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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lebental, Bérengère
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2023Selective Outdoor Humidity Monitoring Using Epoxybutane Polyethyleneimine in a Flexible Microwave Sensorcitations
- 2022Electrical and Electrochemical Sensors Based on Carbon Nanotubes for the Monitoring of Chemicals in Water—A Reviewcitations
- 2022Comparing Commercial Metal-Coated AFM Tips and Home-Made Bulk Gold Tips for Tip-Enhanced Raman Spectroscopy of Polymer Functionalized Multiwalled Carbon Nanotubescitations
- 2019Optical chemosensors for metal ions in aqueous medium with polyfluorene derivatives: Sensitivity, selectivity and regenerationcitations
- 2018Oxidation-based continuous laser writing in vertical nano-crystalline graphite thin films
- 2018A graphene-based non-volatile memory
- 2017Graphitization and amorphization of textured carbon using high-energy nanosecond laser pulses
- 2016Oxidation-Based Continuous Laser Writing in Vertical Nano-Crystalline Graphite Thin Filmscitations
- 2016Nanosensors for sustainable cities - From fundamentals to deployments
- 2016Graphitization and amorphization of textured carbon using high-energy nanosecond laser pulsescitations
- 2015A graphene-based non-volatile memory
- 2014A Novel Weigh-In Motion Sensor Using An Asphalt-Embedded Thin Film of Graphene-On-Clay and Carbon-Nanotubes
- 2014An Innovative Nanosensor for Weigh-In-Motion Applications
- 2014An Innovative Nanosensor for Weigh-In-Motion Applications
- 2014Nanosecond-laser-induced graphitization and amorphization of thin nano-crystalline graphite films
- 2012Carbon nanotubes and graphene-based microsonar for embedded monitoring of microporosity
- 2012Visco-acoustic modelling of a vibrating plate interacting with water confined in a domain of micrometric sizecitations
- 2011Capacitive ultrasonic micro-transducer made of carbon nanotubes: prospects for the in-situ embedded non-destructive testing of durability in cementitious materialscitations
- 2011Aligned carbon nanotube based ultrasonic microtransducers for durability monitoring in civil engineeringcitations
- 2011Nanosensors for nanoscale structural health monitoring in civil engineering: new insight on carbon nanotubes devices
- 2010Instrumentation of cementitious materials by embedded ultrasonic micro-transducers made of carbone nanotubes : prospects for in-situ non-destructive testing of durability
- 2009In-situ non destructive testing of cementitous materials via embedded ultrasonic transducers made up of carbon nanotubes.
- 2009Carbon nanotubes based ultrasonic transducer: realization process, morphological and mechanical properties
Places of action
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article
Selective Outdoor Humidity Monitoring Using Epoxybutane Polyethyleneimine in a Flexible Microwave Sensor
Abstract
The rise of gas-sensing applications and markets has led to microwave sensors associated to polymer-based sensitive materials gaining a lot of attention, as they offer the possibility to target a large variety of gases (as polymers can be easily functionalised) at ultra-low power and wirelessly (which is a major concern in the Internet of Things). A two-channel microstrip sensor with one resonator coated with 1,2 epoxybutane-functionalised poly(ethyleneimine) (EB-PEI) and the other left bare was designed and fabricated for humidity sensing. The sensor, characterised under controlled laboratory conditions, showed exponential response to RH between 0 and 100%, which is approximated to −1.88 MHz/RH% (−0.03 dB/RH%) and −8.24 MHz/RH% (−0.171 dB/RH%) in the RH ranges of 30–80% and 80–100%, respectively. This is the first reported use of EB-PEI for humidity sensing, and performances, especially at high humidity level (RH > 80%), as compared with transducer working frequencies, are better than the state of the art. When further tested in real outdoor conditions, the sensor shows satisfying performances, with 4.2 %RH mean absolute error. Most importantly, we demonstrate that the sensor is selective to relative humidity alone, irrespective of the other environmental variables acquired during the campaign (O3, NO, NO2, CO, CO2, and Temperature). The sensitivities obtained outdoors in the ranges of 50–70% and 70–100% RH (−0.61 MHz/%RH and −3.68 MHz/%RH, respectively) were close to lab results (−0.95 MHz/%RH and −3.51 MHz/%RH, respectively).