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Science, volume 358, issue 6362, pages 511-513

Size effect in ion transport through angstrom-scale slits

Esfandiar Ali ¹

Radha B. ^{1, 2}

Wang Fengchao ^{1, 3}

Yang Q ^{2, 4}

Hu Sheng ²

Garaj S. ^{5, 6, 7}

Nair R R ^{2, 8}

Geim A. K. ^{1, 2}

Gopinadhan Kalon ¹

Hide authors affiliations Show authors affiliations: 8 affiliations

School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK. |

National Graphene Institute, University of Manchester, Manchester M13 9PL, UK. |

Chinese Academy of Sciences Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230027, China. |

⁴

Chinese Academy of Sciences Key Laboratory of Advanced Technologies of Materials, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China. |

⁵

Department of Physics, National University of Singapore, 117542 Singapore. |

⁶

Centre for Advanced 2D Materials, National University of Singapore, 117546 Singapore. |

⁷

Department of Biomedical Engineering, National University of Singapore, 117575 Singapore. |

⁸

School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK. |

Publication type: Journal Article

Publication date: 2017-10-27

American Association for the Advancement of Science (AAAS)

Journal: Science

Quartile SCImago

Quartile WOS

Impact factor: 56.9

ISSN: 00368075, 10959203

DOI: 10.1126/science.aan5275

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Multidisciplinary

Abstract

Squeezing through a hole Transport of an ion is usually directly related to its hydrated radius and assumed to be nonflexible. Either a hydrated ion fits through an aperture or it does not, and shape should play a dominant role rather than charge. Esfandiar et al. created nanofluidic devices by stacking structured bulk materials, including graphite, boron nitride, and molybdenum disulfide. They investigated the transport of ions in aqueous solutions through the nanochannels in the devices. Unexpectedly, they observed different behavior for ions of similar hydrated size but opposite charge. Science, this issue p. 511 Narrow channels allow ions with large diameters to squeeze through, but with reduced mobility and anion-cation asymmetry. In the field of nanofluidics, it has been an ultimate but seemingly distant goal to controllably fabricate capillaries with dimensions approaching the size of small ions and water molecules. We report ion transport through ultimately narrow slits that are fabricated by effectively removing a single atomic plane from a bulk crystal. The atomically flat angstrom-scale slits exhibit little surface charge, allowing elucidation of the role of steric effects. We find that ions with hydrated diameters larger than the slit size can still permeate through, albeit with reduced mobility. The confinement also leads to a notable asymmetry between anions and cations of the same diameter. Our results provide a platform for studying the effects of angstrom-scale confinement, which is important for the development of nanofluidics, molecular separation, and other nanoscale technologies.

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Citations by journals

	5 10 15 20 25
ACS Nano	ACS Nano, 23, 5.57% ACS Nano 23 publications, 5.57%
Nature Communications	Nature Communications, 22, 5.33% Nature Communications 22 publications, 5.33%
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Journal of Physical Chemistry C	Journal of Physical Chemistry C, 14, 3.39% Journal of Physical Chemistry C 14 publications, 3.39%
Advanced Materials	Advanced Materials, 12, 2.91% Advanced Materials 12 publications, 2.91%
ACS applied materials & interfaces	ACS applied materials & interfaces, 12, 2.91% ACS applied materials & interfaces 12 publications, 2.91%
Journal of Physical Chemistry Letters	Journal of Physical Chemistry Letters, 11, 2.66% Journal of Physical Chemistry Letters 11 publications, 2.66%
Journal of Chemical Physics	Journal of Chemical Physics, 10, 2.42% Journal of Chemical Physics 10 publications, 2.42%
Physical Chemistry Chemical Physics	Physical Chemistry Chemical Physics, 10, 2.42% Physical Chemistry Chemical Physics 10 publications, 2.42%
Angewandte Chemie - International Edition	Angewandte Chemie - International Edition, 9, 2.18% Angewandte Chemie - International Edition 9 publications, 2.18%
Angewandte Chemie	Angewandte Chemie, 9, 2.18% Angewandte Chemie 9 publications, 2.18%
Advanced Functional Materials	Advanced Functional Materials, 8, 1.94% Advanced Functional Materials 8 publications, 1.94%
Desalination	Desalination, 8, 1.94% Desalination 8 publications, 1.94%
Nano Letters	Nano Letters, 8, 1.94% Nano Letters 8 publications, 1.94%
Science	Science, 8, 1.94% Science 8 publications, 1.94%
Nature Nanotechnology	Nature Nanotechnology, 7, 1.69% Nature Nanotechnology 7 publications, 1.69%
Nanoscale	Nanoscale, 6, 1.45% Nanoscale 6 publications, 1.45%
Journal of Materials Chemistry A	Journal of Materials Chemistry A, 6, 1.45% Journal of Materials Chemistry A 6 publications, 1.45%
Advanced Materials Technologies	Advanced Materials Technologies, 5, 1.21% Advanced Materials Technologies 5 publications, 1.21%
Carbon	Carbon, 5, 1.21% Carbon 5 publications, 1.21%
Nano Research	Nano Research, 4, 0.97% Nano Research 4 publications, 0.97%
Nature Reviews Materials	Nature Reviews Materials, 4, 0.97% Nature Reviews Materials 4 publications, 0.97%
Nature Materials	Nature Materials, 4, 0.97% Nature Materials 4 publications, 0.97%
Nature	Nature, 4, 0.97% Nature 4 publications, 0.97%
Journal of Physical Chemistry B	Journal of Physical Chemistry B, 4, 0.97% Journal of Physical Chemistry B 4 publications, 0.97%
Langmuir	Langmuir, 4, 0.97% Langmuir 4 publications, 0.97%
Chemical Society Reviews	Chemical Society Reviews, 4, 0.97% Chemical Society Reviews 4 publications, 0.97%
Physical Review E	Physical Review E, 3, 0.73% Physical Review E 3 publications, 0.73%
Chemical Reviews	Chemical Reviews, 3, 0.73% Chemical Reviews 3 publications, 0.73%
	5 10 15 20 25

