Effective Dissolution of a Gaseous Odorant in Liquid Using Gas Flow

Author:

Nakane Takuma12,Osaki Toshihisa1ORCID,Mimura Hisatoshi1ORCID,Takamori Sho1ORCID,Miki Norihisa12ORCID,Takeuchi Shoji134ORCID

Affiliation:

1. Artificial Cell Membrane Systems Group Kanagawa Institute of Industrial Science and Technology 3‐2‐1 Sakado, Takatsu‐ku Kawasaki Kanagawa 213‐0012 Japan

2. Center for Multidisciplinary and Design Science School of Integrated Design Engineering Keio University 3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama Kanagawa 223–8522 Japan

3. Institute of Industrial Science The University of Tokyo 4‐6‐1 Komaba Meguro‐ku Tokyo 153–8505 Japan

4. Department of Mechano‐Informatics Graduate School of Information Science and Technology The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113–8656 Japan

Abstract

AbstractOlfactory receptors are known for their high specificity, sensitivity, and nanometer‐sized sensing element, making them ideal for in situ odorant sensor applications. However, one of the major limitations of these sensors is the requirement for an aqueous environment to maintain their function, while most odorants are poorly soluble in water. To address this issue, a microfluidic device consisting of a gas‐flow channel and a microwell is proposed that enables the effective dissolution of a gaseous odorant in an aqueous solution. Computational simulations are used to design the gas‐flow channel and the well, and the performance of the odorant dissolution is verified using the fabricated device. This study considers that convection in water induced by the gas flow enhances the dissolution of a gaseous odorant. The feasibility of the device is demonstrated for on‐site detection of a gaseous odorant. This approach facilitates the development of highly responsive and portable sensors utilizing olfactory receptors, offering a promising solution to the limitations of current odorant sensors.

Funder

Ministry of Education, Culture, Sports, Science and Technology

Japan Science and Technology Agency

Publisher

Wiley

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