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Stéphanie Lacour

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Related publications (122)

Page 5 of 7

Selective Recruitment of Arm Motoneurons in Nonhuman Primates Using Epidural Electrical Stimulation of the Cervical Spinal Cord

Stéphanie Lacour, Grégoire Courtine, Marco Capogrosso, Jocelyne Bloch, Giuseppe Schiavone

Recovery of reaching and grasping ability is the priority for people with cervical spinal cord injury (SCI). Epidural electrical stimulation (EES) has shown promising results in improving motor control after SCI in various animal models and in humans. Nota ...

2018

MRI-Compatible and Conformal Electrocorticography Grids for Translational Research

Stéphanie Lacour, Grégoire Courtine, Giuseppe Schiavone, Florian Dylan Fallegger, Fabien Bertrand Paul Wagner, Ludovic Serex

Intraoperative electrocorticography (ECoG) captures neural information from the surface of the cerebral cortex during surgeries such as resections for intractable epilepsy and tumors. Current clinical ECoG grids come in evenly spaced, millimeter-sized elec ...

2021

Elastic components for prosthetic skin

Stéphanie Lacour

We have developed two fundamental components to manufacture a prosthetic skin: a stretchable pressure sensor formed of piezoelectric elastomer/ferroelectret multilayer sandwiched between stretchable electrodes and stretchable thin-film transistors. The com ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

Performance of Indium Gallium Zinc Oxide Thin-Film Transistors in Saline Solution

Stéphanie Lacour

Transistors are often envisioned as alternative transducing devices to microelectrodes to communicate with the nervous system. Independently of the selected technology, the transistors should have reliable performance when exposed to physiological conditio ...

Springer Verlag2016

Long-term functionality of a soft electrode array for epidural spinal cord stimulation in a minipig model

Stéphanie Lacour, Grégoire Courtine, Jocelyne Bloch, Marco Capogrosso, Giuseppe Schiavone, Florian Dylan Fallegger, Nicolas Vachicouras, Fabien Bertrand Paul Wagner, Xiaoyang Kang

Long-term biointegration of man-made neural interfaces is influenced by the mechanical properties of the implant materials. Substantial experimental work currently aims at replacing conventional hard implant materials with soft alternatives that can favour ...

IEEE2018

A spinal cord neuroprosthesis for locomotor deficits due to Parkinson's disease

Jean François Pierre Laurens, Auke Ijspeert, Silvestro Micera, Stéphanie Lacour, Grégoire Courtine, Marco Capogrosso, Jocelyne Bloch, Giuseppe Schiavone, Elvira Pirondini, Jordan Squair, Eduardo Martin Moraud, Léonie Asboth, Robin Jonathan Demesmaeker, Tomislav Milekovic, Jimmy James Ravier, Jean-Baptiste Mignardot, Flavio Raschella, Simon Borgognon, Alice Julie Bruel, Carmina Andrea Galvez Solano, Camille Georgette Marie Le Goff-Mignardot, Charlotte Marie Jacques Moerman, David Allenson Borton, Grégory Didier Dumont, Sergio Daniel Hernandez, Nicolò Macellari, Shiqi Sun

People with late-stage Parkinson's disease (PD) often suffer from debilitating locomotor deficits that are resistant to currently available therapies. To alleviate these deficits, we developed a neuroprosthesis operating in closed loop that targets the dor ...

Nature Portfolio2023

Deployment of an electrocorticography system with a soft robotic actuator

Stéphanie Lacour, Florian Dylan Fallegger, Kyungjin Kim, Alix Esther Anne Trouillet, Sukho Song

Electrocorticography (ECoG) is a minimally invasive approach frequently used clinically to map epileptogenic regions of the brain and facilitate lesion resection surgery and increasingly explored in brain-machine interface applications. Current devices dis ...

AMER ASSOC ADVANCEMENT SCIENCE2023

Auditory Brainstem Implants: Recent Progress and Future Perspectives

Stéphanie Lacour, Nicolas Vachicouras

The auditory brainstem implant (ABI) was first developed nearly 40 years ago and provides auditory rehabilitation to patients who are deaf and ineligible for cochlear implant surgery due to abnormalities of the cochlea and cochlear nerve. The aims of the f ...

2019

The e-Flower: A hydrogel-actuated 3D MEA for brain reserved; exclusive licensee American spheroid electrophysiology Association for the Advancement of

Antoine Théo Remy, Nathan Savoia, Luca Robert Liebi, Desirée Maulà, Stéphanie Lacour, Ivan Furfaro, Outman Akouissi, Eleonora Martinelli

Traditional microelectrode arrays (MEAs) are limited to measuring electrophysiological activity in two dimen- Attribution creative commons sions, failing to capture the complexity of three-dimensional (3D) tissues such as neural organoids and spheroids. no ...

