2020 Fiscal Year Annual Research Report
Development of Alternating Current Resistive Pulse Sensing Using Transport-Induced-Charge Theory
| Project/Area Number |
19K15600
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| Research Institution | The University of Tokyo |
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Principal Investigator |
徐 偉倫 東京大学, 大学院工学系研究科(工学部), 講師 (50771549)
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Keywords | Alternating current / Electrokinetic pumping / Nanofluidics / Nanopore / Resistive pulse sensing |
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| Outline of Annual Research Achievements |
In the second year of this project, we summarized both experimental and theoretical analyses for transport-induced-charge electroosmotic flow in nanopores. We have developed a standard fabrication process for sub-100 nm pore arrays used in our nanofluidic system for ultra-low flow rate measurements (picoliter/second). A computational model considering force, mass and energy conservation equations has been constructed to capture the experimental flow behavior. The research outcome has been published in a peer-reviewed journal (Micromachines). The paper was selected as a feature paper (Editor's choice) in a special issue of Advances in Nanofluidics. We successfully identified that the presence of Joule heating enhances electroosmotic flow in pores due to transport-induced-charge phenomena.
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Research Products
(9 results)
