Publications de Kyungjin Kim | EPFL Graph Search

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

Deployment of an electrocorticography system with a soft robotic actuator

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

Wireless closed-loop optogenetics across the entire dorsoventral spinal cord in mice

Stéphanie Lacour, Grégoire Courtine, Quentin Barraud, Léonie Asboth, Ileana Ozana Jelescu, Ivan Furfaro, Kyungjin Kim, Jérôme Gandar, Frédéric Pierre Gérald Michoud, Claudia Kathe

Optoelectronic systems can exert precise control over targeted neurons and pathways throughout the brain in untethered animals, but similar technologies for the spinal cord are not well established. In the present study, we describe a system for ultrafast, ...

NATURE PORTFOLIO2022

The neurons that restore walking after paralysis

Stéphanie Lacour, Grégoire Courtine, Jocelyne Bloch, Quentin Barraud, Jordan Squair, Léonie Asboth, Katia Galan, Robin Jonathan Demesmaeker, Nicholas David James, Matthieu Pierre Gautier

A spinal cord injury interrupts pathways from the brain and brainstem that project to the lumbar spinal cord, leading to paralysis. Here we show that spatiotemporal epidural electrical stimulation (EES) of the lumbar spinal cord(1-3) applied during neurore ...

NATURE PORTFOLIO2022

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

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

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

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

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

DIII-D research towards establishing the scientific basis for future fusion reactors

Olivier Sauter, Wilfred Anthony Cooper, Lorenzo Anton-Louis Talà, Terunobu Akiyama, Mario Ludovico Podesta, Dongbin Zhao, Zhixian Yan, Jeffrey Huang, Xin Yang, Richard Pitts

DIII-D research is addressing critical challenges in preparation for ITER and the next generation of fusion devices through focusing on plasma physics fundamentals that underpin key fusion goals, understanding the interaction of disparate core and boundary ...

IOP Publishing Ltd2019

Modeling of neoclassical tearing mode stabilization by electron cyclotron heating and current drive in tokamak plasmas

Olivier Sauter, Federico Alberto Alfredo Felici, Kyungjin Kim, Hartmut Zohm, Emanuele Poli

An integrated numerical system is established to model time-dependent behavior of the neoclassical tearing mode (NTM) in a tokamak which solves the modified Rutherford equation (MRE) by coupling with plasma transport, equilibrium, heating and current drive ...

2016

Preliminary Performance Test Results of First CICC From Korea Destined for an ITER TF Magnet

Pierluigi Bruzzone, Boris Stepanov, Kyungjin Kim

The Republic of Korea is participating in the ITER project to construct and operate the ITER tokamak for the purpose of demonstrating the feasibility of fusion power. ITER Korea, the implementing agency for the Republic of Korea that is procuring items for ...

IEEE Institute of Electrical and Electronics Engineers2013

Fast Maximum Likelihood High-Density Low-SNR Super-Resolution Localization Microscopy

Michaël Unser, Kyungjin Kim

Localization microscopy such as STORM/PALM achieves the super-resolution by sparsely activating photo-switchable probes. However, to make the activation sparse enough to obtain reconstruction images using conventional algorithms, only small set of probes n ...

SampTA2013