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Nanopore analytics: sensing of single molecules

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TLDR
In nanopore analytics, individual molecules pass through a single nanopore giving rise to detectable temporary blockades in ionic pore current, which ranges from nucleic acids, peptides, proteins, and biomolecular complexes to organic polymers and small molecules.
Abstract
In nanopore analytics, individual molecules pass through a single nanopore giving rise to detectable temporary blockades in ionic pore current. Reflecting its simplicity, nanopore analytics has gained popularity and can be conducted with natural protein as well as man-made polymeric and inorganic pores. The spectrum of detectable analytes ranges from nucleic acids, peptides, proteins, and biomolecular complexes to organic polymers and small molecules. Apart from being an analytical tool, nanopores have developed into a general platform technology to investigate the biophysics, physicochemistry, and chemistry of individual molecules (critical review, 310 references).

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Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems

Andrea C. Ferrari, +68 more
- 04 Mar 2015 - 
TL;DR: An overview of the key aspects of graphene and related materials, ranging from fundamental research challenges to a variety of applications in a large number of sectors, highlighting the steps necessary to take GRMs from a state of raw potential to a point where they might revolutionize multiple industries are provided.
Journal ArticleDOI

Rapid electronic detection of probe-specific microRNAs using thin nanopore sensors

TL;DR: A platform for the rapid electronic detection of probe-hybridized microRNAs from cellular RNA is presented, in which a target microRNA is first hybridized to a probe and enriched through binding to the viral protein p19.
Journal ArticleDOI

Synthetic Lipid Membrane Channels Formed by Designed DNA Nanostructures

TL;DR: In single-channel electrophysiological measurements, the authors found similarities to the response of natural ion channels, such as conductances on the order of 1 nanosiemens and channel gating, and show that the synthetic channels can be used to discriminate single DNA molecules.
Journal ArticleDOI

Nanopores: A journey towards DNA sequencing

TL;DR: Past and current studies related to nucleic acid biophysics are surveyed, and will hopefully provoke a discussion of immediate and future prospects for the field.
Journal ArticleDOI

Controlling protein translocation through nanopores with bio-inspired fluid walls

TL;DR: It is shown that coating nanopores with fluid bilayer lipids allows the pore diameters to be fine-tuned in sub-nanometre increments, and incorporation of mobile ligands in the lipid conferred specificity and slowed down the translocation of targeted proteins sufficiently to time-resolve translocation events of individual proteins.
References
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Journal ArticleDOI

Direct introduction of single protein channels and pores into lipid bilayers.

TL;DR: A mechanical method for inserting single pores and channels into lipid bilayers using a hand-operated hydrogel probe coated with a layer of proteins that retains electrical properties that are the same as those of proteins inserted from solution.
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Synthetic pores with reactive signal amplifiers as artificial tongues

TL;DR: Synthetic pores are presented that can sense flavours in food and in addition make them visibly detectable, and reactive amplifiers that covalently capture elusive analytes after enzymatic signal generation and drag them into synthetic pores for blockage are exploited.
Journal ArticleDOI

Electromechanical Unzipping of Individual DNA Molecules Using Synthetic Sub-2 nm Pores

TL;DR: Using sub-2 nm solid-state nanopores, it is shown for the first time that the unzipping kinetics of individual DNA duplexes can be probed by analyzing the dwell-time distributions, a crucial step toward sequence variability detection and single-molecule nanopore sequencing technology, which rely on parallel detection from nanopore arrays.
Journal ArticleDOI

Ionic conductivity of the aqueous layer separating a lipid bilayer membrane and a glass support.

TL;DR: The results indicate that the concentration and mobility of charge carriers in the aqueous layer between the glass support and bilayer are largely determined by the local structure of the glass/water/bilayer interface.
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