Vibration modeling of carbon-nanotube-based biosensors incorporating thermal and nonlocal effects

Kaifa Wang, Baolin Wang

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The vibration behavior of a bridged single walled carbon nanotube with a bio-mass adsorbed at various positions subjected to temperature change is investigated. The frequency equation of the sensor is derived analytically based on nonlocal Euler-Bernoulli beam theory. The relationship between the vibration frequency, the temperature change, the nonlocal parameter, the attached bio-mass and its location was obtained. Results without temperature change are compared with available results of analytical and molecular mechanics. It is found that the influence of thermal effect on the frequency and sensitivity of the biosensor is significant if its length-to-diameter ratio is large. On the other hand, the effect of nonlocal parameter on the frequency and sensitivity of the biosensor increases if its length-to-diameter ratio decreases.
Original languageEnglish
Pages (from-to)1405-1414
Number of pages10
JournalJournal of Vibration and Control
Volume22
Issue number5
DOIs
Publication statusPublished - 2016

Keywords

  • biosensors
  • carbon nanotube
  • vibration

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