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Industrial-scale separation of high-purity single-chirality single-wall carbon nanotubes for biological imaging

Author

Listed:
  • Yohei Yomogida

    (Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST))

  • Takeshi Tanaka

    (Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST))

  • Minfang Zhang

    (CNT-Application Research Center, National Institute of Advanced Industrial Science and Technology (AIST))

  • Masako Yudasaka

    (Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST))

  • Xiaojun Wei

    (Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST))

  • Hiromichi Kataura

    (Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST))

Abstract

Single-chirality, single-wall carbon nanotubes are desired due to their inherent physical properties and performance characteristics. Here, we demonstrate a chromatographic separation method based on a newly discovered chirality-selective affinity between carbon nanotubes and a gel containing a mixture of the surfactants. In this system, two different selectivities are found: chiral-angle selectivity and diameter selectivity. Since the chirality of nanotubes is determined by the chiral angle and diameter, combining these independent selectivities leads to high-resolution single-chirality separation with milligram-scale throughput and high purity. Furthermore, we present efficient vascular imaging of mice using separated single-chirality (9,4) nanotubes. Due to efficient absorption and emission, blood vessels can be recognized even with the use of ∼100-fold lower injected dose than the reported value for pristine nanotubes. Thus, 1 day of separation provides material for up to 15,000 imaging experiments, which is acceptable for industrial use.

Suggested Citation

  • Yohei Yomogida & Takeshi Tanaka & Minfang Zhang & Masako Yudasaka & Xiaojun Wei & Hiromichi Kataura, 2016. "Industrial-scale separation of high-purity single-chirality single-wall carbon nanotubes for biological imaging," Nature Communications, Nature, vol. 7(1), pages 1-8, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12056
    DOI: 10.1038/ncomms12056
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