In situ observation of micrometer-scaled peristaltic pumping

Abstract

For realizing precise control of nanoscaled or micrometer-scaled peristaltic pumping, it is necessary to reveal its detailed behaviors by in situ electron microscopy observations. This study provides in situ observation of micrometer-scaled peristaltic pumping. A carbon microtube with a Ga filler was manipulated using two microprobes in a scanning electron microscope. When the tube was pinched by the probes, the filler was pushed toward the end of the tube. Upon further pinching, the filler was divided into two portions with a gap at the pinching position. Our observation suggests that when using carbon nanotubes, a material known for its excellent mechanical durability, manipulators should be operated not to break the nanotubes.

Keywords:

• Carbon microtube
• Ga filler
• peristaltic pumping

Disclosure statement

The authors report there are no competing interests to declare.