Publications de Sébastien Jiguet

Electrowriting of SU-8 Microfibers

Arnaud Bertsch, Sébastien Jiguet, Jürgen Brugger, Christophe Moser, Niyazi Ulas Dinç, Jorge Andres Madrid Wolff, Diego Armando Sandoval Salaiza

As microfiber-based additive manufacturing (AM) technologies, melt electrowriting (MEW) and solution electrowriting (SEW) have demonstrated efficacy with more biomedically relevant materials. By processing SU-8 resin using MEW and SEW techniques, a materia ...

MDPI AG2024

Soft, Implantable Bioelectronic Interfaces for Translational Research

Sébastien Jiguet, Giuseppe Schiavone, Nicolas Vachicouras, Florian Dylan Fallegger, Stéphanie Lacour, Grégoire Courtine, Marco Capogrosso, Evgenia Vladimirova Roussinova, Ivan Furfaro, Andreas Rowald, Beatrice Barra, Simon Borgognon, Jocelyne Bloch, Xiaoyang Kang, Ismael Seanez Gonzalez

The convergence of materials science, electronics, and biology, namely bioelectronic interfaces, leads novel and precise communication with biological tissue, particularly with the nervous system. However, the translation of lab‐based innovation toward cli ...

Wiley2020

SU-8 as a Material for Microfabricated Particle Physics Detectors

Philippe Renaud, Alessandro Mapelli, Sébastien Jiguet, Pietro Maoddi

Several recent detector technologies developed for particle physics applications are based on microfabricated structures. Detectors built with this approach generally exhibit the overall best performance in terms of spatial and time resolution. Many proper ...

MDPI2014

On-chip light sheet illumination enables diagnostic size and concentration measurements of membrane vesicles in biofluids

Philippe Renaud, Sébastien Jiguet, Pietro Maoddi, Hendrik Georges Deschout

Cell-derived membrane vesicles that are released in biofluids, like blood or saliva, are emerging as potential non-invasive biomarkers for diseases, such as cancer. Techniques capable of measuring the size and concentration of membrane vesicles directly in ...

Royal Soc Chemistry2014

Development and Studies of Novel Microfabricated Radiation Hard Scintillation Detectors With High Spatial Resolution

Philippe Renaud, Alessandro Mapelli, Sébastien Jiguet, Noelia Vico Triviño

A new type of scintillation detector is being developed with standard microfabrication techniques. It consists of a dense array of scintillating waveguides obtained by coupling microfluidic channels filled with a liquid scintillator to photodetectors. Easy ...

Institute of Electrical and Electronics Engineers2011

Suspended SU-8 structures for monolithic microfluidic channels

Thomas Lehnert, Martinus Gijs, Sébastien Jiguet, Yves Moser, Riccardo Forti

SU-8 photoresist is commonly used in the field of microfabrication as structural material or for molding of microfluidic devices. One major limitation, however, is the difficulty to process partially freestanding SU-8 structures or monolithic closed caviti ...

Springer-Verlag2011

Carbon nanotubes nanocomposites for microfabrication applications

László Forró, Moshe Judelewicz, Thierry Stora, Sébastien Jiguet, Arnaud Magrez, Marijana Mionic Ebersold

A composite epoxy resin consisting in a SU-8 epoxy resin, a solvent, with or without photoinitiator and carbon nanotubes in powder. When the resin is combined with the carbon nanotubes, the mechanical, thermal and electrical properties of the nanocomposite ...

2011

Polyimide foam-like microstructures: technology and mechanical properties

Philippe Renaud, Martinus Gijs, Sébastien Jiguet, Pierre Joris, Jagoda Anna Dobrzynska

We report a process for the realization of polyimide films with custom-designed microporosity based on the heat-induced depolymerization of polyimide-embedded polypropylene carbonate microstructures. The foam-like microstructures are up to 40 µm thick and ...

Institute of Physics2011

Novel radiation hard microfabricated scintillation detectors with high spatial resolution

Philippe Renaud, Alessandro Mapelli, Sébastien Jiguet, Noelia Vico Triviño

A novel liquid scintillation detector with high spatial resolution is being developed with standard microfabrication techniques. It consists of a dense array of scintillating waveguides obtained by filling microfluidic channels with an organic liquid scint ...

