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Jang, Jaesung
Sensors & Aerosols Lab
Research Interests
  • Bio-MEMS
  • Bioaerosols
  • Sensor
  • Aerosol Cleaning
  • Fluid Mechanics at microscales

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Simultaneous position and mass determination of a nanoscale-thickness cantilever sensor in viscous fluids

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Title
Simultaneous position and mass determination of a nanoscale-thickness cantilever sensor in viscous fluids
Author
Hong, SeongkyeolKim, DeokmanPark, JunhongJang, Jaesung
Issue Date
2015-02
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.106, no.6, pp.063106
Abstract
We report simultaneous determination of the mass and position of micro-beads attached to a nanoscale-thickness cantilever sensor by analyzing wave propagations along the cantilever while taking into account viscous and inertial loading due to a surrounding fluid. The fluid-structure interaction was identified by measuring the change in the wavenumber under different fluid conditions. The predicted positions and masses agreed with actual measurements. Even at large mass ratios (6%-21%) of the beads to the cantilever, this wave approach enabled accurate determination of the mass and position, demonstrating the potential for highly accurate cantilever sensing of particle-based bio-analytes such as bacteria. © 2015 AIP Publishing LLC
URI
https://scholarworks.unist.ac.kr/handle/201301/11102
URL
http://scitation.aip.org/content/aip/journal/apl/106/6/10.1063/1.4906613
DOI
10.1063/1.4906613
ISSN
0003-6951
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