Porosity matters on electronics

Detection and quantification of chemical species is a critical and challenging task for biotechnology and environmental monitoring. A key principle for the fabrication of chemical sensors is to sequentially implement a recognition-transduction protocol. Here, we take advantage of the molecular recognition properties of porous materials and integrate them into a sophisticated electronic sensor based on quartz crystal microbalance (QCM) technology. We use this system not only for the improvement of sensor performance, selectivity and sensitivity, but also for the fundamental study of adsorption/desorption kinetics.



<Original Papers>

“Porous coordination polymer hybrid device with quartz oscillator: effect of crystal size on sorption kinetics”
J. Am. Chem. Soc. 2011, 133, 11932-11935.

“Crystal morphology-directed framework orientation in porous coordination polymer films and freestanding membranes via Langmuir-Blodgettry”
J. Mater. Chem. 2012, 22, 10159-10165.

“Binary Janus Porous Coordination Polymer Coatings for Sensor Devices with Tunable Analyte Affinity”
Angew. Chem. Int. Ed. 2013, 52, 341-345.

“Impact of Molecular Clustering Inside Nanopores on Desorption Processes”
J. Am. Chem. Soc. 2013, 135, 4608-4611.

“Impact of Crystal Orientation on the Adsorption Kinetics of a Porous Coordination Polymer/Quartz Crystal Microbalance Hybrid Sensor”
J. Mater. Chem. C 20142, 3336-3344.

“Terahertz phase contrast imaging of sorption kinetics in porous coordination polymer nanocrystals using differential optical resonator”
Opt. Express 201422, 11061-11069.

“Hierarchical structuring of metal-organic framework thin-films on quartz crystal microbalance (QCM) substrates for selective adsorption applications”
J. Mater. Chem. A. 2015, 3, 23385-23394.