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Lee, Chang Young
Carbon Nanomaterials Lab
Research Interests
  • Carbon nanomaterials, gas sensors, neuroanalytical chemistry, biomimetic nanosystems

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Carbon Nanotubes as Molecular Conduits: Advances and Challenges for Transport through Isolated Sub-2 nm Pores

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Title
Carbon Nanotubes as Molecular Conduits: Advances and Challenges for Transport through Isolated Sub-2 nm Pores
Other Titles
Carbon Nanotubes as Molecular Conduits: Advances and Challenges for Transport through Isolated Sub-2 nm Pores
Author
Ulissi, Zachary W.Shimizu, StevenLee, Chang YoungStrano, Michael S.
Keywords
NANOMETER-DIAMETER PORE; SOLID-STATE NANOPORES; DNA; TRANSLOCATION; CHANNEL; NANOSCALE
Issue Date
201111
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.2, no.22, pp.2892 - 2896
Abstract
Devices that explore transport through the narrowest diameter single-walled carbon nanotubes (SWCNTs) have only recently been enabled by advances in SWCNT synthesis methods and experimental design. These devices hold promise as next-generation sensors, platforms for water desalination, proton conduction, energy storage, and to directly probe molecular transport under significant geometric confinement In this Perspective, we first describe this new generation of devices and then highlight two important concepts that have emerged from recent work. First, the most reliable way to identify transport is to borrow techniques from the biological and silicon nanopore communities and analyze the discrete stochastic events caused by molecules blocking the SWCNT channel. Second, it is nearly impossible to isolate mass transport within a SWCNT without a substantial suppression of leakage transport and around the SWCNT. To highlight this, we discuss experiments showing water transport along the exterior of SWCNTs. Finally, we describe some further innovations to these devices in the near future that will allow for a more complete understanding of confined molecular transport
URI
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DOI
http://dx.doi.org/10.1021/jz201136c
ISSN
1948-7185
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