Gated single-molecule transport in double-barreled nanopores
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Published version
Author(s)
Type
Journal Article
Abstract
Single-molecule methods have been rapidly developing with the appealing prospect of transforming conventional ensemble-averaged analytical techniques. However, challenges remain especially in improving detection sensitivity and controlling molecular transport. In this article, we present a direct method for the fabrication of analytical sensors that combine the advantages of nanopores and field-effect transistors for simultaneous label-free single-molecule detection and manipulation. We show that these hybrid sensors have perfectly aligned nanopores and field-effect transistor components making it possible to detect molecular events with up to near 100% synchronization. Furthermore, we show that the transport across the nanopore can be voltage-gated to switch on/off translocations in real time. Finally, surface functionalization of the gate electrode can also be used to fine tune transport properties enabling more active control over the translocation velocity and capture rates.
Date Issued
2018-11-07
Date Acceptance
2018-10-15
Citation
ACS Applied Materials and Interfaces, 2018, 10 (44), pp.38621-38629
ISSN
1944-8244
Publisher
American Chemical Society
Start Page
38621
End Page
38629
Journal / Book Title
ACS Applied Materials and Interfaces
Volume
10
Issue
44
Copyright Statement
© 2018 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Commission of the European Communities
Biotechnology and Biological Sciences Research Council (BBSRC)
Grant Number
EP/P011985/1
724300
BB/R022429/1
Subjects
Science & Technology
Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
single-molecule sensing
nanopore
voltage gating
functionalized gate
tunable nanoscale transport
nanofluidic field-effect transistor
SOLID-STATE NANOPORES
NANOFLUIDIC TRANSISTORS
GRAPHENE NANORIBBON
CURRENT SIGNALS
IONIC CURRENT
CELL ANALYSIS
DNA
TRANSLOCATION
SENSORS
NANOPROBES
0904 Chemical Engineering
0303 Macromolecular And Materials Chemistry
0306 Physical Chemistry (Incl. Structural)
Publication Status
Published
Date Publish Online
2018-10-15