Plasmonic nose: integrating the MOF-enabled molecular preconcentration effect with a plasmonic array for recognition of molecular-level volatile organic compounds. Issue 20 (21st February 2018) - Koh, Charlynn Sher Lin
Abstract : A plasmonic nose is designed using a ZIF-encapsulated Ag nanocube array to concentrate molecules and electromagnetic field at the 3D nanometer scale. Abstract : Timely detection of toxic vapor is vital for safeguarding people's lives. Herein, we design a plasmonic nose based on a zeolitic imidazolate framework (ZIF)-encapsulated Ag nanocube array for ultratrace recognition of VOC vapor. The plasmonic nose enables in situ adsorption kinetics and recognition of various VOCs at ppm levels, eliminating false positives. Our approach provides a paradigm shift to next-generation, effective and specific gas sensors.