Damien Thuau

Université de Bordeaux

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Isabelle Dufour

Université de Bordeaux

Cédric Ayela

Centre National de la Recherche Scientifique

Philippe Poulin

Center for Research in Psychopathology and Clinical Psychology

Mamatimin Abbas

Université de Bordeaux

Guillaume Wantz

Laboratoire de l'Intégration du Matériau au Système

Lionel Hirsch

Université de Bordeaux

Georges Hadziioannou

Laboratoire de Chimie des Polymères Organiques

ÉL

Étienne Lemaire

Polytech Lille

Guillaume Wantz

Laboratoire de l'Intégration du Matériau au Système

Olivier J. Dautel

Institut Charles Gerhardt Montpellier

Cooperative Institutions

Centre National de la Recherche Scientifique

109

Université de Bordeaux

Institut Polytechnique de Bordeaux

Laboratoire de l'Intégration du Matériau au Système

Laboratoire de Chimie des Polymères Organiques

École Nationale Supérieure de Chimie, de Biologie et de Physique

École nationale supérieure d'arts et métiers

ParisTech

Laboratoire Procédés et Ingénierie en Mécanique et Matériaux

HESAM Université

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Macroporous Polymer Cantilever Resonators for Chemical Sensing Applications (Adv. Mater. Technol. 22/2023)

Advanced Materials Technologies (2023)

Marcin Dąbrowski Stéphane Reculusa Damien Thuau Cédric Ayela Alexander Kuhn

Mass-Sensitive Biosensors The cover shows a mass-sensitive transducer based on a cantilever resonator (upper part) composed of a freestanding polymer oscillator, modified with a macroporous molecular imprinted polymer, acting as a recognition layer. The latter is generated by electrodeposition using silica beads as templates (underneath). The zoom illustrates the resulting porous layer, measuring human serum albumin with a significantly enhanced performance compared to compact chemosensors. More detail can be found in article 2300771 by Cédric Ayela, Alexander Kuhn, and co-workers.

Template

10.1002/admt.202370122

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Properties of Single-Walled Carbon Nanotubes Integrated into Polyimide (SWNTs-Pi) Nanocomposites

Damien Thuau Vasileios Koutsos Rebecca Cheung

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Transducteur multicouche pour l’amélioration de la génération de signaux détectés dans un liquide par l’interaction Brillouin résolue en temps

HAL (Le Centre pour la Communication Scientifique Directe) (2022)

Francois Bruno Loic Saint-Martin Damien Thuau Bertrand Audoin

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Transistors à effet de champ piézoélectriques comme méthode de transduction dans les MEMS organiques

HAL (Le Centre pour la Communication Scientifique Directe) (2015)

Damien Thuau Mamatimin Abbas Sylvain Chambon Pascal Tardy Guillaume Wantz

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Fine‐Tuning the Optoelectronic and Redox Properties of an Electropolymerized Thiophene Derivative for Highly Selective OECT‐Based Zinc Detection

Advanced Materials Interfaces (2024)

Tommaso Nicolini Shekhar Shinde Reem El‐Attar Gerardo Salinas Damien Thuau

Abstract Organic mixed ionic‐electronic conductors (OMIEC) have emerged as pivotal materials in organic bioelectronics, particularly when integrated into organic electrochemical transistors (OECTs). Conducting polymer‐based devices have indeed demonstrated their capability to transduce biological signals into amplified output signals, harnessing the high transconductance of OECTs. The OECT operating principle and sensing capability strongly depend on ion‐conjugated backbone coupling: the dual nature of OMIECs, i.e. ion‐conductor and electron/hole‐conductor, presents an intrinsic interface in the bulk of the thin film across which transduction of ionic signals into electronic signals and vice versa occurs. Recent works have shown how selective sodium and potassium detection can be achieved by direct chemical modification of the polymer. Such modifications introduce ligands with affinity for the cations of interest as substituents on the polymer chain. The present work explores the integration of specifically modified conducting polymers into OECT channels, offering selectivity for zinc cations. Zinc fluxes are crucial in various biological processes, and their reliable detection, especially at low concentrations, is an important challenge. By electropolymerizing a thiophene‐based trimer, modified with a dipicolylamine (DPA) substituent, a conducting polymer‐based OECT is obtained that can selectively detect Zn 2+ in the 10 −6 to 10 −3 mol L −1 concentration range in physiological buffers.

Bioelectronics

10.1002/admi.202400127

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Solvent‐Driven Biomimetic Soft Sensors and Actuators

Advanced Materials Interfaces (2022)

Quan Sun Cédric Ayela Damien Thuau

Abstract The emergence of soft actuators that exhibit large, complex, programmable, and reversible shape deformation is of fundamental interest having potential applications in optics, medicals, and robotics fields. However, existing soft actuators are generally driven by only few given external stimuli such as temperature, humidity, or light which limit their interactions with their surroundings. Here, biomimetic soft actuators that respond to a variety of solvent vapors via programmable motion studied by Finite Element Modeling (FEM) are presented. A versatile micromachining process is used to fabricate these biomimetic soft actuators able to bend, curve, and twist in different manners according to their designs mimicking stamen, seed pots, and petals of Bauhinia variegate and Dendrobium orchids . The kinetic parameters of the transient response and recovery actuation are taken as the input feature in principal component analysis (PCA) to discriminate analyte molecules. Finally, to broaden the accessible 3D motions and thus functions of these smart actuators, an origami approach is employed to provide further flexibility and novel controlled structural changes in continuum structures such as snake‐like soft actuators, walkers, and grippers.

Soft Robotics

Biomimetics

Soft sensor

Smart material

10.1002/admi.202201349

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Transducteurs piézoélectriques flexibles organiques pour l'évaluation non destructive

HAL (Le Centre pour la Communication Scientifique Directe) (2022)

Ewen Raoul Samuel Rodríguez Damien Thuau Isabelle Dufour Anissa Méziane

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All inkjet-printed piezoelectric electronic devices: energy generators, sensors and actuators

Journal of Materials Chemistry C (2017)

Damien Thuau Konstantinos Kallitsis Fabrice Domingues Dos Santos Georges Hadziioannou

Entirely inkjet-printed flexible P(VDF–TrFE) based piezoelectric sensors and actuators have been fabricated and characterized.

Inkjet Printing

10.1039/c7tc02558k

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Design of a new electroactive polymer based continuum actuator for endoscopic surgical robots

2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (2020)

Quentin Jacquemin Qiao Sun Damien Thuau Éric Monteiro Sylvie Tencé‐Girault

This paper presents a smart continuum actuator based on a promising class of materials: ElectroActive polymer (EAP). Indeed these polymers undergo dimensional change in response to an applied electrical field and could be integrated directly in an endoscopic robot structure. We focuses on one of such materials, an electrostrictive polymer, for its valuable strain performances. An analytical model leading to the development of an experimental analysis of such a material in an attempts to overcome the technical gap of their integration into a multilayer composite sheet to perform robotic actuation is the subject of this article.

Electroactive polymers

Electrostriction

Surgical robot

Smart material

10.1109/iros45743.2020.9341204

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Flexible non-volatile memory cells based on ferroelectric OFETs

HAL (Le Centre pour la Communication Scientifique Directe) (2015)

Damien Thuau Mamatimin Abbas Guillaume Wantz Sylvain Chambon Pascal Tardy

Non-Volatile Memory

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