Home

Person

Arnaud Bertsch

About
Privacy
Disclaimer

Graph Chatbot

Related publications (94)

Page 4 of 5

Microfluidic synthesis of chitosan-based nanoparticles for fuel cell applications

Philippe Renaud, Arnaud Bertsch, Mohammad Mahdi Hasani-Sadrabadi, Mojtaba Taghipoor

A microfluidic platform is developed for the synthesis of monodisperse, 100 nm, chitosan based nanoparticles using nanogelation with ATP. The resulting nanoparticles tuned and enhanced transport and electrochemical properties of Nafion based nanocomposite ...

Royal Society of Chemistry2012

Flexible polyimide probes with microelectrodes and embedded microfluidic channels for simultaneous drug delivery and multi-channel monitoring of bioelectric activity

Philippe Renaud, Arnaud Bertsch, Stefan Metz

The study of intracellular communication requires devices that can not only monitor the bioelectric activity, but also control and observe the biochemical environment at the cellular level. This paper reports on the development and characterisation of impl ...

Elsevier2004

Devices for the electrical stimulation of the olfactory system: A review

Jürgen Brugger, Arnaud Bertsch, Clémentine Sophie Sarah Lipp

The loss of olfactory function has a profound impact on quality of life, affecting not only sensory perception but also memory, emotion, and overall well-being. Despite this, advancements in olfactory prostheses have lagged significantly behind those made ...

Elsevier2024

Fabrication of nanoporous membranes through silicon templates : two different approaches

Philippe Renaud, Arnaud Bertsch, Niccolo Piacentini, Stefano Silvio Giovanni Varricchio

We present here a novel approach to fabricate nanoporous membranes based on the use of sacrificial template structures to individually define pore parameters such as geometry, shape, and placement. Based on this rationale two different nano-fabrication met ...

2016

Method for manufacturing an active structure for a radiation detector and polymeric mold for the method

Arnaud Bertsch, Fabrizio Carbone, Alessandro Mapelli, Veronica Leccese, Michele Caldara

A method for manufacturing a scintillation detector structure including the steps of forming a plurality of first structures into a surface of a substrate to form a patterned substrate, filling the plurality of first structures and covering the surface of ...

2023

Beyond the Mask: Advancing Fabrication and Immersive Learning

Jürgen Brugger, Arnaud Bertsch, Jongeon Park, Berke Erbas, Pol Torres Vila, Chenxiang Zhang, Qinglan Shan

This paper presents advances in micro and nanofabrication techniques beyond conventional lithographic masks with examples of inkj et printing, nanostencil lithography, molecular-level doping methods, and thermal scanning probe lithography. These methods en ...

IEEE2025

On-Demand Nanoliter Sampling Probe for the Collection of Brain Fluid

Philippe Renaud, Hilal Lashuel, Arnaud Bertsch, Laure Menin, Daniel Ortiz Trujillo, Salvatore Novello, Joan Teixidor

Continuous fluidic sampling systems allow collection of brain biomarkers in vivo. Here, we propose a new sequential and intermittent sampling paradigm using droplets, called Droplet on Demand (DoD). It is implemented in a microfabricated neural probe and a ...

AMER CHEMICAL SOC2022

Nanovolcano microelectrode arrays: toward long-term on-demand registration of transmembrane action potentials by controlled electroporation

Philippe Renaud, Arnaud Bertsch, Nicolas Grégoire Maïno, Benoît Xavier Emmanuel Desbiolles

Volcano-shaped microelectrodes (nanovolcanoes) functionalized with nanopatterned self-assembled monolayers have recently been demonstrated to report cardiomyocyte action potentials after gaining spontaneous intracellular access. These nanovolcanoes exhibit ...

2020

A microfluidic-based frequency-multiplexing impedance sensor (FMIS)

Philippe Renaud, Arnaud Bertsch, Robert Meissner, Pierre Joris, Bilge Eker

We present a novel technology for the simultaneous and simple impedimetric screening of multiple microfluidic channels with only one electrode pair. We have exploited the frequency dimension to distinguish between up to three channels. Each ‘sub-sensor’ po ...

