2020 Fiscal Year Annual Research Report
Creation of innovative on-site nano-measurement technology for marine resource exploration and environmental measurement
| Project/Area Number |
19H02354
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| Research Institution | The University of Tokyo |
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Principal Investigator |
クレモン ニコラ 東京大学, 生産技術研究所, 客員研究員 (10838311)
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| Co-Investigator(Kenkyū-buntansha) |
南 豪 東京大学, 生産技術研究所, 准教授 (70731834)
福場 辰洋 国立研究開発法人海洋研究開発機構, 研究プラットフォーム運用開発部門, 主任研究員 (80401272)
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| Project Period (FY) |
2019-04-01 – 2023-03-31
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| Keywords | nanosensors / rare-earth metals / deep-sea research |
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| Outline of Annual Research Achievements |
This year, the selective layer self-assembled monolayers have been designed and synthesized. This included the theoretical DFT (density functional theory) calculation to find the best candidate for the targeted ions. A prototype of the electric circuit board for nano-transistor measurement was designed and tested. Following this result, the compact circuit board for practical use has been designed.
For the high-pressure applications, we have implemented a 3D printed prototype of 8 cm diameter pressure tight housing, that is the final size of the demonstrator and confirmed that it can operate up to 100 bars. In addition, the first versions of pressure drop microfluidic chips aiming to convert the high pressure (100-300 bars) to 100 mbar have been designed. The microfluidic control of two mixed solutions using an innovative approach based on switches has been designed and implementation has been started.
We have published the papers for optimized signal to noise ratio in the nanotransistor sensors in liquid.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
We are happy so far with our progress, in the sense that a first generation of devices, electronics and high pressure interfacing has been fabricated, and we could nicely interact between U.Tokyo and JAMSTEC to prepare the setup compatible with deep-sea measurements.
We have optimized and published some signal to noise in nanodevices.We have made substantial progress towards the final prototype by testing the final size 3D printed ball at high pressure, we have automatized the measurement of sensors, almost finalized the high-pressure drop chip, and made substantial progress on the concentration monitoring chip.
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| Strategy for Future Research Activity |
We will finalize the study of rare earth elements interaction with these nano transistors, with the optimized selective layer molecules. At the same time, we will finalize the electronics part to test the prototype with all the microfluidics for pumping the seawater and calibration standards to the sensor. Finally, test the nano transistor under high pressure. Combine all the steps to make a prototype that will be tested under deep sea.
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Research Products
(2 results)
