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Affichage de 2691 à 2700 sur 16428

  • Article dans une revue

Bio‐Inspired Adaptive Sensing through Electropolymerization of Organic Electrochemical Transistors

Mahdi Ghazal, Michel Daher Mansour, Corentin Scholaert, Thomas Dargent, Yannick Coffinier, Sébastien Pecqueur, F. Alibart

Organic electrochemical transistors are considered today as a key technology to interact with a biological medium through their intrinsic ionic-electronic coupling. In this paper, the authors show how this coupling can be finely tuned (in operando) post-microfabrication via the...

Advanced Electronic Materials, 2022, 8 (3), pp.2100891. ⟨10.1002/aelm.202100891⟩. ⟨hal-03546011⟩

  • Article dans une revue

Sensitivity-Bandwidth Optimization of PMUT with Acoustical Matching Using Finite Element Method

Le-Ming He, Wei-Jiang Xu, Yan Wang, Jia Zhou, Jun-Yan Ren

A new model in finite element method to study round-trip performance of piezoelectric micromachined ultrasonic transducers (pMUTs) is established. Most studies on the performance of pMUT are based only on the transmission sensibility, but the reception capacity is as much important as the...

Sensors, 2022, 22 (6), pp.2307. ⟨10.3390/s22062307⟩. ⟨hal-03626108⟩

  • Article dans une revue

The holy grail of pyrene-based surface ligands on the sensitivity of graphene-based field effect transistors

Vladyslav Mishyn, Adrien Hugo, Teresa Rodrigues, Patrik Aspermair, Henri Happy, Leonel Marques, Charlotte Hurot, Riadh Othmen, Vincent Bouchiat, Rabah Boukherroub, Wolfgang Knoll, Sabine Szunerits

Graphene has received intensive research interest due to its remarkable charge mobility, and the efforts in the use of graphene-based field effect transistors (GFETs) for the sensing of biological biomarkers is on the rise. Because of the high non-specific protein adsorption on graphene, well-...

Sensors & Diagnostics, 2022, 1 (2), pp.235-244. ⟨10.1039/d1sd00036e⟩. ⟨hal-03597068⟩

  • Article dans une revue

Enabling User Relaying In MCM-NOMA Under Doubly Selective Channels Using Iterative Interference Cancellation Schemes For Wireless IoT Networks

Anis Amazigh Hamza, Iyad Dayoub, Ihsen Alouani, Abderrahmane Amrouche

Cell-edge users of future cellular internet of things (IoT) sensor networks can suffer from extremely severe channel conditions, especially under mobility with high speeds, i.e., doubly selective channels. This paper presents a performance improvement method for IoT cell-edge users downlink...

IEEE Sensors Letters, 2022, 6 (3), pp.7500304. ⟨10.1109/LSENS.2022.3148330⟩. ⟨hal-03561509⟩

  • Article dans une revue

Impact of colistin and colistin-loaded on alginate nanoparticles on pigs infected with a colistin-resistant enterotoxigenic Escherichia coli strain

Djamel Drider, Rabah Boukherroub, Laetitia Le Devendec, Yanath Belguesmia, Noura Hazime, Gwenaelle Mourand, Frédéric Paboeuf, Isabelle Kempf

Colistin is frequently used for the control of post-weaning diarrhoea in pigs. Colistin resistance caused by plasmidic genes is a public health issue. We evaluated, in experimental animal facilities, whether free colistin or colistin-loaded on alginate nanoparticles (colistin/Alg NPs) could select...

Veterinary Microbiology, 2022, 266, pp.109359. ⟨10.1016/j.vetmic.2022.109359⟩. ⟨hal-03561670⟩

  • Article dans une revue

Investigation of Lattice Plasmon Modes in 2D Arrays of Au Nanoantennas

Antonio Ferraro, Joseph Marae Djouda, Giuseppe Emanuele Lio, Gaëtan Lévêque, Pierre-Michel Adam, Cesare Paolo Umeton, Thomas Maurer, Roberto Caputo

The coupling of gold nanoantennas (AuNAs) in the arrangement of monomers in bidimensional gratings is investigated both experimentally and numerically. The influence of edge diffraction, corresponding to the grazing propagation of specific diffracted orders, and the dependence of grating parameters...

Crystals, 2022, 12 (3), pp.336. ⟨10.3390/cryst12030336⟩. ⟨hal-03664598⟩

  • Article dans une revue

Short bends using curved mirrors in silicon waveguides for terahertz waves

Mattias Verstuyft, Elias Akiki, Mathias Vanwolleghem, Guillaume Ducournau, Jean-Francois Lampin, Benjamin Walter, Fuanki Bavedila, Édouard Lebouvier, Marc Faucher, Bart Kuyken

Dielectric waveguides are capable of confining and guiding terahertz waves along sub-wavelength sized structures. A small feature size allows for a denser integration of different photonic components such as modulators, beam-splitters, wavelength (de)multiplexers and more. The integration of...

Optics Express, 2022, 30 (5), pp. 6656-6670. ⟨10.1364/OE.447268⟩. ⟨hal-03695019⟩

  • Article dans une revue

Selective Surfaces for Photo-Thermal Conversion for Medium Solar Temperature Applications

Fouzi Haddad, Mustapha Hatti, Khadidja Rahmoun, Katir Ziouche

There are many effective technologies that have been developed in the field of renewable energy. In this context, this study covers a selective coating used in the photo-thermal conversion on macro-scale devices. The objective of this work is to optimize a silicon-based paint layer for solar...

International Journal of Heat and Technology, 2022, 40 (1), pp.219-224. ⟨10.18280/ijht.400126⟩. ⟨hal-03662793⟩

  • Article dans une revue

Unlocking synchrotron sources for THz spectroscopy at sub-MHz resolution

T. Hearne, Marie-Hélène Mammez, Dominique Mammez, M.-A. Martin-Drumel, P. Roy, O. Pirali, Sophie Eliet, S Barbieri, Francis Hindle, Gaël Mouret, Jean-Francois Lampin

Synchrotron radiation (SR) has proven to be an invaluable contributor to the field of molecular spectroscopy, particularly in the terahertz region (1-10 THz) where its bright and broadband properties are currently unmatched by laboratory sources. However, measurements using SR are currently limited...

Optics Express, 2022, 30 (5), pp.7372-7382. ⟨10.1364/OE.448147⟩. ⟨hal-03581582⟩

  • Communication dans un congrès

Noise Figure Modeling Subject to Frequency and Temperature for AlGaN/GaN HEMTs

Mohammad Abdul Alim, Ali A Rezazadeh, Christophe Gaquière

The microwave noise Figure modelling for AlGaN/GaN HEMTs is shown in this study over a large range of temperatures e.g., -40 to 150°C. Standard noise parameters for example minimum noise Figure NFmin), normalized noise equivalent resistance Rs, and association gain Ga were modelled at various...

2022 International Conference on Innovations in Science, Engineering and Technology (ICISET), Feb 2022, Chittagong, Bangladesh. pp.606-609, ⟨10.1109/ICISET54810.2022.9775920⟩. ⟨hal-03703830⟩