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Stéphanie Lacour

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Related publications (122)

Page 4 of 7

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

Yves Leterrier, Stéphanie Lacour, Hatice Altug, Mélanie Nelly Rouèche, Deepthy Kavungal, Marion Bianca Cleusix, 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

Epidural electrical stimulation of the cervical dorsal roots restores voluntary upper limb control in paralyzed monkeys

Tomislav Milekovic, Giuseppe Schiavone, Florian Dylan Fallegger, Stéphanie Lacour, Grégoire Courtine, Quentin Barraud, Katia Galan, Jocelyne Bloch, Nicholas David James

Regaining arm control is a top priority for people with paralysis. Unfortunately, the complexity of the neural mechanisms underlying arm control has limited the effectiveness of neurotechnology approaches. Here, we exploited the neural function of survivin ...

NATURE PORTFOLIO2022

Conducting polymer electrodes for auditory brainstem implants

Amélie Anne Guex, Nicolas Vachicouras, Stéphanie Lacour

The auditory brainstem implant (ABI) restores hearing in patients with damaged auditory nerves. One of the main ideas to improve the efficacy of ABIs is to increase spatial specificity of stimulation, in order to minimize extra-auditory side-effects and to ...

Royal Society of Chemistry2015

Stretchable capacitive tactile skin on humanoid robot fingers - first experiments and results

Aude Billard, Nicolas Sommer, Stéphanie Lacour, Aaron Powers Gerratt

A stretchable tactile sensor skin has been demonstrated on the dorsal side of a robotic hand for the first time. The sensors can detect normal pressures on the same scale as human skin but also in excess of 250 kPa and withstand strains in excess of 15%. U ...

2014

Soft Printable Electrode Coating for Neural Interfaces

Florian Dylan Fallegger, Elvira Pirondini, Stéphanie Lacour, Arnaud Bichat, Grégoire Courtine, Quentin Barraud, Michael Shur

The mechanical mismatch between implantable interfaces and neural tissues may be reduced by employing soft polymeric materials. Here, we report on a simple strategy to prepare and pattern a soft electrode coating of neural interfacing devices based on a sc ...

2020

Cardiovascular Response to Intraneural Right Vagus Nerve Stimulation in Adult Minipig

Stéphanie Lacour, Silvestro Micera, Valentina Marie Paggi

Objective: This study explored intraneural stimulation of the right thoracic vagus nerve (VN) in sexually mature male minipigs to modulate safe heart rate and blood pressure response. Material and Methods: We employed an intraneural electrode designed for ...

ELSEVIER2024

Hydrogels and conductive hydrogels for implantable bioelectronics

Stéphanie Lacour, Emilio Fernández Lavado, Outman Akouissi, Massimo Mariello, Kutay Sagdic

Hydrogels are a class of soft materials, which display unique biomimetic properties to biological tissues. Their mechanical properties, high water content, and porosity resemble that of extracellular matrix so that cell growth and proliferation can be reli ...

2023

Microscale Liquid Metal Conductors for Stretchable and Transparent Electronics

Giuseppe Schiavone, Laurent Mirko Dejace, Stéphanie Lacour, Ivan Furfaro, Haotian Chen

Integrated wearable electronics capable of transducing and transmitting biophysical information on complex and dynamic systems are attracting high interest across the consumer electronics, clinical, and research domains. Gallium and gallium-based liquid me ...

Wiley2021

GaitSkin system: Wireless vibrotactile skin patch with gait tracker for sensorimotor conflict creation

Bruno Herbelin, Olaf Blanke, Stéphanie Lacour, Ivan Furfaro, Emilio Fernández Lavado, Haotian Chen, Selim Jean Habiby Alaoui

This paper details the development and preliminary testing of GaitSkin, a wearable haptic interface designed for generating sensorimotor conflicts during locomotion. The system leverages real-time gait tracking and a wireless vibrotactile skin patch to pro ...

IEEE2023

Recruitment of upper-limb motoneurons with epidural electrical stimulation of the cervical spinal cord

Giuseppe Schiavone, Florian Dylan Fallegger, Stéphanie Lacour, Grégoire Courtine, Nathan Antoine Greiner, Simon Borgognon, Nicholas David James, Henri Charles Alexandre Lorach

Epidural electrical stimulation (EES) of lumbosacral sensorimotor circuits improves leg motor control in animals and humans with spinal cord injury (SCI). Upper-limb motor control involves similar circuits, located in the cervical spinal cord, suggesting t ...

