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Affichage de 841 à 850 sur 16556

Article dans une revue

FRET-based mesoporous organosilica nanoplatforms for in vitro and in vivo anticancer two-photon photodynamic therapy

Nicolas Bondon, Clément Charlot, Lamiaa Ali, Alexandre Barras, Nicolas Richy, Denis Durand, Yann Molard, Grégory Taupier, Erwan Oliviero, Magali Gary-Bobo, Frédéric Paul, Sabine Szunerits, Nadir Bettache, Jean-Olivier Durand, Christophe Nguyen, Rabah Boukherroub, Olivier Mongin, Clarence Charnay

We report the synthesis of multifunctional periodic mesoporous organosilica nanoparticles (PMO NPs) with substantial two-photon absorption properties and targeting capability for two-photon excitation fluorescence (TPEF) and photodynamic therapy (TPE-PDT). Prepared using an adapted sol-gel...

Journal of materials chemistry‎ B, 2025, 13 (5), pp.1767-1780. ⟨10.1039/D4TB02103G⟩. ⟨hal-04863058⟩

Article dans une revue

Terahertz time-domain ellipsometry with spintronic emitters: Pauli coefficients as a superior alternative to Jones and Mueller matrices

Pierre Koleják, Jiaming Liu, Robin Silber, Martin Mičica, Ondřej Ballada, Čestmír Barta, Romain Lebrun, Nicolas Tiercelin, Mathias Vanwolleghem, Kamil Postava

We introduce terahertz complete time-domain spectroscopic ellipsometry (THz-cTDSE), extending traditional ellipsometry by determining full Jones and Mueller matrices for in-depth material characterization. This marks the first application of spintronic terahertz emitters in ellipsometry, achieving...

IEEE Transactions on Terahertz Science and Technology, 2025, pp.1-17. ⟨10.1109/TTHZ.2025.3559074⟩. ⟨hal-05065593⟩

Article dans une revue

Copper-decorated porous silicon for the bimodal detection of DMMP, a sarin simulant, by FT-IR spectroscopy and matrix-free laser desorption ionization mass spectrometry

Warda Raiah, Mohammed Guendouz, Parastesh Piratesh, Vincent Thomy, Joël Charrier, Yannick Coffinier

The release of organophosphates into the natural environment may directly and indirectly affect human health and cause severe damage to environmental ecosystems, thus raising global concern. In addition, some of these organophosphorus compounds (OPs) have been weaponized. Among them, Sarin, which...

Microchemical Journal, 2025, 217, ⟨10.1016/j.microc.2025.115034⟩. ⟨hal-05241214⟩

Article dans une revue

Enhanced near-infrared organic photodetectors leveraging core–shell nanotripods

Kaiwen Zheng, Baozhong Deng, Nan Chen, Clemence Chinaud-Chaix, Mona Tréguer-Delapierre, B. Grandidier, Renaud Bachelot, Tao Xu, Jianhua Zhang, Furong Zhu

Near-infrared (NIR) photodetectors are essential for diverse applications, including medical diagnostics, optical communication, and bioimaging. Traditional photodetectors, typically made from silicon and III–V semiconductors, struggle with large-area devices on precured or flexible substrates due...

ACS Applied Materials & Interfaces, 2025, 17 (23), pp.34304-34316. ⟨10.1021/acsami.5c02476⟩. ⟨hal-05119320⟩

Communication dans un congrès

The TOTEM project: Recent developments on a device that transforms live music into vibration

Arthur Paté, Annaëlle Bouchut, Lucie Gosset, Killian Houche, Alain Plaisance

The TOTEM (Touch the music) project brings together various actors (research laboratory, live music venue, association and band of Deaf musicians), in order to work on solutions towards the inclusion of the d/Deaf in live music concerts. Among the diversity of solutions implemented in the projet (e...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365106v2⟩

Pré-publication, Document de travail

Strain energy harvesting performances of piezoelectric composite transducers in rolling tires: a numerical study

Arthur Givois, Florian Allein, Hung Le Khanh, Hervé Dietsch, Charles Croënne, Bertrand Dubus

<div><p>Tire-pavement contact is responsible for mechanical strain energy which can be used to power autonomous smart devices in the context of automotive industry. Power harvesting capabilities of piezoelectric composites included in the host structure are numerically evaluated from...

2025. ⟨hal-05361358⟩

Article dans une revue

In situ Investigation of 1T′/1H Phase Transition in Colloidal WS₂ Monolayers

Dario Mastrippolito, Ashkan Shahmanesh, Mariarosa Cavallo, Erwan Bossavit, Iman Laqchaa El Abed, Corentin Dabard, Shalini Singh, Mathieu Silly, Francesco Capitani, Nemanja Peric, Louis Biadala, Andrea Zitolo, José Avila, Francesco Carlà, Cesare Tresca, Emmanuel Lhuillier, Benoit Mahler, Debora Pierucci

Controlling the crystal phase of two-dimensional transition metal dichalcogenides (TMDs) is essential for tailoring their electronic and optical properties. Among the polymorphs of WS₂, the metastable 1T′ phase exhibits semimetallic or narrow-bandgap character and hosts quantum functionalities...

Nanoscale, 2025, ⟨10.1039/D5NR03092G⟩. ⟨hal-05329170⟩

Communication dans un congrès

Pinces acoustiques hautes fréquences pour la manipulation d'objets micrométriques

Jean-Louis Thomas, Michael Baudoin, Roudy Al Sahely

Les pinces acoustiques sont l’équivalent des pinces optiques, elles utilisent un faisceau focalisé pour piéger en trois dimension un objet à l’aide de la pression de radiation. Ces dernières ont permis de faire des manipulation d’objets micro-métrique avec une précision nano-métrique. Néanmoins une...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365443⟩

Communication dans un congrès

Elastic wave propagation in diatom frustules

Chiara Gazzola, Xin Zhou, David Troadec, Marco Miniaci

Diatoms are microscopic algae encapsulated inside a silica inorganic exoskeleton called frustule featuring a complex quasi-regular and hierarchical distribution of micro- and nano-scaled pores. The mechanical and optical behaviors of these biological systems have already been investigated in...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05366196⟩

Article dans une revue

Rethinking Attention Gated with Hybrid Dual Pyramid Transformer-CNN for Generalized Segmentation in Medical Imaging

Fares Bougourzi, Fadi Dornaika, Abdelmalik Taleb-Ahmed, Vinh Truong Hoang

Inspired by the success of Transformers in Computer vision, Transformers have been widely investigated for medical imaging segmentation. However, most of Transformer architecture are using the recent transformer architectures as encoder or as parallel encoder with the CNN encoder. In this paper, we...

Lecture Notes in Computer Science, 2025, Pattern Recognition 27th International Conference, ICPR 2024, Kolkata, India, December 1–5, 2024, Proceedings, Part IV, 15304, pp.243-258. ⟨10.1007/978-3-031-78128-5_16⟩. ⟨hal-04850794⟩