation, used to describe how particles spread out in space, and leveraged…
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Fabrication of conductive Ag/AgCl/Ag nanorods ink on Laser-induced graphene electrodes on flexible substrates for non-enzymatic glucose detection
Tafoya, R. R. et al. Morphology and electrical properties of high-speed flexography-printed graphene. Microchim. Acta 189, 123 (2022). Article CAS Google Scholar Xiang, L. et al. Inkjet-printed flexible biosensor based on graphene field effect transistor. IEEE Sens. J. 16, 8359–8364 (2016). CAS Google Scholar Yamada, K., Henares, T. G., Suzuki, K. & Citterio, D. Paper-based…
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Green synthesis of quinazoline derivatives using a novel recyclable nano-catalyst of magnetic modified graphene oxide supported with copper
Graphene is obtained from graphite in the presence of permanganate, sulfuric acid and hydrogen peroxide, which contains different functional groups such as epoxy, acid, hydroxyl and ketone. In the next step, magnetized graphene nanosheets GO@Fe3O4 were created by adding iron to GO, and then functionalized its surface with 3-chloropropyltrimethoxysilane, which reacts more easily with the…