Nature Research2021

Biomaterials. Electronic dura mater for long-term multimodal neural interfaces

Tomislav Milekovic, Léonie Asboth, Jérôme Gandar, Nicolas Vachicouras, Stéphanie Lacour, Arthur Edouard Hirsch, Silvestro Micera, Grégoire Courtine, Nikolaus Wenger, Ivan Rusev Minev, Quentin Barraud, Eduardo Martin Moraud, Pavel Musienko, Marco Capogrosso, Natalia Pavlova

The mechanical mismatch between soft neural tissues and stiff neural implants hinders the long-term performance of implantable neuroprostheses. Here, we designed and fabricated soft neural implants with the shape and elasticity of dura mater, the protectiv ...

American Association for the Advancement of Science2015

Engineering reversible elasticity in ductile and brittle thin films supported by a plastic foil

Nicolas Vachicouras, Stéphanie Lacour, Christina Myra Tringides

Reversible deformation is a unique property of elastic materials. Here, we design and fabricate highly stretchable multilayered films by patterning Y-shaped motifs through films of non- elastic materials, e.g. plastics, metals, ceramics. By adjusting the g ...

Elsevier Science Bv2017

Materials and technologies for soft implantable neuroprostheses

Stéphanie Lacour, Grégoire Courtine

Implantable neuroprostheses are engineered systems designed to restore or substitute function for individuals with neurological deficits or disabilities. These systems involve at least one uni-or bidirectional interface between a living neural tissue and a ...

Nature Publishing Group2016

Electronic Skins for Healthcare Monitoring and Smart Prostheses

Laurent Mirko Dejace, Stéphanie Lacour, Haotian Chen

The human skin is a unique organ that embeds multiple functions that no artificial systems can currently replicate. Advances in materials science and engineering are driving the design of electronic skins-large-area sensor arrays that mimic some sensory mo ...

ANNUAL REVIEWS2021

Zinc Oxide Nanowire Rigid Platforms on Elastomeric Substrates

Stéphanie Lacour

Zinc oxide nanostructured thin films are transparent semiconducting ceramics increasingly used in a wide range of integrated devices. This paper outlines a simple strategy to integrate arrays of zinc oxide nanostructured thin films on elastomeric substrate ...

ACS Publications2011

Hybrid soft-rigid electrical interconnection system

Giuseppe Schiavone, Florian Dylan Fallegger, Stéphanie Lacour

It is disclosed an electrical interconnection system comprising: i) an interconnection board comprising an intrinsically non elastic substrate, said substrate having a first face and an opposed second face, and at least one conductive track on and/or withi ...

2021

Tactile Prosthetics in WiseSkin

Christian Enz, Stéphanie Lacour, Vladimir Kopta

IEEE Conference Publications2015

Intrinsically Stretchable Biphasic (Solid–Liquid) Thin Metal Films

Stéphanie Lacour, Hadrien Olivier Michaud, Arthur Edouard Hirsch, Aaron Powers Gerratt

Stretchable biphasic conductors are formed by physical vapor deposition of gallium onto an alloying metal film. The properties of the photolithography-compatible thin metal films are highlighted by low sheet resistance (0.5 Ω sq−1) and large stretchability ...

Wiley-V C H Verlag Gmbh2016

Synthetic skin for recording and modulating physiological activities

Stéphanie Lacour, Arthur Edouard Hirsch, Grégoire Courtine, Ivan Rusev Minev, Pavel Musienko

A method for producing a device adapted to be implanted into the human body for purposes such as neural stimulation, sensing or the like, and device produced according to said method, said method comprising: providing a stretchable layer or membrane (21) o ...

2016

Preclinical upper limb neurorobotic platform to assess, rehabilitate, and develop therapies

Stéphanie Lacour, Florent-Valéry Coen, Silvestro Micera, Grégoire Courtine, Selin Anil, Quentin Barraud, Newton Cho, Nicholas David James, Inssia Dewany

Numerous neurorehabilitative, neuroprosthetic, and repair interventions aim to address the consequences of upper limb impairments after neurological disorders. Although these therapies target widely different mechanisms, they share the common need for a pr ...

AMER ASSOC ADVANCEMENT SCIENCE2022