FR – Page 2 – TechConnect Briefs

Low-cost screen printed and embossed LAMP micro-reactors

Gosselin D., Gougis M., Baque M., Maffini-Alvaro V., Mailley P., Bourdat A.G., Vignoud S., Navarro F., Belgacem M.N., Chaussy D., Berthier J., CEA-Grenoble, FR

Introduction: Diagnostic is probably the most important step in the fight against infectious diseases and epidemics. While it is necessary to give a treatment to diseased people, it is just as important to give the [...]

Deterministic Lateral Displacement (DLD): Finite element modeling and experimental validation for particle trajectory and separation

Pariset E., Berthier J., Révol-Cavalier F., Pudda C., Gosselin D., Navarro F., Icard B., Agache V., CEA-LETI, FR

In biotechnology and biology, deterministic lateral displacement (DLD) arrays are used to separate particles based on their size, such as cells, bacteria, parasites and exosomes. DLD is very promising for sample preparation purposes as it [...]

On the use of polymeric additives to promote plasma separation from whole blood in open microchannels

Lee E., Berthier J., Laurent P., Navarro F., Cubizolles M., CEA, FR

Polymers additives in whole blood are known to modify blood physical properties. For example, Dextran molecules usually accelerate the aggregation of re-suspended RBCs in Ringer solutions. In this work, we first investigate the effect of [...]

Harvesting light energy with optical rectennas

Reynaud C., Duché D., Palanchoke U., Dang F-X., Patrone L., Le Rouzo J., Escoubas L., Gourgon C., Charaï A., Alfonso C., Margeat O., Ackermann J., Balaban S., Simon J-J., Aix Marseille University, FR

As predicted by Schockley and Queisser in the 60’s, the photoconversion phenomenon involved in mono junctions solar cells has an upper limit of 33% [1]. Other concepts, such as high efficiency tandem solar cells designed [...]

Optical characterizations of multi-shape nanoparticles in polymer thin film layers

Carlberg M., Pourcin F., Margeat O., Le Rouzo J., Berginc G., Sauvage R.-M., Ackermann J., Escoubas L., Aix Marseille University, FR

Metallic nanoparticles are currently a hot topic thanks to their tuneable optical properties. Indeed, their light absorption or scattering is material, size and shape, but also environment dependent. We aim to take advantage of these [...]

SPICE Compact Modeling for Design of Innovative Integrated Circuits in CEA-LETI

Martin P., Lucci L., Reyboz M., Barbe J.-C., CEA-LETI, FR

This paper presents an overview of the recent compact modeling activity in CEA-LETI. Examples of Verilog-A modeling using the surface potential approach of field effect transistors, such as High Electron Mobility Transistors (HEMTs) AlGaN/GaN power [...]

Compact modeling for UTBB-FDSOI technologies: Main challenges and possible solutions

Poiroux T., CEA-LETI, FR

Fully-Depleted Silicon-On-Insulator (FDSOI) technologies featuring Ultra-Thin silicon Body and Buried oxide (UTBB) have now entered into industrial production stage. These technologies present several decisive advantages over other options, such as excellent transistor electrostatic control, very [...]

Study of low Rayleigh heaters for biomedical diagnostic tools

Gosselin D., Berthier J., Delon A., Chaussy D., Belgacem N., Delapierre G., CEA, FR

Microfluidic is a very promising technology to improve biomedical devices and to provide diagnostic tools for the developing world. The World Health Organization has introduced a list of requirements that an ideal diagnostic tool for [...]

Two-step approach for the nanofabrication of highly ordered ultra-long porous gold nanowires with an adjustable porosity for SERS-based sensors

Chauvin A., Delacôte C., Molina-Luna L., Boujtita M., Thiry D., Du K., Ding J., Choi C-H, Humbert B., Mevellec J.-Y., Tessier P.-Y., El Mel A.-A., Institut des matériaux Jean Rouxel, FR

Recently, nanoporous gold has been pointed out as a promising candidate for the development of SERS-based sensors for the detection of environmental toxins and small molecules [1]. One way to improve the detection ability of [...]

Open Droplets: Programming Chemical Flow in Microfluidics

Baret J-C., University of Bordeaux, FR

Droplet-based microfluidics is the key technology for the miniaturization and automation of assays in microcompartments. It relies on the use of emulsion droplets as microreactors each encapsulating a biological system of interest (genes, cells, drugs,...) [...]