Unique selectivity trends of highly permeable PAP[5] water channel membranes

Woochul Song, Yue Xiao Shen, Chao Lang, Prantik Saha, Iryna V. Zenyuk, Robert John Hickey, III, Manish Kumar

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Artificial water channels are a practical alternative to biological water channels for achieving exceptional water permeability and selectivity in a stable and scalable architecture. However, channel-based membrane fabrication faces critical barriers such as: (1) increasing pore density to achieve measurable gains in permeability while maintaining selectivity, and (2) scale-up to practical membrane sizes for applications. Recently, we proposed a technique to prepare channel-based membranes using peptide-appended pillar[5]arene (PAP[5]) artificial water channels, addressing the above challenges. These multi-layered PAP[5] membranes (ML-PAP[5]) showed significantly improved water permeability compared to commercial membranes with similar molecular weight cut-offs. However, due to the distinctive pore structure of water channels and the layer-by-layer architecture of the membrane, the separation behavior is unique and was still not fully understood. In this paper, two unique selectivity trends of ML-PAP[5] membranes are discussed from the perspectives of channel geometry, ion exclusion, and linear molecule transport.

Original languageEnglish (US)
Pages (from-to)193-204
Number of pages12
JournalFaraday Discussions
Volume209
DOIs
StatePublished - Jan 1 2018

Fingerprint

Aquaporins
peptides
selectivity
membranes
Membranes
trends
Peptides
water
permeability
porosity
pillar(5)arene
Water
Pore structure
exclusion
Ion Channels
molecular weight
Molecular weight
Fabrication
fabrication
Molecules

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Cite this

Song, Woochul ; Shen, Yue Xiao ; Lang, Chao ; Saha, Prantik ; Zenyuk, Iryna V. ; Hickey, III, Robert John ; Kumar, Manish. / Unique selectivity trends of highly permeable PAP[5] water channel membranes. In: Faraday Discussions. 2018 ; Vol. 209. pp. 193-204.
@article{6307f981825445afb0ee89aff0846e99,
title = "Unique selectivity trends of highly permeable PAP[5] water channel membranes",
abstract = "Artificial water channels are a practical alternative to biological water channels for achieving exceptional water permeability and selectivity in a stable and scalable architecture. However, channel-based membrane fabrication faces critical barriers such as: (1) increasing pore density to achieve measurable gains in permeability while maintaining selectivity, and (2) scale-up to practical membrane sizes for applications. Recently, we proposed a technique to prepare channel-based membranes using peptide-appended pillar[5]arene (PAP[5]) artificial water channels, addressing the above challenges. These multi-layered PAP[5] membranes (ML-PAP[5]) showed significantly improved water permeability compared to commercial membranes with similar molecular weight cut-offs. However, due to the distinctive pore structure of water channels and the layer-by-layer architecture of the membrane, the separation behavior is unique and was still not fully understood. In this paper, two unique selectivity trends of ML-PAP[5] membranes are discussed from the perspectives of channel geometry, ion exclusion, and linear molecule transport.",
author = "Woochul Song and Shen, {Yue Xiao} and Chao Lang and Prantik Saha and Zenyuk, {Iryna V.} and {Hickey, III}, {Robert John} and Manish Kumar",
year = "2018",
month = "1",
day = "1",
doi = "10.1039/c8fd00043c",
language = "English (US)",
volume = "209",
pages = "193--204",
journal = "Faraday Discussions",
issn = "1364-5498",
publisher = "Royal Society of Chemistry",

}

Unique selectivity trends of highly permeable PAP[5] water channel membranes. / Song, Woochul; Shen, Yue Xiao; Lang, Chao; Saha, Prantik; Zenyuk, Iryna V.; Hickey, III, Robert John; Kumar, Manish.

In: Faraday Discussions, Vol. 209, 01.01.2018, p. 193-204.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Unique selectivity trends of highly permeable PAP[5] water channel membranes

AU - Song, Woochul

AU - Shen, Yue Xiao

AU - Lang, Chao

AU - Saha, Prantik

AU - Zenyuk, Iryna V.

AU - Hickey, III, Robert John

AU - Kumar, Manish

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Artificial water channels are a practical alternative to biological water channels for achieving exceptional water permeability and selectivity in a stable and scalable architecture. However, channel-based membrane fabrication faces critical barriers such as: (1) increasing pore density to achieve measurable gains in permeability while maintaining selectivity, and (2) scale-up to practical membrane sizes for applications. Recently, we proposed a technique to prepare channel-based membranes using peptide-appended pillar[5]arene (PAP[5]) artificial water channels, addressing the above challenges. These multi-layered PAP[5] membranes (ML-PAP[5]) showed significantly improved water permeability compared to commercial membranes with similar molecular weight cut-offs. However, due to the distinctive pore structure of water channels and the layer-by-layer architecture of the membrane, the separation behavior is unique and was still not fully understood. In this paper, two unique selectivity trends of ML-PAP[5] membranes are discussed from the perspectives of channel geometry, ion exclusion, and linear molecule transport.

AB - Artificial water channels are a practical alternative to biological water channels for achieving exceptional water permeability and selectivity in a stable and scalable architecture. However, channel-based membrane fabrication faces critical barriers such as: (1) increasing pore density to achieve measurable gains in permeability while maintaining selectivity, and (2) scale-up to practical membrane sizes for applications. Recently, we proposed a technique to prepare channel-based membranes using peptide-appended pillar[5]arene (PAP[5]) artificial water channels, addressing the above challenges. These multi-layered PAP[5] membranes (ML-PAP[5]) showed significantly improved water permeability compared to commercial membranes with similar molecular weight cut-offs. However, due to the distinctive pore structure of water channels and the layer-by-layer architecture of the membrane, the separation behavior is unique and was still not fully understood. In this paper, two unique selectivity trends of ML-PAP[5] membranes are discussed from the perspectives of channel geometry, ion exclusion, and linear molecule transport.

UR - http://www.scopus.com/inward/record.url?scp=85054146125&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85054146125&partnerID=8YFLogxK

U2 - 10.1039/c8fd00043c

DO - 10.1039/c8fd00043c

M3 - Article

C2 - 29999507

AN - SCOPUS:85054146125

VL - 209

SP - 193

EP - 204

JO - Faraday Discussions

JF - Faraday Discussions

SN - 1364-5498

ER -