Life Science at RISE’s Post

What are the applications of graphene in life?

Quarter- and half-filled quantum Hall states and their competing interactions in bilayer graphene Congrats, Ravi and Andre! and to our theory collaborators, Misha Yutushui and David Mross. In this study, we discovered a novel half-filled incompressible state and determined the non-abelian topological order for all observed half-integer fillings, revealing a consistent pattern of pairs of the highly sought-after anti-Pfaffian and Pfaffian states. Surprisingly, in regions lacking incompressible half-filled states developed, we observed the emergence of four distinct quarter-filled states, for the first time. The apparent mutual exclusion of half- and quarter-filled states suggests a strong competition between interactions that favor either paired states of two-flux or four-flux composite fermions. Additionally, we identified several fractional quantum Hall (FQH) states that necessitate significant interactions among composite fermions. https://lnkd.in/dYeXUiTA #QMTlab

🔊 New article by our group in collaboration with VTT Finland just published online at Biosensors and Bioelectronics. To view this article, please click on the link below: https://lnkd.in/d8jYeafV Congrats to all the authors,  particularly to Enric and Ruslan for the great contributions.👏 📘 Reduced graphene oxide electrodes meet lateral flow assays: A promising path to advanced point-of-care diagnostics ➡️ Highlights 👉 Reduced graphene oxide electrodes and lateral flow assay strips fully integrated with a novel methodology. 👉 Streamlined dual-purpose laser solution to reduce graphene oxide, ensure connectivity and impede sample leaking. 👉 Pressure exerted uniformly using a wax printer mechanism to transfer rGO onto nitrocellulose without compromising fluidics. 👉 Exploration of several electrochemical strategies to understand the synergy between rGO and nitrocellulose, a porous matrix. 👉 Proof-of-concept application in an electrochemical LFA for cortisol that still allows optical readouts. #Electrochemistry #LateralFlowAssays #LaserReducedGrapheneOxide #ScalableFabrication #Nanoflowers Institut Català de Nanociència i Nanotecnologia (ICN2) Merkoçi Research Group #VTT

Learn about our upcoming multiproject wafer run from our Elías Torres Alonso during this free webinar! Get your #graphene #device designs fabricated as part of the run!

Researchers from France's CEA-Leti and CNRS institutes developed highly efficient red, green and blue InGaN submicron microLED nano-pyramids, using MOCVD and graphene on SiC patterning mask: https://lnkd.in/dwB3pmA2 #microLED Bérangère Hyot Benjamin Damilano David Cooper nevine rochat Colin Paillet Amélie Dussaigne

Regular red-green-blue InGaN quantum wells with In content up to 40% grown on InGaN nanopyramids "Full color #micro_displays with a pixel pitch of below 10 µm are needed for #augmented and #virtual_reality applications. In the native emission approach, high efficiency Red-Green-Blue (RGB) pixels could be achieved using monolithically integrated #InGaN based micro-LEDs. Here, we report the growth of high optical quality RGB InGaN/InGaN #quantum_wells grown on InGaN #nanopyramids of diameter less than 1 µm by metal #organic_vapor_phase_epitaxy. We synthesized the nanopyramids by nanoselective area growth using an in situ patterned epitaxial #graphene on SiC as an embedded mask. The RGB emission properties at different locations on the sample are dependent on the size of the InGaN nanopyramids. Advanced correlative analysis conducted on the same transmission electron microscopy lamella reveal a fully or at least nearly relaxed In0.13Ga0.87N core and very regular quantum wells emitting in the red range (620 nm) along the pyramid sidewalls with an In content up to 40%." Amélie Dussaigne, Colin Paillet, nevine rochat, David Cooper, adeline grenier, Bérangère Hyot, Université Grenoble Alpes, Commissariat a l'Energie Atomique et aux Energies Alternatives, CEA, Leti, Grenoble, France; Vezian Stephane, Benjamin Damilano, Adrien Michon, Université Côte d'Azur, CNRS, CRHEA, Sophia Antipolis, Valbonne, France. https://lnkd.in/eS5swNRf

🚨New On Demand Webinar! For our recent webinar, we were joined by two pioneers in advanced material development, Dr. John Gregoire (Caltech) and Aaike van Vugt (VSPARTICLE), who discussed emerging technologies that enable High Throughput Experimentation (HTE) in materials science. If you missed the webinar or would like to watch it again, it is now available for On Demand viewing on our website: https://ow.ly/1g8150SBBl9 #catalysts #sparkablation #nanoprinting #nanoporous #thinfilms #nanoparticles #platinum #NanoscienceInstruments

Very glad to announce our latest paper on charge transfer in LaNiO3/LaFeO3 superlattices is out now in Science Advances! While it has been suggested that no charge transfer occurs in these heterostructures due to the high stability of the Fe3+ species, our study -combining DFT simulations and detailed spectroscopy characterization -provides clear evidence that charge does transfer from Fe to Ni at the LNO/LFO interfaces. More importantly, we established a direct link between the magnitude of interfacial charge transfer and the measured sheet resistance of the superlattices (achieved through a great collaboration with Bharat Jalan's group). I'm grateful thanks to all my amazing co-authors, including Zhifei Yang, Krishna Prasad Koirala, Mark Bowden, John Freeland, Peter Sushko, Cheng-Tai Kuo, Scott Chambers, Chongmin Wang, Bharat Jalan, and Yingge Du. https://lnkd.in/gYKZ4j5G

Join Yury Gogotsi and eScience Journal tomorrow, May 16, from anywhere! And listen to his talk: “2D Carbides and Nitrides (#MXenes) for Advanced Technology” check flyer for information and scan the code to join. #materialsscience #nanotechnology #technology