General Information
    • ISSN: 2010-0221 (Print)
    • Abbreviated Title: Int. J. Chem. Eng. Appl.
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
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Editor-in-chief
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan
 

IJCEA 2020 Vol.11(1): 23-28 ISSN: 2010-0221
doi: 10.18178/ijcea.2020.11.1.774

Prototyping a Microfluidic Sensor for Real-Time Detection of Airborne Formaldehyde

Daniel Măriuța, Lucien Baldas, Stéphane Colin, Stéphane Le Calvé, Jan G. Korvink, and Jürgen J. Brandner
Abstract—Formaldehyde is a carcinogenic volatile organic compound that is largely used in the fabrication process of a variety of household products, being sometimes released indoor in concentrations that are beyond the limits recommended by the World Health Organization. The current commercially available formaldehyde sensors are far from simultaneously being ultra-portable, highly sensitive (< 1 ppb), real-time, and especially cost-efficient. This work aims to study the feasibility to miniaturize the formaldehyde sensing system down to a palm hand device, based on the microfluidic Hantzsch reaction method and fluorescence detection. A Gas-Liquid Micro- Reactor based on integration of a hydrophobic membrane inside a polymer flat chip is proposed and its formaldehyde trapping yield is planned to be further tested. By combining contact sensing with time-resolved CMOS sensors, the dimensions of the fluorescence detection component could go down to 10 mm × 20 mm × 30 mm by using commercialavailable components and therefore, enabling continuous and fast-response measurements using small volumes and low concentration samples.

Index Terms—Contact sensing, micro-fabrication, on-chip membrane-based gas-liquid contacting, time-resolved CMOS sensing.

Daniel Mariuta is with the Institute of Microstructure Technology (IMT), 76344 Eggenstein-Leopoldshafen, Karlsruhe Institute of Technology (KIT), Germany and Clément Ader Institute (ICA), CNRS, INSA, ISAESUPAERO, Mines Albi, UPS, Université de Toulouse, 31400 Toulouse, France (e-mail: daniel.mariuta@kit.edu).
Lucien Baldas and Stéphane Colin are with Clément Ader Institute (ICA), CNRS, INSA, ISAE-SUPAERO, Mines Albi, UPS, Université de Toulouse, 31400 Toulouse, France (e-mail: lucien.baldas@insa-toulouse.fr, stephane.colin@insa-toulouse.fr).
Stéphane Le Calvé is with L’Institut de Chimie et Procédés Pour L’énergie, L’Environnement et la Santé (ICPEES), Université de Strasbourg, France (e-mail: slecalve@unistra.fr).
Jahn G. Korvink and Jürgen J. Brandner are with the Institute of Microstructure Technology (IMT), 76344 Eggenstein-Leopoldshafen, Karlsruhe Institute of Technology (KIT) (e-mail: jan.korvink@kit.edu, juergen.brandner@kit.edu).

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Cite: Daniel Măriuța, Lucien Baldas, Stéphane Colin, Stéphane Le Calvé, Jan G. Korvink, and Jürgen J. Brandner, "Prototyping a Microfluidic Sensor for Real-Time Detection of Airborne Formaldehyde," International Journal of Chemical Engineering and Applications vol. 11, no. 1, pp. 23-28, 2020.

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