Citations by publishers

	20 40 60 80 100
American Chemical Society (ACS)	American Chemical Society (ACS), 100, 24.21% American Chemical Society (ACS) 100 publications, 24.21%
Elsevier	Elsevier, 80, 19.37% Elsevier 80 publications, 19.37%
Wiley	Wiley, 66, 15.98% Wiley 66 publications, 15.98%
Springer Nature	Springer Nature, 57, 13.8% Springer Nature 57 publications, 13.8%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 36, 8.72% Royal Society of Chemistry (RSC) 36 publications, 8.72%
American Institute of Physics (AIP)	American Institute of Physics (AIP), 12, 2.91% American Institute of Physics (AIP) 12 publications, 2.91%
IOP Publishing	IOP Publishing, 12, 2.91% IOP Publishing 12 publications, 2.91%
American Association for the Advancement of Science (AAAS)	American Association for the Advancement of Science (AAAS), 10, 2.42% American Association for the Advancement of Science (AAAS) 10 publications, 2.42%
American Physical Society (APS)	American Physical Society (APS), 9, 2.18% American Physical Society (APS) 9 publications, 2.18%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 9, 2.18% Multidisciplinary Digital Publishing Institute (MDPI) 9 publications, 2.18%
Oxford University Press	Oxford University Press, 4, 0.97% Oxford University Press 4 publications, 0.97%
Chemical Industry Press	Chemical Industry Press, 2, 0.48% Chemical Industry Press 2 publications, 0.48%
Proceedings of the National Academy of Sciences (PNAS)	Proceedings of the National Academy of Sciences (PNAS), 2, 0.48% Proceedings of the National Academy of Sciences (PNAS) 2 publications, 0.48%
Copernicus	Copernicus, 1, 0.24% Copernicus 1 publication, 0.24%
Science in China Press	Science in China Press, 1, 0.24% Science in China Press 1 publication, 0.24%
Annual Reviews	Annual Reviews, 1, 0.24% Annual Reviews 1 publication, 0.24%
Chinese Physical Society	Chinese Physical Society, 1, 0.24% Chinese Physical Society 1 publication, 0.24%
Taylor & Francis	Taylor & Francis, 1, 0.24% Taylor & Francis 1 publication, 0.24%
Frontiers Media S.A.	Frontiers Media S.A., 1, 0.24% Frontiers Media S.A. 1 publication, 0.24%
	20 40 60 80 100

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Esfandiar A. et al. Size effect in ion transport through angstrom-scale slits // Science. 2017. Vol. 358. No. 6362. pp. 511-513.

GOST all authors (up to 50) Copy

Esfandiar A., Radha B., Wang F., Yang Q., Hu S., Garaj S., Nair R. R., Geim A. K., Gopinadhan K. Size effect in ion transport through angstrom-scale slits // Science. 2017. Vol. 358. No. 6362. pp. 511-513.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1126/science.aan5275

UR - https://doi.org/10.1126%2Fscience.aan5275

TI - Size effect in ion transport through angstrom-scale slits

T2 - Science

AU - Esfandiar, Ali

AU - Radha, B.

AU - Wang, Fengchao

AU - Yang, Q

AU - Hu, Sheng

AU - Garaj, S.

AU - Nair, R R

AU - Geim, A. K.

AU - Gopinadhan, Kalon

PY - 2017

DA - 2017/10/27 00:00:00

PB - American Association for the Advancement of Science (AAAS)

SP - 511-513

IS - 6362

VL - 358

SN - 0036-8075

SN - 1095-9203

ER -

BibTex |

Cite this

BibTex Copy

@article{2017_Esfandiar,

author = {Ali Esfandiar and B. Radha and Fengchao Wang and Q Yang and Sheng Hu and S. Garaj and R R Nair and A. K. Geim and Kalon Gopinadhan},

title = {Size effect in ion transport through angstrom-scale slits},

journal = {Science},

year = {2017},

volume = {358},

publisher = {American Association for the Advancement of Science (AAAS)},

month = {oct},

url = {https://doi.org/10.1126%2Fscience.aan5275},

number = {6362},

pages = {511--513},

doi = {10.1126/science.aan5275}

}

MLA

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Esfandiar, Ali, et al. “Size effect in ion transport through angstrom-scale slits.” Science, vol. 358, no. 6362, Oct. 2017, pp. 511-513. https://doi.org/10.1126%2Fscience.aan5275.

Found error?

Publisher

American Association for the Advancement of Science (AAAS)

Journal

Science

Quartile SCImago

Quartile WOS

Impact factor

56.9

ISSN

00368075 (Print)
10959203 (Electronic)