Publications by El Hadji Malick Camara

Highly transparent humidity sensor with thin cellulose acetate butyrate and hydrophobic AF1600X vapor permeating layers fabricated by screen printing

Nico de Rooij, Danick Briand, El Hadji Malick Camara, Jun Li, Hongyu Li, Hongwei Jiang

2018

Gram-type differentiation of bacteria with 2D hollow photonic crystal cavities

Romuald Houdré, Rita Therisod, El Hadji Malick Camara

Fast and label-free techniques to analyze viruses and bacteria are of crucial interest in biological and bio-medical applications. For this purpose, optofluidic systems based on the integration of photonic structures with microfluidic layers were shown to ...

2018

Fully inkjet printed SnO2 gas sensor on plastic substrate

Nico de Rooij, Danick Briand, El Hadji Malick Camara, Mathilde Rieu

A tin dioxide (SnO2) sensor was fabricated by inkjet printing onto polyimide foil. Gold electrodes and heater were printed on each side of the substrate. A SnO2 based ink was developed by sol-gel method and jetted onto the electrodes. A final annealing at ...

Elsevier2016

Tubular gas preconcentrators based on inkjet printed micro-hotplates on foil

Nico de Rooij, Danick Briand, El Hadji Malick Camara

This paper presents the design and implementation of a foil gas preconcentrator (FGP) based on a gold micro-hotplate inkjet printed on a polyimide (PI) substrate. The device is made on flexible foil using printing whereas all preconcentrators seen in liter ...

Elsevier2016

Preconcentration Modeling for the Optimization of a Micro Gas Preconcentrator Applied to Environmental Monitoring

Nico de Rooij, Danick Briand, El Hadji Malick Camara

This paper presents the optimization of a micro gas preconcentrator (mu-GP) system applied to atmospheric pollution monitoring, with the help of a complete modeling of the preconcentration cycle. Two different approaches based on kinetic equations are used ...

American Chemical Society2015

Development of a New Generation of Ammonia Sensors on Printed Polymeric Hotplates

Nico de Rooij, Danick Briand, Francisco Molina Lopez, Andres Felipe Vasquez Quintero, El Hadji Malick Camara

Conducting polyaniline-based chemiresistors on printed polymeric micro-hotplates were developed, showing sensitive and selective detection of ammonia vapor in air. The devices consist of a fully inkjet-printed silver heater and interdigitated electrodes on ...

American Chemical Society2014

A micro gas preconcentrator with improved performance for pollution monitoring and explosives detection

Nico de Rooij, Danick Briand, El Hadji Malick Camara

This paper presents the optimization of a micro gas preconcentrator based on a micro-channel in porous and non-porous silicon filled with an adequate adsorbent. This micro gas preconcentrator is both applicable in the fields of atmospheric pollution monito ...

Elsevier2011

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

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

Microfluidic Channels in Porous Silicon Filled with a Carbon Absorbent for GAS Preconcentration

Nico de Rooij, Danick Briand, Jérôme Courbat, El Hadji Malick Camara

IEEE2007