Method of fixing rail molecule and nano transport device

A nano-transport device comprising:

• a base,
• a channel-forming member attached onto the base,
• access channels located on opposite sides of the channel-forming member,
• a plurality of orientation channels each of which is formed in the channel-forming member to connect the access channels and has a width of a cytoskeletal filament, the orientation channels extending parallel with one another between the opposite sides of the channel-forming member,
• a plurality of cytoskeletal filaments each of which has polarity and is fixed in one of the orientation channels by a cytoskeletal filament fixing method so that they are aligned in parallel with one another, and are oriented in the same direction, and
• a biomolecular motor which moves on the cytoskeletal filament in a direction corresponding to the polarity of the cytoskeletal filament, wherein:
• the cytoskeletal filament fixing method includes the following steps:
• (i) depositing a biomolecular motor on a base,
• (ii) moving a cytoskeletal filament by means of the biomolecular motor, and
• (iii) inactivating the biomolecular motor by irradiating the biomolecular motor with light having a predetermined wavelength when the cytoskeletal filament reaches a predetermined position, to thereby fix the cytoskeletal filament so that it is oriented in a predetermined direction, and
• the biomolecular motor scan transport a substance along the cytoskeletal filament.