Graphene smells NO2
An electronic nose based on covalently modified graphene is very sensitive to nitrogen dioxide, according to an Italian-Flemish team in Chemistry A European Journal.
Nitrogen dioxide (NO2) is one of the most common air pollutants and affects the lungs. It is also a biomarker for people with COPD or childhood asthma. It is therefore important to be able to detect it. With this in mind, the groups of Luigi Sangaletti (Università Cattolica del Sacro Cuore) and Steven De Feyter (KU Leuven) have developed an electronic nose (e-nose) that is still sensitive to NO2 from a mixture of gases.
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