Method for manufacturing gold microtubes

Abstract

To provide a method of manufacturing gold micro-tubes allowing for easily manufacturing long gold micro-tubes.SOLUTION: A method of manufacturing gold micro-tubes includes: synthesizing gold nano-particles by reducing, in a solvent containing gold ions, the gold ions within a reactor; and allowing the solvent containing the gold nano-particles thus synthesized to contact a wall surface having a contact angle different from a contact angle of a wall surface in contact with the solvent within the reactor, thereby manufacturing gold micro-tubes.SELECTED DRAWING: Figure 12

Claims

1. A method for producing gold microtubes, comprising: synthesizing gold nanoparticles by reducing gold ions in a solvent containing gold ions in a reaction vessel; and bringing the solvent containing the synthesized gold nanoparticles into contact with a wall surface of the reaction vessel having a different contact angle than the wall surface in contact with the solvent.

2. A method for producing gold microtubes according to claim 1, characterized in that a solvent containing synthesized gold nanoparticles is brought into contact with a wall surface of the reaction vessel having a contact angle greater than the contact angle of the wall surface in contact with the solvent.

3. A method for producing gold microtubes according to claim 1 or 2, characterized in that the difference between the contact angle of the wall surface of the reaction vessel that is in contact with the solvent and the contact angle of the wall surface having a different contact angle is 40 degrees or more.

4. A method for producing gold microtubes according to any one of claims 1 to 3, characterized in that a gold salt is dissolved in a solvent to prepare a solvent containing gold ions, and a carboxylic acid or carboxylate is added to the solvent containing gold ions to reduce the gold ions and synthesize gold nanoparticles.

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