Elsevier2010

Scintillation particle detection based on microfluidics

Philippe Renaud, Alessandro Mapelli, Sébastien Jiguet, Noelia Vico Triviño

A novel type of particle detector based on scintillation, with precise spatial resolution and high radiation hardness, is being studied. It consists of a single microfluidic channel filled with a liquid scintillator and is designed to define an array of sc ...

Elsevier2010

Preparation and characterization of SU8-carbon nanotube composites

László Forró, Moshe Judelewicz, Sébastien Jiguet, Arnaud Magrez, Marijana Mionic Ebersold

SU8-carbon nanotube composites have been produced to enhance the mechanical, electrical, and thermal properties of SU8 photoresists. Homogeneous composites materials have been obtained when multiwalled carbon nanotubes (MWCNTs) functionalized with COOH gro ...

2009

Development and studies of a novel microfabricated radiation hard scintillation particle detector with high spatial resolution

Philippe Renaud, Alessandro Mapelli, Sébastien Jiguet

A novel scintillation detector is being developed with standard microfabrication techniques. It consists of a dense array of scintillating waveguides obtained by filling microfluidic channels with an organic liquid scintillator. Such a microfluidic device ...

2009

Surface Micromachining of Polyureasilazane Based Ceramic-MEMS using SU-8 Micromolds

Vahid Fakhfouri, Sébastien Jiguet, Jürgen Brugger

We describe a novel surface micromachining process for the fabrication of ceramic-type MEMS devices, such as free-standing cantilevers, that is based on the use of high-aspect ratio micromolds of SU8 and aluminum as sacrificial layer. 250μm-high and 100-10 ...

2006

SU-8 nanocomposite photoresist with low stress properties for microfabrication applications

Heinrich Hofmann, Philippe Renaud, Arnaud Bertsch, Sébastien Jiguet

2006

Effect of filler behavior on nanocomposite SU8 photoresist for moving micro- parts

Stefano Mischler, Philippe Renaud, Arnaud Bertsch, Sébastien Jiguet

The use of low-stress SU8 nanocomposites as a functional material for micro- parts and coating applications is described in this paper. It was found that the nanoparticles lower the internal stress and decrease the wear rate and frictional coefficient of t ...

2006

SU-8 nanocomposite coatings with improved tribological performance for MEMS

Heinrich Hofmann, Stefano Mischler, Philippe Renaud, Arnaud Bertsch, Sébastien Jiguet

The increasing interests in micro-electro-mechanical systems (MEMS) has raised the requirement for photoresist materials with improved friction and wear properties for mechanically loaded 3D shaped microstructures. In this work, SU8 photoresist layers rein ...

2006

Conductive SU8 Photoresist for Microfabrication

Heinrich Hofmann, Philippe Renaud, Arnaud Bertsch, Sébastien Jiguet

A conductive composite photoresist has been developed for the direct photopatterning of electrodes. It is based on a dispersion of silver nanoparticles in SU8, a non-conductive, negative-tone photoresist. Manufactured structures have an electrical conducti ...

2005

SU8-silver photosensitive nanocomposite

Heinrich Hofmann, Philippe Renaud, Arnaud Bertsch, Sébastien Jiguet

2004

Polyimide and SU-8 microfluidic devices manufactured by heat- depolymerizable sacrificial material technique

Philippe Renaud, Arnaud Bertsch, Stefan Metz, Sébastien Jiguet

The following paper describes a sacrificial layer method for the manufacturing of microfluidic devices in polyimide and SU-8. The technique uses heat-depolymerizable polycarbonates embedded in polyimide or SU-8 for the generation of microchannels and seale ...

2004

Microfabrication d'objets composites fonctionnels en 3D et à haut facteur de forme, par procédés UV-LIGA et microstéréolithographie

Sébastien Jiguet

The present thesis deals with new composite photoresists for the UV-LIGA and microstereolithography microfabrication processes. The aim is to build functional 3D objects, with high aspect ratio. Two projects have been investigated in parallel for each micr ...

EPFL2004