%0 Journal Article
%T ZIF-8-Based Surface Plasmon Resonance and Fabry-Pérot Sensors for Volatile Organic Compounds.
%A Estany-Macià A
%A Fort-Grandas I
%A Joshi N
%A Svendsen WE
%A Dimaki M
%A Romano-Rodríguez A
%A Moreno-Sereno M
%J Sensors (Basel)
%V 24
%N 13
%D 2024 Jul 5
%M 39001159
%F 3.847
%R 10.3390/s24134381
%X This work explores the use of ZIF-8, a metal-organic framework (MOF) material, for its use in the optical detection of volatile organic compounds (VOCs) in Fabry-Pérot and surface plasmon resonance (SPR)-based sensors. The experiments have been carried out with ethanol (EtOH) and show response times as low as 30 s under VOC-saturated atmospheres, and the estimated limit of detection is below 4000 ppm for both sensor types. The selectivity towards other VOCs is relatively poor, although the dynamics of adsorption/desorption differ for each VOC and could be used for selectivity purposes. Furthermore, the hydrophobicity of ZIF-8 has been confirmed and the fabricated sensors are insensitive to this compound, which is a very attractive result for its practical use in gas sensing devices.