Determination of Young's modulus of individual electrospun nanofibers by microcantilever vibration method

Philip A. Yuya, Yongkui Wen, Joseph A. Turner, Yuris A. Dzenis, Zheng Li

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Abstract

The authors report a technique for measuring Young's modulus of a single electrospun nanofiber using the vibrations of two microcantilevers coupled with the nanofiber. The modulus is calculated from the resonant frequency shift resulting from the nanofiber. Polyacrylonitrile nanofibers (200 nm diameter) were collected during electrospinning and wrapped on two similar microcantilevers causing a shift in first resonance from 10.0 to 19.4 kHz. Finite element analysis was used to analyze the frequency shift using images from a scanning electron microscope giving a modulus of the as-spun polyacrylonitrile nanofiber of 26.8 GPa.

Original languageEnglish (US)
Article number111909
JournalApplied Physics Letters
Volume90
Issue number11
DOIs
Publication statusPublished - Mar 23 2007

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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