Super-resolution flow measurements for nanochannels with electric double layer and anisotropic properties

2014 Fiscal Year Final Research Report

• Project/Area Number: 24686024
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Fluid engineering
• Research Institution: The University of Tokyo
• Principal Investigator: KAZOE Yutaka 東京大学, 工学(系)研究科(研究院), 助教 (20600919)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: マイクロ・ナノデバイス / 流体 / 流体工学

Outline of Final Research Achievements

Recently, a new fluid engineering field exploiting 10-100 nm space smaller than the light wavelength is in the initial stage. A spatially- and temporally resolved measurement method for this ultra small space is required to understand fluid flows where surface effects appear. The objective of this research project is to establish a measurement method for flow velocity distribution in nanochannels utilizing nanoparticles and evanescent wave light near the wall within 100 nm, considering dominant surface effect in nanospaces. A measurement system to accurately detect flowing nanoparticles was developed. By using this system, we could reveal unique behavior of nanoparticles in nanospaces such as nonuniform distribution of nanoparticles and anisotropically hindered nanoparticle diffusion. The knowledge obtained from this project is important for establishment of the measurement method.

Free Research Field

マイクロ・ナノ流体工学