Cited by 345Nanopore and Nanochannel Transport StudiesAdvanced biosensing and bioanalysis techniquesElectrochemical sensors and biosensors

Digitally encoded DNA nanostructures for multiplexed, single-molecule protein sensing with nanopores

Bell, Nicholas A. W., Keyser, Ulrich F.·2016·Nature Nanotechnology

Abstract

The simultaneous detection of a large number of different analytes is important in bionanotechnology research and in diagnostic applications. Nanopore sensing is an attractive method in this regard as the approach can be integrated into small, portable device architectures, and there is significant potential for detecting multiple sub-populations in a sample. Here, we show that highly multiplexed sensing of single molecules can be achieved with solid-state nanopores by using digitally encoded DNA nanostructures. Based on the principles of DNA origami, we designed a library of DNA nanostructures in which each member contains a unique barcode; each bit in the barcode is signalled by the presence or absence of multiple DNA dumbbell hairpins. We show that a 3-bit barcode can be assigned with 94% accuracy by electrophoretically driving the DNA structures through a solid-state nanopore. Select members of the library were then functionalized to detect a single, specific antibody through antigen presentation at designed positions on the DNA. This allows us to simultaneously detect four different antibodies of the same isotype at nanomolar concentration levels.

Integrity signals

Registry

Crossref · 10.1038/nnano.2016.50

Cites

44 of 44 references verified0 citation errors · 0 not checkable

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  • In nanopore reads of labeled DNA, each label is read in [10-1; 101] ms.

    “Conversely, in regards to nanopore reads of labeled DNA, each label is read in [10–1; 101] ms.”
  • Bell and Keyser used conical quartz nanopores with diameters of ∼14 nm for a 3-bit barcode that could be assigned with 94% accuracy.

    “The authors used conical quartz nanopores with diameters of ∼14 nm for a 3-bit barcode that could be assigned with 94% accuracy.”
  • Bell and Keyser fabricated DNA barcodes to capture proteins.

    “The use of nanopores to read out digital information encoded in DNA nanostructures was demonstrated by Bell and Keyser, who fabricated “DNA barcodes” to capture proteins.21”
  • Long DNA backbones as in DNA origami can organize DNA protrusions to produce three-dimensional DNA barcodes or hard drives that may be read using solid-state nanopores.

    “More recently, through the use of long DNA backbones as in DNA origami, the organization of DNA protrusions has been used to produce three-dimensional DNA barcodes21 or hard drives that may be read using solid-state nanopores.”

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Authors
Bell, N. A. W., & Keyser, U. F.
Affiliations
University of Cambridge (GB)
Corresponding author
  • Bell, Nicholas A. W.
  • Keyser, Ulrich F.
Venue
Nature Nanotechnology
Published
2016-04-04
Volume
11
Issue
7
Pages
645-651
ISSN
  • 1748-3387 (ISSN-L)
  • 1748-3395
OpenAlex
W2329887558
Cited by
345
References
45
Citations by year
2026: 28 · 2025: 37 · 2024: 24 · 2023: 38 · 2022: 39 · 2021: 30 · 2020: 34 · 2019: 39 · 2018: 40 · 2017: 25 · 2016: 10 · 2015: 1
FWCI
18.29
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Nanotechnology (publishedVersion)
  • PubMed (publishedVersion)
  • Apollo (University of Cambridge) (acceptedVersion)
Funders
Engineering and Physical Sciences Research Council
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Nanopore and Nanochannel Transport Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced biosensing and bioanalysis techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
Keywords
DNA nanostructures, DNA origami, solid-state nanopores, nanopore sensing, multiplexed protein detection, single-molecule detection, DNA barcodes, antibody detection, antigen presentation
MeSH terms
Binding Sites, DNA, Proteins, Nanotechnology, Nanostructures, Nanopores

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