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Affichage de 2611 à 2620 sur 16100

  • Article dans une revue

Comparison of Brillouin Light Scattering and Density of States in a Supported Layer: Analytical and Experimental Study

Ossama El Abouti, John Cuffe, El Houssaine El Boudouti, Clivia Sotomayor Torres, Emigdio Chavez-Angel, Bahram Djafari-Rouhani, Francesc Alzina

We provide a detailed analytical calculation of the Brillouin light scattering (BLS) intensity of a layer on a substrate, taking into account both photoelastic and moving boundary (ripple effect) mechanisms, and give a comparison between BLS intensity and density of states (DOS) to determine the…

Crystals, 2022, 12 (9), pp.1212. ⟨10.3390/cryst12091212⟩. ⟨hal-03769721⟩

  • Article dans une revue

Redox-labelled electrochemical aptasensors with nanosupported cancer cells

S. Li, Yannick Coffinier, C. Lagadec, Fabrizio Cleri, K. Nishiguchi, A. Fujiwara, T. Fujii, S.-H. Kim, Nicolas Clement

The transfer of redox-labelled bioelectrochemical sensors from proteins to cells is not straightforward because of the cell downward force issue on the surface of the sensors. In this paper, 20-nm-thick nanopillars are introduced to overcome this issue, in a well-controlled manner. We show on both…

Biosensors and Bioelectronics, 2022, 216, 114643, 7 p. ⟨10.1016/j.bios.2022.114643⟩. ⟨hal-03768941⟩

  • Article dans une revue

CNTFET-Based Ternary Multiply-and-Accumulate Unit

Amr Mohammaden, Mohammed Fouda, Ihsen Alouani, Lobna Said, Ahmed Radwan

Multiply-Accumulate (MAC) is one of the most commonly used operations in modern computing systems due to its use in matrix multiplication, signal processing, and in new applications such as machine learning and deep neural networks. Ternary number system offers higher information processing within…

Electronics, 2022, 11 (9), pp.1455. ⟨10.3390/electronics11091455⟩. ⟨hal-03667814⟩

  • Article dans une revue

Electrocatalytic hydrogen generation using tripod containing pyrazolylborate-based copper(II), nickel(II), and iron(III) complexes loaded on a glassy carbon electrode

Mohamed Ibrahim, G. Mersal, Ahmed Fallatah, Khaled Althubeiti, Hamdy El-Sheshtawy, Manal Abou Taleb, Manash Das, Rabah Boukherroub, Mohamed Attia, Mohammed Amin

Three transition metal complexes (MC) namely, [Tp(MeMe)CuCl(H2O)] (CuC), [Tp(MeMe)NiCl] (NiC), and [Tp(MeMe)FeCl(2)(H2O)] (FeC) {Tp(MeMe) = tris(3,5-dimethylpyrazolypborate) were synthesized and structurally characterized. The three complexes CuC, NiC, and FeC-modified glassy carbon (GC) were…

RSC Advances, 2022, 12 (13), pp.8030-8042. ⟨10.1039/d1ra08530a⟩. ⟨hal-03621827⟩

  • Article dans une revue

Stiffening of nanoporous gold: experiment, simulation and theory

Claudio Melis, Giorgio Pia, Elisa Sogne, Andrea Falqui, Stefano Giordano, Francesco Delogu, Luciano Colombo

By combining electron microscopy measurements, atomistic simulations and elastic homogenization theory, we theoretically investigate the Young’s modulus of nanoporous Au structures. Based on atomistic replicas generated starting from experimental tomographic evidence, atomistic simulations reveal…

The European Physical Journal Plus, 2022, 137 (7), pp.858. ⟨10.1140/epjp/s13360-022-03041-7⟩. ⟨hal-03741445⟩

  • Article dans une revue

Plasmonic Approaches for the Detection of SARS-CoV-2 Viral Particles

Sabine Szunerits, Hiba Saada, Quentin Pagneux, Rabah Boukherroub

The ongoing highly contagious Coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), underlines the fundamental position of diagnostic testing in outbreak control by allowing a distinction of the infected from the non-infected people.…

Biosensors, 2022, Special Issue Fundamentals of SARS-CoV-2 Biosensors, 12 (7), pp.548. ⟨10.3390/bios12070548⟩. ⟨hal-03747566⟩

  • Chapitre d'ouvrage

Chapter 3. Optimizing the Current Type 2 Diabetes Antidiabetics with Nanotechnologies: Where Do We Stand?

Amar Abderrahmani, Sabine Szunerits, Stéphane Dalle, Rabah Boukherroub

Type 2 diabetes (T2D) is the most prominent form of diabetes worldwide. In the history of T2D, insulin resistance of liver, muscle and adipose tissue first develops with no apparent clinical signs. Hyperglycemia ensues when β-cells fail to release a sufficient insulin level into the bloodstream to…

Nanotechnology for Diabetes Management, Royal Society of Chemistry, pp.92-112, 2022, Nanoscience & Nanotechnology Series, ⟨10.1039/9781839165498-00092⟩. ⟨hal-03789838⟩

  • Article dans une revue

Early Breast Lump Detection Using the Intelligent Bra "IN-bra

Victory Elias, A Rabih, Georges Nassar

This paper proposes a new smart Bra concept to detect any potential strange lumps in women’s breasts by ultrasounds waves. These suspicious lumps can be a cyst, Abscess, Fibroadenoma, or Tumor. This system consists of 18 transducers positioned in a specific way, distributed on a ring, with a 5 MHz…

Early Breast Lump Detection Using the Intelligent Bra "IN-bra". Acta Scientific Women's Health, 2022, 4 (8), pp.43-49. ⟨10.31080/ASWH.2022.04.0412⟩. ⟨hal-04047721⟩

  • Article dans une revue

Elucidating the oscillation instability of sessile drops triggered by surface acoustic waves

Nicolas Chastrette, Michael Baudoin, Philippe Brunet, Laurent Royon, Régis Wunenburger

The oscillation instability of sessile drops is ubiquitous in surface acoustic wave (SAW) -powered digital microfluidics. Yet the physics underlying these phenomena has not been elucidated owing to the complex interplay between hydrodynamics, acoustics, and capillarity. We decipher the instability…

Physical Review Fluids, 2022, 7 (12), pp.124201. ⟨10.1103/PhysRevFluids.7.124201⟩. ⟨hal-03885908v2⟩

  • Article dans une revue

Synthesis and characterization of palladium nanoparticles immobilized on graphene oxide functionalized with triethylenetetramine or 2,6-diaminopyridine and application for the Suzuki cross-coupling reaction

Maryam Mirza-Aghayan, Marzieh Mohammadi, Rabah Boukherroub

Graphene oxide (GO) was functionalized with two organic ligands, triethylenetetramine (TETA) or 2,6-diaminopyridine (DAP), followed by palladium nanoparticles (Pd NPs) for the synthesis of Pd NPs/GO-TETA and Pd NPs/GO-DAP nanocomposites, respectively. The two heterogeneous nanocomposites were fully…

Journal of Organometallic Chemistry, 2022, 957, pp.122160. ⟨10.1016/j.jorganchem.2021.122160⟩. ⟨hal-03538877⟩