2024

Electronic Dura Mater Meddling in the Central Nervous System

Stéphanie Lacour, Grégoire Courtine, Jocelyne Bloch

IMPORTANCE A growing number of neurologic treatments rely on neural implants capable of delivering electrical and chemical stimulation to targeted regions of the central nervous system for extended periods. OBJECTIVE To assess the potential of a novel clas ...

Amer Medical Assoc2017

Bioinspired Liquid Metal Based Sensing System For Compliance Detection

Stéphanie Lacour, Ivan Furfaro, Haotian Chen

In this paper, we report a fully stretchable liquid metal based sensor system for compliance detection. The system is composed of a strain sensor layer, a gap layer with a hole in the center and a pressure sensor layer from top to bottom. Inspired from the ...

IEEE2021

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

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

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

A 16-Channel Neural Recording System-on-Chip With CHT Feature Extraction Processor in 65-nm CMOS

Yusuf Leblebici, Volkan Cevher, Stéphanie Lacour, Catherine Dehollain, Florian Dylan Fallegger, Cosimo Aprile, Kerim Türe, Alix Esther Anne Trouillet, Arda Uran, Emilie Cornelia Maria Revol

Next generation invasive neural interfaces require fully implantable wireless systems that can record from a large number of channels simultaneously. However, transferring the recorded data from the implant to an external receiver emerges as a significant ...

2022

Elastomeric substrates with embedded stiff platforms for stretchable electronics

Stéphanie Lacour, Alessia Romeo

Stretchable electronics typically integrate hard, functional materials on soft substrates. Here we report on engineered elastomeric substrates designed to host stretchable circuitry. Regions of a stiff material, patterned using photolithography, are embedd ...

American Institute of Physics2013

PDMS Microchannel Regenerative Peripheral Nerve Interface

Stéphanie Lacour, Katherine Marie Musick

We have fabricated a soft silicone structure to support the regeneration of a sciatic nerve. The device consists of 70 parallel (120 x 110 mu m(2)) channels through which axons extend and then reconnect to the muscles on the other side of the device. Throu ...

Ieee2013

Biomedical device comprising a mechanically adaptive member

Stéphanie Lacour, Nicolas Vachicouras, Jennifer Mary Adrienne Alice Macron

A biomedical device having improved handling features to be easily inserted into a cavity or recess is disclosed, as well as methods for using thereof, said device comprising a flat and soft substrate, comprising electrically conductive tracks, configured ...

2020

Radiation Performance of Antennas Implanted in Small Animals for Neuroengineering

Anja Skrivervik, Stéphanie Lacour, Mingxiang Gao, Kangling Wu, James Daniel Rosenthal

Wireless data communication could improve the performance and reliability of biomedical implants used in fundamental neuroscience research by removing infection-prone transcutaneous cabling. The small size of common research animals like mice and rodents, ...

IEEE2023

Elastomeric Electronic Skin for Prosthetic Tactile Sensation

Stéphanie Lacour, Hadrien Olivier Michaud, Aaron Powers Gerratt

This report demonstrates a wearable elastomer-based electronic skin including resistive sensors for monitoring fi nger articulation and capacitive tactile pressure sensors that register distributed pressure along the entire length of the fi nger. Pressure ...

Wiley-Blackwell2015

Automatic clustering of spinal reflexes evoked by epidural electrical stimulation of the cervical spinal cord in non-human primates

Katie Zhi Zhuang, Stéphanie Lacour, Grégoire Courtine, Marco Capogrosso, Jocelyne Bloch, Giuseppe Schiavone

Epidural electrical stimulation of the spinal cord elicits motor responses by recruiting large sensory afferents in the posterior roots. Divergence of excitatory inputs provided by these fibers generates a variety of shapes, latencies and amplitudes in the ...

2019

Stretchable Electrodes for Neuroprosthetic Interfaces

Anna Cyganowski, Stéphanie Lacour, Nicolas Vachicouras, Ivan Rusev Minev, Katherine Marie Musick

We have developed a stretchable gold microelectrode array (MEA) that can withstand the torsion requirements needed for implantable neuroprosthetic interface applications. The array is composed of thin gold (sub-100 nm thick) electrodes on a soft, 120 mu m ...

Ieee2012