2012

pH Controlled Diffusion of Proteins with Different pI Values across a Nanochannel on a Chip

Philippe Renaud, Arnaud Bertsch, Reto Bruno Schoch

Electrostatic interactions dominate the diffusion of proteins in a nanochannel, which was measured and modeled for pH values above and below the isoelectric points of three lectin proteins. Maximal diffusion coefficients were obtained when the proteins wer ...

American Chemical Society (ACS)2006

Electrowriting of SU-8 Microfibers

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

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

Smart instrumentation for determination of ligament stiffness and ligament balance in total knee arthroplasty

Kamiar Aminian, Philippe Renaud, Arnaud Bertsch, Brigitte Jolles-Haeberli, Arash Arami, Willyan Hasenkamp Carreira

Ligament balance is an important and subjective task performed during total knee arthroplasty (TKA) procedure. For this reason, it is desirable to develop instruments to quantitatively assess the soft-tissue balance since excessive imbalance can accelerate ...

Elsevier Sci Ltd2014

SU8-silver photosensitive nanocomposite

Philippe Renaud, Heinrich Hofmann, Arnaud Bertsch, Sébastien Jiguet

2004

A Simple and Reliable PDMS and SU-8 Irreversible Bonding Method and Its Application on a Microfluidic-MEA Device for Neuroscience Research

Philippe Renaud, Arnaud Bertsch, Patrick Fraering, Marc Olivier Heuschkel, Sébastien Mosser, Yufei Ren

Polydimethylsiloxane (PDMS) and SU-8 are currently two very commonly used polymeric materials in the microfluidics field for biological applications. However; there is a pressing need to find a simple, reliable, irreversible bonding method between these tw ...

MDPI2015

An improved model for predicting electrical conductance in nanochannels

Philippe Renaud, Arnaud Bertsch, Mojtaba Taghipoor

Nanochannel conductance measurements are commonly performed to characterize nanofluidic devices Theoretical analysis and experimental investigations imply that the nanochannel conductance does not follow the macro-scale models. It is generally accepted tha ...

2015

Direct measurement of diffusing proteins in nanochannels using fluorescence correlation spectroscopy

Philippe Renaud, Theo Lasser, Arnaud Bertsch, Nicolas Durand

Transport of proteins in liquid-filled nanometer-sized apertures with charged surfaces based on both diffusion and convective flow is investigated with the use of fluorescence correlation spectroscopy. The measured fluctuations of fluorescence allow the ev ...

Elsevier2009

Flexible microchannels with integrated nanoporous membranes for filtration and separation of molecules and particles

Philippe Renaud, Arnaud Bertsch, Stefan Metz

This paper reports on the technology development and characterization of polyimide-based, microfluidic channels with integrated nanoporous membranes. A layer transfer and lamination technique is used to fabricate flexible microchannels from spin-on polyimi ...

2002

in vivo Electrical Impedance Spectroscopy of Tissue Reaction to Microelectrode Arrays

Philippe Renaud, Arnaud Bertsch, Jean-Charles Bensadoun, André Mercanzini, Philippe André Guy Colin

The goal of this experiment was to determine the electrical properties of the tissue reaction to implanted microelectrode arrays. We describe a new method of analyzing electrical impedance spectroscopy data to determine the complex impedance of the tissue ...

2009

Ion beam etching redeposition for 3D multimaterial nanostructure manufacturing

Philippe Renaud, Arnaud Bertsch, Benoît Xavier Emmanuel Desbiolles

A novel fabrication method based on the local sputtering of photoresist sidewalls during ion beam etching is presented. This method allows for the manufacture of three-dimensional multimaterial nanostructures at the wafer scale in only four process steps. ...

2019

Demonstration of cortical recording and reduced inflammatory response using flexible polymer neural probes

Philippe Renaud, Arnaud Bertsch, Jean-Charles Bensadoun, André Mercanzini, Philippe André Guy Colin, Karen Cheung, Marc Jasper Boers

2007