講演・口頭発表等

2017年

LINEAR ZERO MODE WAVEGUIDES FOR THE STUDY OF CHEMO-MECHANICAL COUPLING MECHANISM OF KINESIN

30TH IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS 2017)
  • Kazuya Fujimoto
  • ,
  • Yuki Morita
  • ,
  • Ryota Iino
  • ,
  • Michio Tomishige
  • ,
  • Hirofumi Shintaku
  • ,
  • Hidetoshi Kotera
  • ,
  • Ryuji Yokokawa

開催年月日
2017年 - 2017年
記述言語
英語
会議種別
主催者
IEEE

We developed Linear Zero Mode Waveguides (LZMWs) for simultaneous observation of kinesin displacement and ATP hydrolysis cycle under higher concentration of fluorescently labeled ATP than that used in conventional total internal reflection microscopy (TIRFM). Single-molecule fluorescent microscopy is a promising method to analyze correlation between the mechanical displacement and hydrolysis of ATP by a kinesin molecule. However, the concentration of fluorescently labeled ATP was limited up to 10 nM in TIRFM, thus available data from experiment was limited. Proposed method enables to use ten times higher concentration of fluorescently labeled ATP by confining excitation lights in LZMWs, which are nano-slits with 100 nm in width.