DNA-mediated assembly of boron nitride nanotubes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Yoshio Bando
  • Wenlong Wang
  • Chengchun Tang
  • H. Kuwahara
  • Dmitri Golberg

Detail(s)

Original languageEnglish
Pages (from-to)1581-1585
Journal / PublicationChemistry - An Asian Journal
Volume2
Issue number12
Publication statusPublished - 2007
Externally publishedYes

Abstract

The dispersion of nanomaterials in solutions is of primary importance for the improvement of their processability, but it also provides a way to investigate phase behavior and to assemble nanostructures in solvents. Several methods based on different interactions have been developed to disperse carbon nanotubes, whereas little development has been made for their boron nitride nanotube (BNNT) counterparts. A direct way to obtain long-range ordering may be through spontaneous nematic ordering in solutions at sufficiently high concentrations of the nanomaterial fraction. Lyotropic nematics have been observed in various organic and inorganic systems. In this work, the strong interactions between DNA and BNNTs were exploited to fabricate high-concentration BNNTs aqueous solutions by a simple method, and then, for the first time, nematic ordered ensembles of BNNTs were obtained by filtration. It is proposed that a localized liquid-crystal phase appears during filtration, as the ordering trend for the BNNTs was found to depend on the concentration of the aqueous solutions of the BNNTs. Moreover, BNNTs were successfully localized on a predefined area by using a thiolmodified DNA-BNNT hybrid. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Research Area(s)

  • Boron nanotubes, Dispersions, DNA, Nanomaterials, Nematic phases

Citation Format(s)

DNA-mediated assembly of boron nitride nanotubes. / Zhi, Chunyi; Bando, Yoshio; Wang, Wenlong; Tang, Chengchun; Kuwahara, H.; Golberg, Dmitri.

In: Chemistry - An Asian Journal, Vol. 2, No. 12, 2007, p. 1581-1585.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review