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Nico de Rooij

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Publications associées (86)

Simultaneous Chemical Recording and Stimulation in the Brain Using an Assembly of Biosensor Silicon Microprobes and SU-8 Microinjectors

Nico de Rooij, Olivier Frey, Peter Van der Wal

In this contribution we present multi-channel microinjector arrays fabricated by a reliable three-layer SU-8 process and assembled with glutamate biosensor microprobes'. It enables local delivery of specific liquids into brain tissue for the stimulation or ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2009

A micro gas preconcentrator with improved performances for environmental monitoring

Nico de Rooij, Danick Briand, El Hadji Malick Camara

This paper presents the optimization of a micro gas preconcentrator applied to environmental monitoring. Different types of adsorbent materials introduced in silicon microchannels with various designs have been investigated and a special focus has been ded ...

2009

Influence of the Adsorbent Material in the Performances of a Micro Gas Preconcentrator

Nico de Rooij, Danick Briand, El Hadji Malick Camara

This paper presents the evaluation of different adsorbents for the improvement of the performances of a gas preconcentrator by targeting the adsorption of a large range of volatiles organics compounds (VOCs) The objectives of this work are to find the adeq ...

2009

PYROMEMS IGNITER BASED ON A TEMPERATURE GRADIENT: CONCEPT, FABRICATION AND CHARACTERIZATION

Nico de Rooij, David de Koninck, Danick Briand

A pyroMEMS igniter with increased combustion reliability is presented. The igniter consisted of a thin-film platinum Joule heater fabricated on a borosilicate glass substrate. Two different igniter layouts (meandering and annular) and three different binde ...

2009

Multi sensor platform on plastic foil for environmental monitoring

Nico de Rooij, Jérôme Courbat, Danick Briand

2009

AFM measurements of Martian soil particles

Nico de Rooij, Sebastian Gautsch

2009

Linear micromirror array for broadband femtosecond pulse shaping in phase and amplitude

Nico de Rooij, Jonathan Leon Wolf

We are developing a linear array of micromirrors designed for optical, femtosecond laser pulse shaping. It is a bulkmicromachined device, capable of retarding or diminishing certain laser frequencies in order to perform phase and amplitude modulation withi ...

2009

Gas Detection with a Micro FTIR Spectrometer in the MIR Region

Nico de Rooij, Hans Peter Herzig, Danick Briand, Toralf Scharf

We report on the application of a silicon micromachined lamellar grating interferometer in a Fourier Transform Infrared (FTIR) spectrometer for the detection of gases in the mid-infrared (MIR) region. The FTIR spectrometer was equipped with MIR optical fib ...

Elsevier2009

6Dynamic MEMS-based linear (1D) diffusers for laser beam homogenizing and beam shaping

Nico de Rooij, Wilfried Noell, Jonathan Masson

2009

Thermal Characterization of Polycrystalline CVD Diamond Thin Films

Nico de Rooij, Wilfried Noell, Danick Briand, Caglar Ataman, Sébastien Lani

An experimental thermal characterization method is developed for high thermal conductivity thin films. The method utilizes Ta/Pt resistors on microfabricated free-standing thin film structures both for heating and temperature monitoring at different positi ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2009

Tunable MEMS-based Optical Linear(1D)Diffusers for Dynamic Laser Beam Shaping and Homogenizing

Nico de Rooij, Wilfried Noell, Jonathan Masson

2009

Memory effects of ion-selective electrodes: Theory and computer simulation of the time-dependent potential response to multiple sample changes

Nico de Rooij

A straightforward theoretical description of the time-dependent response of ion-selective membrane electrodes to multiple sample changes is presented. The derivation makes use of an approximation for the ion fluxes in the membrane, and of the superposition ...

Elsevier2009

Far-infrared sensor with LPCVD-deposited low-stress Si-rich nitride absorber membrane—Part 2. Thermal property and sensitivity

Nico de Rooij, Fabio Jutzi

This is the second part of two articles reporting investigation on a thermal-detector-type far-infrared sensor operating in the 8–14 µm wavelength region using Low-Pressure Chemical Vapor Deposition (LPCVD) deposited low-stress Si-rich nitride (SiN) membra ...

2009

Ultra-low power metal oxide gas sensor on plastic foil

Nico de Rooij, Jérôme Courbat, Danick Briand

We report on the design and fabrication of ultra-low power metal-oxide (MOX) gas sensors on plastic foils envisioning their fabrication at large scale and low cost. A complete sensor solution is presented including its packaging at the foil level and the d ...

2009

Complex nanostructures in PMMA made by a single process step using e-beam lithography

Nico de Rooij, Michel Studer, Sebastian Gautsch

We present results on the single step fabrication of autocentered nanopillars with surrounding circular rim. This particular 3-dimensional shape is created by the energy density distribution of incident and backscattered electrons and reflects the dual beh ...

2009

Far-infrared sensor with LPCVD-deposited low-stress Si-rich nitride absorber membrane—Part 1. Optical absorptivity

Nico de Rooij, Fabio Jutzi

This is the first part of the two articles reporting investigation of a thermal detector-type far-infrared sensor operating in the 8–14µm wavelength, using Low-Pressure-Chemical-Vapor-Deposition (LPCVD)- deposited low-stress Si-rich nitride (SiN)membrane a ...

2009

Colorimetric gas sensors based on optical waveguides made on plastic foil

Nico de Rooij, Jérôme Courbat, Danick Briand

2009

Hybrid microfluidic cartridge formed by irreversible bonding of SU-8 and PDMS for multi-layer flow applications

Nico de Rooij, Sara Talaei, Olivier Frey, Peter Van der Wal

SU-8 and polydimethylsiloxane (PDMS) are both transparent materials with properties very convenient for rapid prototyping of microfluidic systems. However, previous efforts of combining these two materials failed due to poor adhesion between them. Herein, ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2009

Microcolumn design for a large scan field and pixel number

Nico de Rooij, Sebastian Gautsch

A different approach in microcolumn design is presented, aiming at a large number of pixels at minimal probe size for the deflected beam. An optimization routine resulted in a seven times magnifying column featuring a more than 7×7 mm2 scan field at 40 mm ...

2009

MEMS for space

Nico de Rooij, Wilfried Noell, Herbert Shea, Danick Briand, Sebastian Gautsch

Future space exploration will emphasize on cost effectiveness and highly focused mission objectives. Missions costs are directly proportional to its total weight, thus, the trend will be to replace bulky and heavy components of space carriers, communicatio ...

2009

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