Determination of Volatile Organic Compounds by a Novel Polymer Spin-Coated Thin Film and Surface Plasmon Resonance

A tip-based fibreoptic localised surface plasmon resonance (LSPR) sensor is reported for the sensing of volatile organic compounds (VOCs). The sensor is developed by coating the tip of a multi-mode optical fibre with gold nanoparticles (size: 40 nm) via a chemisorption process and further functionalisation with the HKUST-1 metal–organic framework (MOF) via a layer-by-layer process. Sensors coated with different cycles of MOFs (40, 80 and 120) corresponding to different crystallisation processes are reported. There is no measurable response to all tested volatile organic compounds (acetone, ethanol and methanol) in the sensor with 40 coating cycles. However, sensors with 80 and 120 coating cycles show a significant redshift of resonance wavelength (up to ~9 nm) to all tested volatile organic compounds as a result of an increase in the local refractive index induced by VOC capture into the HKUST-1 thin film. Sensors gradually saturate as VOC concentration increases (up to 3.41%, 4.30% and 6.18% in acetone, ethanol and methanol measurement, respectively) and show a fully reversible response when the concentration decreases. The sensor with the thickest film exhibits slightly higher sensitivity than the sensor with a thinner film. The sensitivity of the 120-cycle-coated MOF sensor is 13.7 nm/% (R2 = 0.951) with a limit of detection (LoD) of 0.005% in the measurement of acetone, 15.5 nm/% (R2 = 0.996) with an LoD of 0.003% in the measurement of ethanol and 6.7 nm/% (R2 = 0.998) with an LoD of 0.011% in the measurement of methanol. The response and recovery times were calculated as 9.35 and 3.85 min for acetone; 5.35 and 2.12 min for ethanol; and 2.39 and 1.44 min for methanol. The humidity and temperature crosstalk of 120-cycle-coated MOF was measured as 0.5 ± 0.2 nm and 0.5 ± 0.1 nm in the humidity range of 50–75% relative humidity (RH) and temperature range of 20–25 °C, respectively.

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Highly-Selective Optoelectronic Nose Based on Surface Plasmon Resonance Imaging for Sensing Volatile Organic Compounds

Analytical Chemistry ◽

10.1021/acs.analchem.8b02036 ◽

2018 ◽

Vol 90 (16) ◽

pp. 9879-9887 ◽

Cited By ~ 28

Author(s):

Sophie Brenet ◽

Aurelian John-Herpin ◽

François-Xavier Gallat ◽

Benjamin Musnier ◽

Arnaud Buhot ◽

...

Keyword(s):

Surface Plasmon Resonance ◽

Volatile Organic Compounds ◽

Organic Compounds ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Surface Plasmon Resonance Imaging ◽

Resonance Imaging ◽

Volatile Organic

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Improvement of sensitivity of surface plasmon resonance imaging for the gas-phase detection of volatile organic compounds

Talanta ◽

10.1016/j.talanta.2020.120777 ◽

2020 ◽

Vol 212 ◽

pp. 120777 ◽

Cited By ~ 2

Author(s):

Sophie Brenet ◽

Jonathan S. Weerakkody ◽

Arnaud Buhot ◽

François-Xavier Gallat ◽

Raphael Mathey ◽

...

Keyword(s):

Surface Plasmon Resonance ◽

Volatile Organic Compounds ◽

Gas Phase ◽

Organic Compounds ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Surface Plasmon Resonance Imaging ◽

Phase Detection ◽

Resonance Imaging ◽

Volatile Organic

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An Overview of Artificial Olfaction Systems with a Focus on Surface Plasmon Resonance for the Analysis of Volatile Organic Compounds

Biosensors ◽

10.3390/bios11080244 ◽

2021 ◽

Vol 11 (8) ◽

pp. 244

Author(s):

Marielle El Kazzy ◽

Jonathan S. Weerakkody ◽

Charlotte Hurot ◽

Raphaël Mathey ◽

Arnaud Buhot ◽

...

Keyword(s):

Surface Plasmon Resonance ◽

Volatile Organic Compounds ◽

Organic Compounds ◽

Surface Plasmon ◽

Plasmon Resonance ◽

High Sensitivity ◽

Label Free ◽

Electronic Noses ◽

Prism Coupler ◽

Volatile Organic

The last three decades have witnessed an increasing demand for novel analytical tools for the analysis of gases including odorants and volatile organic compounds (VOCs) in various domains. Traditional techniques such as gas chromatography coupled with mass spectrometry, although very efficient, present several drawbacks. Such a context has incited the research and industrial communities to work on the development of alternative technologies such as artificial olfaction systems, including gas sensors, olfactory biosensors and electronic noses (eNs). A wide variety of these systems have been designed using chemiresistive, electrochemical, acoustic or optical transducers. Among optical transduction systems, surface plasmon resonance (SPR) has been extensively studied thanks to its attractive features (high sensitivity, label free, real-time measurements). In this paper, we present an overview of the advances in the development of artificial olfaction systems with a focus on their development based on propagating SPR with different coupling configurations, including prism coupler, wave guide, and grating.

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