Targeting biomarkers in the gas phase through a chemoresistive electronic nose based on graphene functionalized with metal phthalocyanines
Sonia Freddi, Camilla Marzuoli, Stefania Pagliara, Giovanni Drera, L. Sangaletti
Abstract
has been carried out drawing the calibration curve and estimating the detection limit for all the sensors. The discrimination capability of the array has then been tested, carrying out exposure to several gases (hydrogen sulfide, acetone, ethanol, 2-propanol, water vapour and benzene) and analysing the data through principal component analysis (PCA). The PCA pattern recognition results show that the developed e-nose is able to discriminate all the tested gases through the synergic contribution of all sensors.
Topics & Concepts
Electronic noseGrapheneChemiresistorMaterials scienceNanotechnologySensor arrayComputer scienceMachine learningAdvanced Chemical Sensor TechnologiesGas Sensing Nanomaterials and SensorsAnalytical Chemistry and Sensors