Three-Dimensional Superlocalization Imaging of Gliding Mycoplasma mobile by Extraordinary Light Transmission through Arrayed Nanoholes

Wonju Lee, Yoshiaki Kinosita, Youngjin Oh, Nagisa Mikami, Heejin Yang, Makoto Miyata, Takayuki Nishizaka, Donghyun Kim

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In this paper, we describe super-resolved sampling of live bacteria based on extraordinary optical transmission (EOT) of light. EOT is produced by surface plasmon confinement and coupling with nanostructures. Bacterial fluorescence is excited by the localized fields for subdiffraction-limited sampling. The concept was applied to elucidating bacterial dynamics of gliding Mycoplasma mobile (M. mobile). The results analyzed with multiple M. mobile bacteria show individual characters and reveal that M. mobile undergoes a significant axial variation at 94 nm. The sampling error of the method is estimated to be much smaller than 1/10 of the diffraction limit both in the lateral and depth axis. The method provides a powerful tool for investigation of biomolecular dynamics at subwavelength precision.

Original languageEnglish
Pages (from-to)10896-10908
Number of pages13
JournalACS Nano
Volume9
Issue number11
DOIs
Publication statusPublished - 2015 Nov 24

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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