Pause of the target gliding microtuble on the virtual cathode

Area of Science:

• Biophysics
• Nanotechnology
• Cell Biology

Background:

• Microtubule-kinesin systems function as motor proteins in cellular processes like motility and transport.
• In vitro assays highlight motor proteins as crucial for efficient nano-transportation.
• Molecular functions are sensitive to ionic conditions and electric fields due to molecular charges.

Purpose of the Study:

• To investigate the transient response of gliding microtubules on a virtual cathode.
• To demonstrate the regulation of microtubule gliding motion using a localized electric field.
• To explore the potential of virtual cathode technology for controlling nanoscale transport.

Main Methods:

• Generation of a virtual cathode on a SiN display surface using a low-energy electron beam.
• Application of the virtual cathode to locally induce electrochemical reactions and electric fields.
• Observation and manipulation of gliding microtubule motion in response to the virtual cathode.

Main Results:

• A virtual cathode was successfully generated on a SiN display surface.
• The virtual cathode locally induced electrochemical reactions and electric fields.
• Gliding microtubules were temporarily stopped by applying the virtual cathode.
• The paused motion was reversible, with gliding resuming upon deactivation of the virtual cathode.

Conclusions:

• Virtual cathode technology can precisely control the motion of individual gliding microtubules.
• This method offers a non-invasive way to temporarily halt and restart microtubule transport.
• The findings suggest potential applications in advanced nano-transportation systems and cellular manipulation.