Translocation of Single-Wall Carbon Nanotubes Through Solid-State Nanopores

作者：Hall Adam R^*; Keegstra Johannes M; Duch Matthew C; Hersam Mark C; Dekker Cees

来源：Nano Letters, 2011, 11(6): 2446-2450.

DOI：10.1021/nl200873w

• Solid-state nanopores
• SWNT
• nanotube
• translocation
• bundling

We report the translocation of individual single-wall carbon nanotubes (SWNTs) through solid-state nanopores. Single-strand DNA oligomers are used to both disperse the SWNTs in aqueous solution and to provide them with a net charge, allowing them to be driven through the nanopores by an applied electric field. The resulting temporary interruptions in the measured nanopore conductance provide quantitative information on the diameter and length of the translocated nanotubes at a single-molecule level. Furthermore, we demonstrate that the technique can be utilized to monitor bundling of SWNT in solution by using complementary nucleotides to induce tube-tube agglomeration.

• 出版日期2011-6
• 单位西北大学