Mechanism of Enhanced Dispersion of Single-Walled Carbon Nanotubes with Proteins by Alcohols and Chaotropes

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概要

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• Protein–single-walled carbon nanotube (SWNT) conjugates have attracted remarkable attention for their application to biotechnology. However, low dispersion of the conjugates in aqueous solvents attributable to the strong interaction between sidewalls of SWNTs has limited their application. We previously reported that alcohols enhance the dispersion of single-walled carbon nanotubes with protein, but the mechanism has not been clarified. Herein we suggest a mechanism of the dispersion enhancement through a comparison of the effect of alcohols and chaotropes on the hydrophobic interaction of SWNTs, which shows that the adjuvants play an important role in the dispersion kinetics. The dispersion technique based on the mechanism provides us opportunities to develop a new field of applications and investigate physical properties of SWNTs.

• 2010-06-25

著者

• Akasaka T

  Center For Tsukuba Advanced Research Alliance University Of Tsukuba

• AKASAKA Takeshi

  Center for Tsukuba Advanced Research Alliance, University of Tsukuba

• Akasaka Takeshi

  Center For Tsukuba Advanced Research Alliance

• 赤阪 健

  筑波大学化学系

• Maeda Yutaka

  Department Of Applied Biological Science Tokyo University Of Science

• Hirano Atsushi

  Institute Applied Physics University Of Tsukuba

• Akasaka Takeshi

  Department Of Chemistry University Of Tsukuba

• Takeshi Akasaka

  Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan

• Atsushi Hirano

  Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan

• Kentaro Shiraki

  Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan

• 赤阪 健

  Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba

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