Polymer-metal organic framework composite films as affinity layer for capacitive sensor devices

Sumit Sachdeva; D Soccol; D Gravesteijn; Freek Kapteijn; Ernst Sudholter; J. Gascon; Louis de Smet

doi:10.1021/acssensors.6b00295

Polymer-metal organic framework composite films as affinity layer for capacitive sensor devices

Sumit Sachdeva, D Soccol, D Gravesteijn, Freek Kapteijn, Ernst Sudholter, J. Gascon, Louis de Smet

ChemE/Catalysis Engineering

Research output: Contribution to journal › Letter › Scientific › peer-review

44 Citations (Scopus)

Abstract

We report a simple method for sensor development using polymer-MOF composite films. Nanoparticles of NH2-MIL-53(Al) dispersed in a Matrimid polyimide were applied as a thin film on top of capacitive sensor devices with planar electrodes. These drop-cast films act as an affinity layer. Sensing studies carried out with methanol vapor using impedance spectroscopy demonstrate that the presence of MOF enhances the overall response and lowers the detection limit compared to MOF-free polymer films and bare devices. This can be understood by additional changes of the local polarity of the composite films due to higher adsorption of methanol by the porous MOF particles. We expect that this work will stimulate the design of composite polymeric affinity layers for a range of analytes by a proper choice of dispersed MOF particles.

Original language	English
Pages (from-to)	1188-1192
Number of pages	5
Journal	ACS Sensors
Volume	1
Issue number	10
DOIs	https://doi.org/10.1021/acssensors.6b00295
Publication status	Published - 2016

Keywords

capacitive sensors
metal−organic frameworks
NH2-MIL-53(Al)
planar electrodes
polymer-MOF composites

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10.1021/acssensors.6b00295

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title = "Polymer-metal organic framework composite films as affinity layer for capacitive sensor devices",

abstract = "We report a simple method for sensor development using polymer-MOF composite films. Nanoparticles of NH2-MIL-53(Al) dispersed in a Matrimid polyimide were applied as a thin film on top of capacitive sensor devices with planar electrodes. These drop-cast films act as an affinity layer. Sensing studies carried out with methanol vapor using impedance spectroscopy demonstrate that the presence of MOF enhances the overall response and lowers the detection limit compared to MOF-free polymer films and bare devices. This can be understood by additional changes of the local polarity of the composite films due to higher adsorption of methanol by the porous MOF particles. We expect that this work will stimulate the design of composite polymeric affinity layers for a range of analytes by a proper choice of dispersed MOF particles.",

keywords = "capacitive sensors, metal−organic frameworks, NH2-MIL-53(Al), planar electrodes, polymer-MOF composites",

author = "Sumit Sachdeva and D Soccol and D Gravesteijn and Freek Kapteijn and Ernst Sudholter and J. Gascon and {de Smet}, Louis",

year = "2016",

doi = "10.1021/acssensors.6b00295",

language = "English",

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pages = "1188--1192",

journal = "ACS Sensors",

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publisher = "American Chemical Society (ACS)",

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TY - JOUR

T1 - Polymer-metal organic framework composite films as affinity layer for capacitive sensor devices

AU - Sachdeva, Sumit

AU - Soccol, D

AU - Gravesteijn, D

AU - Kapteijn, Freek

AU - Sudholter, Ernst

AU - Gascon, J.

AU - de Smet, Louis

PY - 2016

Y1 - 2016

N2 - We report a simple method for sensor development using polymer-MOF composite films. Nanoparticles of NH2-MIL-53(Al) dispersed in a Matrimid polyimide were applied as a thin film on top of capacitive sensor devices with planar electrodes. These drop-cast films act as an affinity layer. Sensing studies carried out with methanol vapor using impedance spectroscopy demonstrate that the presence of MOF enhances the overall response and lowers the detection limit compared to MOF-free polymer films and bare devices. This can be understood by additional changes of the local polarity of the composite films due to higher adsorption of methanol by the porous MOF particles. We expect that this work will stimulate the design of composite polymeric affinity layers for a range of analytes by a proper choice of dispersed MOF particles.

AB - We report a simple method for sensor development using polymer-MOF composite films. Nanoparticles of NH2-MIL-53(Al) dispersed in a Matrimid polyimide were applied as a thin film on top of capacitive sensor devices with planar electrodes. These drop-cast films act as an affinity layer. Sensing studies carried out with methanol vapor using impedance spectroscopy demonstrate that the presence of MOF enhances the overall response and lowers the detection limit compared to MOF-free polymer films and bare devices. This can be understood by additional changes of the local polarity of the composite films due to higher adsorption of methanol by the porous MOF particles. We expect that this work will stimulate the design of composite polymeric affinity layers for a range of analytes by a proper choice of dispersed MOF particles.

KW - capacitive sensors

KW - metal−organic frameworks

KW - NH2-MIL-53(Al)

KW - planar electrodes

KW - polymer-MOF composites

U2 - 10.1021/acssensors.6b00295

DO - 10.1021/acssensors.6b00295

M3 - Letter

SN - 2379-3694

VL - 1

SP - 1188

EP - 1192

JO - ACS Sensors

JF - ACS Sensors

IS - 10

ER -

Polymer-metal organic framework composite films as affinity layer for capacitive sensor devices

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