Dielectrophoresis-Assembled Zeolitic Imidazolate Framework Nanoparticle-Coupled Resonators for Highly Sensitive and Selective Gas Detection
Citations Over TimeTop 10% of 2013 papers
Abstract
This work reports on zeolitic imidazolate framework (ZIF)-coupled microscale resonators for highly sensitive and selective gas detection. The combination of microscale resonators and nanoscale materials simultaneously permits the benefit of larger capture area for adsorption from the resonator and enhanced surface adsorption capacity from the nanoscale ZIF structure. Dielectrophoresis (DEP) was demonstrated as a novel method for directly assembling concentrated ZIF nanoparticles on targeted regions of silicon resonant sensors. As part of the dielectrophoretic assembly process, the first ever measurements of the Clausius-Mossotti factor for ZIFs were conducted to determine optimal conditions for DEP assembly. The first ever real-time adsorption measurements of ZIFs were also performed to investigate the possibility of inherent gas selectivity. The ZIF-coupled resonators demonstrated sensitivity improvement up to 150 times over a bare silicon resonator with identical dimensions, and real-time adsorption measurements of ZIFs revealed different adsorption time constants for IPA and CO2.
Related Papers
- → High-Throughput Synthesis of Zeolitic Imidazolate Frameworks and Application to CO 2 Capture(2008)4,105 cited
- → Zeolitic imidazolate framework-8 as efficient pH-sensitive drug delivery vehicle(2012)694 cited
- → Carbon nanotube‐based hot‐film and temperature sensor assembled by optically‐induced dielectrophoresis(2014)12 cited
- → Zeolitic Imidazolate/Fe3O4 Nanocomposite for Removal of Polystyrene and 4-tert-butylphenol via Adsorption(2023)4 cited
- → Nitrogen-Doped Carbon Dots in Zeolitic Imidazolate Framework Core-Shell Nanocrystals: Synthesis and Characterization(2022)1 cited