2022 ANNUAL REPORT

72 The cover page of Applied Physics Letters presenting a picture of structures in the form of N magnetic crossing ellipse that support 22N discrete magnetic states. Publications 2021 and 2022 · Julian Schütt, Rico Illing, Oleksii Volkov, Tobias Kosub, Pablo Nicolás Granell, Hariharan Nhalil, Jürgen Fassbender, Lior Klein, Asaf Grosz, Denys Makarov. “Two Orders of Magnitude Improvement in the Detection Limit of Droplet-Based MicroMagnetofluidics with Planar Hall Effect Sensors”. Engineering Proceedings, 2021. · Proloy T Das, H Nhalil, M Schultz, A Grosz, L Klein. “Measurements of nanomagnetic bead relaxation dynamics using planar Hall effect magnetometer”. Journal of Applied Physics, 2021. Publications 2021 and 2022 · Ang Li, Yaakov Yudkin, Paul S Julienne, Lev Khaykovich. “Efimov resonance position near a narrow Feshbach resonance in a mixture”. Physical Review A, 2022. · Yaakov Yudkin, Lev Khaykovich. “Efimov scenario for overlapping narrow Feshbach resonances”. Physical Review A, 2021. Prof. Klein Lior Department of Physics Member of BINA Electro Magnetism & Spintronics Center Research Areas • Magneto-transport in thin magnetic films (particularly ruthenates and manganites) • Anisotropic magnetoresistance and giant planar Hall effect • Current induced manipulation of domain walls • Macroscopic quantum tunneling • Transport properties of LAO/STO interfaces • Magnetic sensors and memory Abstract Giant enhancement of spin-orbit torques in heavy metal/ferromagnetic bi-layers associated with magnetic reversal Using bi-layer films of b-Ta(5nm)/ Ni0.8Fe0.2(2nm), we fabricate elliptical structures which exhibit uniaxial magnetic anisotropy resulting in single magnetic domain behavior. We study induced spinorbit torques (SOTs) in these devices with first and second order harmonic Hall measurements for current flowing along the long axis of the ellipses and external magnetic field applied in the film plane. We observe a giant enhancement of the SOTs associated with magnetization reversal of the NiFe layer and we correlate it quantitatively with a djm/djH term, where jm and jH are the in-plane angles of the magnetization and the magnetic field, respectively. This exciting observation may pave the way for novel spintronic devices. detection of DNA hybridization and drug release using combinatorial approaches • ECPs-microarrays for diagnostics • ECPs-biosensors/immunosensors • High-throughput screening of polymersupported chiral catalysts • (1,3)-dienyliron-carbonyl complexes in asymmetric synthesis • Selective deprotective chemistries ofOSiR3 ethers mediated by VilsmeierHaack reagents (kinetic resolutions/ deracemizations of meso compounds). • Functionalization of carbon nanotubes et use in self assembling systems/ composites materials • Polymodal silica and silicon carbide nanoparticles for hard surfaces and their mode of functionalization using ECPs Abstract Innovative Surface Engineering of Magnetic/Non-Magnetic Nanomaterials (Functional Inorganic TMDC Nanotubes, Nano-Diamonds (NDs) and Maghemite NPs for Gene Silencing, Photodynamic/ Photothermal Therapies, & Anti-Parasitic Bio-Activity) In our lab, we focused on both synthesis of functionalized magnetic NPs and surface modification/engineering of both tungsten disulfide nanotubes and NanoDiamonds. These set of functional NPs are nontoxic/biocompatible and has a high potential as drug delivery systems, with an important capability of imaging (MRI, X-ray, Fluorescence, … etc.). So far, we focused on the following topics, the use of magnetically responsive NPs in cooperation with Photodynamic Therapy (PDT) drug towards higher drug accumulation by magnetic targeting and therefore, a much more effective PDT output. We also developed an effective innovative nanoscale Delivery System as anti-Leishmania drug, which is based on cerium cation/ complex-doped maghemite nanoparticles (Ce·ɣ-Fe2O3-NPs) that are coordinatively bound by both polyethylenemine (PEI) polymer and FDA-approved antileishmanial drug pentamidine. Novel surface engineering of nanodiamonds has been also innovatively discovered towards a preliminary wide range of biological and cosmetic applications. Moreover, novel functionalization of inorganic WS2 nanotubes with maghemite NPs resulted in an hybrid magnetic nanocomposite to improve anti-cancer treatment using photothermal therapy (PTT), as well as promoting nanomaterial reduced aggregation together with an additional ability for nanotube versatile second-step surface functionality/engineering. Prof. Lellouche Jean-Paul Department of Chemistry Member of BINA Nano & Advanced Materials Center Research Areas • Functional electroconductive polymers (ECPs) and nano/microparticle fabrication - Functionalization/nanostructuration of polymeric films • Magnetically-responsive composite polymer-nanoparticles for ultrasensitive

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