Publications by Yves Leterrier

Biobased Composites from Eugenol- and Coumarin-Derived Methacrylic Latex and Hemp Nanocellulose: Cross-Linking via [2+2] Photocycloaddition and Barrier Properties

A novel-biobased latex was synthesized by redox-initiated emulsion copolymerization of ethoxy dihydroeugenyl methacrylate with 5 wt % of a photosensitive methacrylate containing a coumarin group. A stable copolymer latex having 16 wt % solids content and a ...

Amer Chemical Soc2024

Fluorine Free Surface Modification of Microfibrillated Cellulose-Clay Composite Films: Effect of Hydrophobicity on Gas Barrier Performance

Yves Leterrier, Mohammed Arif Poothanari

Diffusion barrier composite films based on microfibrillated cellulose (MFC) and clay were developed with attention paid to the influence of thermal annealing and a fluorine-free surface silylation on their microstructure, water contact angle (WCA), mechani ...

MDPI2024

Magnesium Optrodes for Real-Time Optical Monitoring of Water Transport in Ultrathin Encapsulations for Bioelectronics

Yves Leterrier, Stéphanie Lacour, Hatice Altug, Deepthy Kavungal, Massimo Mariello

Recent studies investigated the hydrolysis of Magnesium (Mg) thin films, highlighting their potential use in biodegradable devices. Quantitatively monitoring the degradation rate and morphological changes of Mg through optical methods and light-delivery de ...

2024

Water-permeation sensor and method for making the same

Yves Leterrier, Stéphanie Lacour, Kyungjin Kim, Massimo Mariello

A water permeation sensor suitable for monitoring and quantitatively assessing ultra-low permeability of thin film encapsulations engineered for bioelectronic microdevices, its fabrication as well as device comprising the same are disclosed herein. ...

2024

Optical Monitoring of Water Side Permeation in Thin Film Encapsulation

Yves Leterrier, Stéphanie Lacour, Kangling Wu, Massimo Mariello

The stability of long-term microfabricated implants is hindered by the presence of multiple water diffusion paths within artificially patterned thin-film encapsulations. Side permeation, defined as infiltration of molecules through the lateral surface of t ...

Wiley-V C H Verlag Gmbh2024

Hermetic, Hybrid Multilayer, Sub-5µm-Thick Encapsulations Prepared with Vapor-Phase Infiltration of Metal Oxides in Conformal Polymers for Flexible Bioelectronics

Yves Leterrier, Stéphanie Lacour, Kangling Wu, Massimo Mariello

Reliable long-term function is crucial for flexible and soft bioelectronics. Mechanical defects and permeation of water molecules across the various device layers are the prime drivers of failure, and particularly in applications requiring continuous conta ...

2024

Photocurable Thiol-Ene/Nanocellulose Elastomeric Composites for Bioinspired and Fluorine-Free Superhydrophobic Surfaces

Yves Leterrier, Feyza Karasu Kiliç

Artificially prepared superhydrophobic surfaces toward a self-cleaning "lotus effect" and anticontamination performance have become critically important in the past few years. However, most approaches to create the required topology with a hierarchical rou ...

AMER CHEMICAL SOC2024

Magnesium Test: Universal and Ultra-Sensitive Method for Measuring Reliability of Thin-Film-Encapsulated Bioelectronic Implants in Physiological Environment

Yves Leterrier, Stéphanie Lacour, Grégoire Courtine, Lei Wang, Ivan Furfaro, Claudia Kathe, Kangling Wu, Massimo Mariello

Next-generation bioelectronic implants require miniaturization, durability, and long-term functionality. Thin film encapsulations, prepared with inorganic or hybrid organic/inorganic designs, are essential for ensuring protection, low water permeation, ada ...

Wiley-V C H Verlag Gmbh2024

Wireless, battery-free, and real-time monitoring of water permeation across thinfilm encapsulation

Yves Leterrier, Anja Skrivervik, Stéphanie Lacour, James Daniel Rosenthal, Mingxiang Gao, Massimo Mariello

Long-term bioelectronic implants require stable, hermetic encapsulation. Water and ion ingress are challenging to quantify, especially in miniaturized microsystems and over time. We propose a wireless and battery-free flexible platform leveraging backscatt ...

Springer Science and Business Media LLC2024

Sustainable polyesters via direct functionalization of lignocellulosic sugars

Yves Leterrier, Véronique Michaud, François Maréchal, Jeremy Luterbacher, Harm-Anton Klok, Graham Reid Dick, Adrien Julien Demongeot, Christèle Rayroud, Maxime Alexandre Clément Hedou, Thibault Rambert

The development of sustainable plastics from abundant renewable feedstocks has been limited by the complexity and efficiency of their production, as well as their lack of competitive material properties. Here we demonstrate the direct transformation of the ...

