A structure-permeability relationship of ultrathin nanoporous silicon membrane: A comparison with the nuclear envelope

Eunkyoung Kim; Hui Xiong; Christopher C. Striemer; David Z. Fang; Philippe M. Fauchet; James L. McGrath; Shigeru Amemiya

doi:10.1021/ja711258w

A structure-permeability relationship of ultrathin nanoporous silicon membrane: A comparison with the nuclear envelope

Eunkyoung Kim
, Hui Xiong
, Christopher C. Striemer
, David Z. Fang
, Philippe M. Fauchet
, James L. McGrath
, Shigeru Amemiya

Micron School of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

We report on a simple, quantitative relationship between structure and permeability of a novel ultrathin nanoporous membrane based on nanocrystalline silicon. Large permeability of the free-standing nanomembrane to Ru(NH₃)₆³⁺, O₂, or 1,1′-ferrocenedimethanol, which was able to be measured for the first time by employing scanning electrochemical microscopy, is proportional to the density (67 μm^-2) and average radius (5.6 nm) of nanopores. As solution electrolyte concentration decreases down to 0.01 M, the nanopores are selectively "closed" against Fe(CN)₆^4- because of electrostatic repulsion against negative charges at the pore wall. Permeability of the silicon nanomembrane was compared to permeability of the nuclear envelope to find that the channel diameter of the nuclear pore complex that perforates the nuclear envelope is much larger than the average diameter of the silicon nanopores and concomitantly a hypothetical diameter of 10 nm.

Original language	English
Pages (from-to)	4230-4231
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	130
Issue number	13
DOIs	https://doi.org/10.1021/ja711258w
State	Published - 2 Apr 2008

Keywords

Ferrocyanides/chemistry
Membranes, Artificial
Microscopy, Scanning Probe
Models, Biological
Nanostructures/chemistry
Nuclear Envelope/chemistry
Nuclear Pore/chemistry
Oxidation-Reduction
Particle Size
Permeability
Porosity
Ruthenium Compounds/chemistry
Silicon/chemistry
Structure-Activity Relationship
Surface Properties

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10.1021/ja711258w

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title = "A structure-permeability relationship of ultrathin nanoporous silicon membrane: A comparison with the nuclear envelope",

abstract = "We report on a simple, quantitative relationship between structure and permeability of a novel ultrathin nanoporous membrane based on nanocrystalline silicon. Large permeability of the free-standing nanomembrane to Ru(NH3)63+, O2, or 1,1′-ferrocenedimethanol, which was able to be measured for the first time by employing scanning electrochemical microscopy, is proportional to the density (67 μm-2) and average radius (5.6 nm) of nanopores. As solution electrolyte concentration decreases down to 0.01 M, the nanopores are selectively {"}closed{"} against Fe(CN)64- because of electrostatic repulsion against negative charges at the pore wall. Permeability of the silicon nanomembrane was compared to permeability of the nuclear envelope to find that the channel diameter of the nuclear pore complex that perforates the nuclear envelope is much larger than the average diameter of the silicon nanopores and concomitantly a hypothetical diameter of 10 nm.",

keywords = "Ferrocyanides/chemistry, Membranes, Artificial, Microscopy, Scanning Probe, Models, Biological, Nanostructures/chemistry, Nuclear Envelope/chemistry, Nuclear Pore/chemistry, Oxidation-Reduction, Particle Size, Permeability, Porosity, Ruthenium Compounds/chemistry, Silicon/chemistry, Structure-Activity Relationship, Surface Properties",

author = "Eunkyoung Kim and Hui Xiong and Striemer, \{Christopher C.\} and Fang, \{David Z.\} and Fauchet, \{Philippe M.\} and McGrath, \{James L.\} and Shigeru Amemiya",

year = "2008",

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doi = "10.1021/ja711258w",

language = "English",

volume = "130",

pages = "4230--4231",

number = "13",

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T1 - A structure-permeability relationship of ultrathin nanoporous silicon membrane

T2 - A comparison with the nuclear envelope

AU - Kim, Eunkyoung

AU - Xiong, Hui

AU - Striemer, Christopher C.

AU - Fang, David Z.

AU - Fauchet, Philippe M.

AU - McGrath, James L.

AU - Amemiya, Shigeru

PY - 2008/4/2

Y1 - 2008/4/2

N2 - We report on a simple, quantitative relationship between structure and permeability of a novel ultrathin nanoporous membrane based on nanocrystalline silicon. Large permeability of the free-standing nanomembrane to Ru(NH3)63+, O2, or 1,1′-ferrocenedimethanol, which was able to be measured for the first time by employing scanning electrochemical microscopy, is proportional to the density (67 μm-2) and average radius (5.6 nm) of nanopores. As solution electrolyte concentration decreases down to 0.01 M, the nanopores are selectively "closed" against Fe(CN)64- because of electrostatic repulsion against negative charges at the pore wall. Permeability of the silicon nanomembrane was compared to permeability of the nuclear envelope to find that the channel diameter of the nuclear pore complex that perforates the nuclear envelope is much larger than the average diameter of the silicon nanopores and concomitantly a hypothetical diameter of 10 nm.

AB - We report on a simple, quantitative relationship between structure and permeability of a novel ultrathin nanoporous membrane based on nanocrystalline silicon. Large permeability of the free-standing nanomembrane to Ru(NH3)63+, O2, or 1,1′-ferrocenedimethanol, which was able to be measured for the first time by employing scanning electrochemical microscopy, is proportional to the density (67 μm-2) and average radius (5.6 nm) of nanopores. As solution electrolyte concentration decreases down to 0.01 M, the nanopores are selectively "closed" against Fe(CN)64- because of electrostatic repulsion against negative charges at the pore wall. Permeability of the silicon nanomembrane was compared to permeability of the nuclear envelope to find that the channel diameter of the nuclear pore complex that perforates the nuclear envelope is much larger than the average diameter of the silicon nanopores and concomitantly a hypothetical diameter of 10 nm.

KW - Ferrocyanides/chemistry

KW - Membranes, Artificial

KW - Microscopy, Scanning Probe

KW - Models, Biological

KW - Nanostructures/chemistry

KW - Nuclear Envelope/chemistry

KW - Nuclear Pore/chemistry

KW - Oxidation-Reduction

KW - Particle Size

KW - Permeability

KW - Porosity

KW - Ruthenium Compounds/chemistry

KW - Silicon/chemistry

KW - Structure-Activity Relationship

KW - Surface Properties

UR - https://www.scopus.com/pages/publications/41549109843

U2 - 10.1021/ja711258w

DO - 10.1021/ja711258w

M3 - Article

C2 - 18324815

AN - SCOPUS:41549109843

SN - 0002-7863

VL - 130

SP - 4230

EP - 4231

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 13

ER -

A structure-permeability relationship of ultrathin nanoporous silicon membrane: A comparison with the nuclear envelope

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Keywords

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