Unusual Selective Monitoring of <i>N,N</i>-Dimethylformamide in a Two-Dimensional Material Field-Effect Transistor
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- Akito Fukui
- Department of Physics and Electronics, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Keigo Matsuyama
- Department of Physics and Electronics, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Hiroaki Onoe
- Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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- Shun Itai
- Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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- Hidekazu Ikeno
- Department of Materials Science, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Shunsuke Hiraoka
- Department of Materials Science, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Kousei Hiura
- Department of Materials Science, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Yuh Hijikata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
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- Jenny Pirillo
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
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- Takahiro Nagata
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
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- Kuniharu Takei
- Department of Physics and Electronics, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Takeshi Yoshimura
- Department of Physics and Electronics, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Norifumi Fujimura
- Department of Physics and Electronics, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
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- Daisuke Kiriya
- Department of Physics and Electronics, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
説明
<jats:p>N,N-Dimethylformamide (DMF) is an essential solvent in industries and pharmaceutics. Its market size range was estimated to be 2 billion US dollars in 2022. Monitoring DMF in solution environments in real time is significant because of its toxicity. However, DMF is not a redox-active molecule; therefore, selective monitoring DMF in solutions in real time requires an unprecedented design at the scale of atomic resolution. In this paper, we propose a selective DMF sensor using a molybdenum disulfide (MoS2) field-effect transistor (FET). The sensor responds to DMF molecules, but not to similar molecules of formamide, N,N-diethylformamide, and N,N-dimethylacetamide. The plausible atomic mechanism is the oxygen substitution sites on MoS2, on which the DMF molecule shows exceptional orientation. The thin structure of MoS2-FET can be incorporated into a microfluidic chamber, which leads to DMF monitoring in real time by exchanging solutions subsequently. The designed device shows DMF monitoring in NaCl ionic solutions from 1 to 200 L/mL. This work proposes the concept of selectively monitoring redox-inactive molecules based on the non-ideal atomic affinity site on the surface of two-dimensional semiconductors.</jats:p>
収録刊行物
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- ACS Nano
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ACS Nano 17 (15), 14981-14989, 2023-07-17
American Chemical Society (ACS)
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詳細情報 詳細情報について
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- CRID
- 1360302865732901120
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- ISSN
- 1936086X
- 19360851
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE