FR – Page 23 – TechConnect Briefs

Smart Pressure Sensor on SOI optimized by Finite Element Analysis for Heatspreader Integration

Bercu B., Montès L., Morfouli P., INPG-MINATEC, FR

Finite element analysis is used to maximize the response of the piezoresistive pressure sensor into an integrated heatspreader, designed for high-power electronic device cooling. This study shows the possibility of obtaining small area piezoresistive pressure [...]

MEMS-based solid propellant micro-rocket with micro-igniter on thin membrane for next generation of low-cost small space and aeronautic engines

Chaalane A., Rossi C., Estève D., LAAS/CNRS, FR

In this work, a new planar structure of solid propellant micro-rocket, for microspacecraft and Micro-Air-Vehicle applications is reported. These applications require extremely low levels of thrust and impulse in a very sort time. We have [...]

Local diffuse light scattering and surface inspection

Caumont M., Bacsa W.S., University Paul Sabatier, FR

Overlap of the incident and scattered field from local surface non-uniformities lead to lateral standing waves which can be mapped using a scanning optical probe in collection mode. The lateral standing waves form diffraction fringes [...]

Playing with actuators in microfluidic systems

Tabeling P., Barbier V., Goulpeau J., Lonetti B., Willaime H., ESPCI, FR

In the lab-on a chips of the future, flows will be handled at the microscale through mazes of microchannels. For such systems, it will be crucial to integrate a number of actuators on the chip [...]

DNA repair enzyme analysis on EWOD fluidic microprocessor

Jary D., Chollat-Namy A., Fouillet Y., Boutet J., Chabrol C., Castellan G., Gasparutto D., Peponnet C., CEA, FR

DNA repair enzyme analysis on EWOD fluidic microprocessor An original analytical assay, aimed at monitoring DNA lesions repair activities has been combined to a dedicated microfluidic EWOD (electrowetting on dielectric) microprocessor.The quantification of enzymatic repair activities [...]

Testing the validity of small angle and adsorption-based characterization techniques by atomic-scale simulation

Pellenq R.J.-M., Coasne B., Centre de Recherche en Matière Condensée et Nanosciences, CNRS, FR

This work aims at testing small angle scattering and adsorption/desorption-based characterization techniques routinely used for nanoporous material characterization (specific surface and pore size distribution measurements). For that purpose, we report Grand Canonical Monte Carlo results [...]

Modeling microdrop motion between covered and open regions of EWOD microsystems

Berthier J., Clementz Ph., Roux J-M, Fouillet Y., Peponnet C., CEA-LETI, FR

Digital microfluidics is a promising way to manipulate biological targets like DNA, proteins or cells in very small liquid volumes. The advantages of such devices are the use of lesser quantities of costly reagents, better [...]

Realistic molecular models of porous carbons obtained from Reverse Monte Carlo simulations

Jain S.K., Gubbins K.E., Pellenq R.J.-M., Centre de Recherche en Matière Condensée et Nanosciences, CNRS, FR

We present a simulation protocol based on Reverse Monte Carlo (RMC) which incorporates an energy constraint to model porous carbons. We use our simulation protocol to build molecular models of 3 saccharose based carbons included [...]

Nanoparticles in chemistry and their industrial applications

Maestro P., Bomal Y., Chopin T., RHODIA RECHERCHES ET TECHNOLOGIES, FR

Micro- and nanotechnologies are at the centre of numerous investigations and huge investments, essentially in the areas of information technologies and health care . The technologies utilised mainly take advantage of microelectronics and/or rather sophisticated [...]

Cubic and oriented Ag nano-particles by high vacuum evaporation

Berner D., Zuppiroli L., Caumont M., Bacsa W.S., University Paul Sabatier, FR

Optical properties of metal nanoparticles depend strongly on size and shape. Controlling these parameters implies improving the control of their optical properties. Metal nanoparticles find applications in photonics, biological labeling and catalysis. A number of [...]