Evidence map›Paper›PMID 29118413›Full record

ArticleScientific reports2017

Fabrication of Subnanometer-Precision Nanopores in Hexagonal Boron Nitride.

S Matt Gilbert, Gabriel Dunn, Amin Azizi, Thang Pham, Brian Shevitski, Edgar Dimitrov, Stanley Liu, Shaul Aloni, Alex Zettl

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In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

S Matt GilbertDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
Gabriel DunnDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
Amin AziziDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
Thang PhamDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
Brian ShevitskiDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
Edgar DimitrovDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
Stanley LiuDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.
Shaul AloniMolecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
Alex ZettlDepartment of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA. azettl@berkeley.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We demonstrate the fabrication of individual nanopores in hexagonal boron nitride (h-BN) with atomically precise control of the pore shape and size. Previous methods of pore production in other 2D materials typically create pores with irregular geometry and imprecise diameters. In contrast, other studies have shown that with careful control of electron irradiation, defects in h-BN grow with pristine zig-zag edges at quantized triangular sizes, but they have failed to demonstrate production and control of isolated defects. In this work, we combine these techniques to yield a method in which we can create individual size-quantized triangular nanopores through an h-BN sheet. The pores are created using the electron beam of a conventional transmission electron microscope; which can strip away multiple layers of h-BN exposing single-layer regions, introduce single vacancies, and preferentially grow vacancies only in the single-layer region. We further demonstrate how the geometry of these pores can be altered beyond triangular by changing beam conditions. Precisely size- and geometry-tuned nanopores could find application in molecular sensing, DNA sequencing, water desalination, and molecular separation.

Identifiers

PMID29118413
PMCPMC5678191

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.