2022

Photocured Nanocellulose Composites: Recent Advances

Yves Leterrier, Aigoul Schreier, Mohammed Arif Poothanari, Julien Bras

This perspective gives an overview of recent progress in thefield of photocured polymer composites based on variousforms of nanocelluloses, with a focus on cellulose nanofibrils. The manufacturing processes and performances of these nanocellulosecomposites ...

AMER CHEMICAL SOC2022

Photoresponsive Movement in 3D Printed Cellulose Nanocomposites

Yves Leterrier, Joanne Hélène Vaucher-Joset, Adrien Julien Demongeot

Photoresponsive soft liquid crystalline elastomers (LCEs) transform light's energy into dynamic shape changes and are considered promising candidates for production of soft robotic or muscle-like devices. 3D printing allows access to elaborated geometries ...

AMER CHEMICAL SOC2022

Recycling of Bottle Grade PET: Influence of HDPE Contamination on the Microstructure and Mechanical Performance of 3D Printed Parts

Yves Leterrier, Véronique Michaud, Joanne Hélène Vaucher-Joset, Adrien Julien Demongeot

As part of a project that aims to provide people with disabilities with simple assistive devices in Colombia, the possibility of creating a PET filament that can be printed by Fused Deposition Modelling (FDM) from beverage bottle waste was investigated, wi ...

MDPI2022

Recent Advances in Encapsulation of Flexible Bioelectronic Implants: Materials, Technologies, and Characterization Methods

Yves Leterrier, Stéphanie Lacour, Kyungjin Kim, Kangling Wu, Massimo Mariello

Bioelectronic implantable systems (BIS) targeting biomedical and clinical research should combine long-term performance and biointegration in vivo. Here, recent advances in novel encapsulations to protect flexible versions of such systems from the surround ...

Wiley-V C H Verlag Gmbh2022

Uniformly Dispersed Poly(lactic acid)-Grafted Lignin Nanoparticles Enhance Antioxidant Activity and UV-Barrier Properties of Poly(lactic acid) Packaging Films

Yves Leterrier, Harm-Anton Klok, Aigoul Schreier, Alice Boarino

Poly(lactic acid) (PLA) represents one of the most widely used biodegradable polymers for food packaging applications. While this material provides many advantages, it is characterized by limited antioxidant and UV-barrier properties. Blending PLA with lig ...

AMER CHEMICAL SOC2022

Valorization of Byproducts of Hemp Multipurpose Crop: Short Non-Aligned Bast Fibers as a Source of Nanocellulose

Yves Leterrier, Aigoul Schreier

Nanocellulose was extracted from short bast fibers, from hemp (Cannabis sativa L.) plants harvested at seed maturity, non-retted, and mechanically decorticated in a defibering apparatus, giving non-aligned fibers. A chemical pretreatment with NaOH and HCl ...

MDPI2021

Extended Barrier Lifetime of Partially Cracked Organic/Inorganic Multilayers for Compliant Implantable Electronics

Yves Leterrier, Giuseppe Schiavone, Stéphanie Lacour, Kyungjin Kim, Kangling Wu

Flexible and soft bioelectronics display conflicting demands on miniaturization, compliance, and reliability. Here, the authors investigate the design and performance of thin encapsulation multilayers against hermeticity and mechanical integrity. Partially ...

WILEY-V C H VERLAG GMBH2021

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

Dragan Damjanovic, Yves Leterrier, Véronique Michaud, Mohammed Arif Poothanari

The effect of silylation of microfibrillated cellulose (MFC) surfaces on β‐phase formation in poly(vinylidene difluoride) (PVDF) and the resulting viscoelastic and dielectric performance of MFC‐PVDF composites is investigated. Two different organosilanes, ...

2021

Viscoelastic behavior of suspensions of reduced graphene oxide nanoparticles in epoxy

László Forró, Yves Leterrier, Arnaud Magrez, Maryam Majidian

The viscoelastic behavior of dilute suspensions of reduced graphene oxide (RGO) nanoparticles in a liquid SU8 epoxy dissolved in gamma butyrolactone was investigated at RGO concentrations in the range from 0.16 to 1.07 vol. %. Our results revealed that the ...

AMER INST PHYSICS2021

Radical photoinduced cationic frontal polymerization in porous media

Yves Leterrier

Two different interpenetrating phase composites were produced using a radical photoinduced cationic frontal polymerization process. The composites were based on polyurethane (PU) and aluminium open-cell foams impregnated with a formulation of a cycloalipha ...

WILEY2021