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Detection of volatile organic compounds by weight-detectable sensors coated with metal-organic frameworks.

ABSTRACT: Detection of volatile organic compounds (VOCs) using weight-detectable quartz microbalance and silicon-based microcantilever sensors coated with crystalline metal-organic framework (MOF) thin films is described in this paper. The thin films of two MOFs were grown from COOH-terminated self-assembled monolayers onto the gold electrodes of sensor platforms. The MOF layers worked as the effective concentrators of VOC gases, and the adsorption/desorption processes of the VOCs could be monitored by the frequency changes of weight-detectable sensors. Moreover, the MOF layers provided VOC sensing selectivity to the weight-detectable sensors through the size-selective adsorption of the VOCs within the regulated nanospace of the MOFs.

SUBMITTER: Yamagiwa H

PROVIDER: S-EPMC4150105 | biostudies-other | 2014

REPOSITORIES: biostudies-other

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Detection of volatile organic compounds by weight-detectable sensors coated with metal-organic frameworks.

Yamagiwa Hiroki H Sato Seiko S Fukawa Tadashi T Ikehara Tsuyoshi T Maeda Ryutaro R Mihara Takashi T Kimura Mutsumi M

Scientific reports 20140901

Detection of volatile organic compounds (VOCs) using weight-detectable quartz microbalance and silicon-based microcantilever sensors coated with crystalline metal-organic framework (MOF) thin films is described in this paper. The thin films of two MOFs were grown from COOH-terminated self-assembled monolayers onto the gold electrodes of sensor platforms. The MOF layers worked as the effective concentrators of VOC gases, and the adsorption/desorption processes of the VOCs could be monitored by th ...[more]

PMID: 25175808

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