Abstract

Bacteriophage material (M13, wild-type) deposited as a film onto a poly-ethylene-terephthalate (PET) substrate (6 m thick with a 20 m diameter laser-drilled microhole) has been investigated for ion conductivity and ionic current rectification effects for potential applications in membranes. The M13 aggregate membrane forms under acidic conditions (in aqueous 10 mM acids) and behaves like a microporous anion conductor with micropores defined by the packing of cylindrical virus particles. Asymmetric deposition on the PET film substrate in conjunction with semi-permeability leads to anionic diode behaviour. Typical rectification ratio values are around 10 (determined at +/-1V) in aqueous 10 mM acids. Cationic guest species (aqueous Cu2+, Co2+, Ag+) consistently lead to a rectification minimum at 0.5 mM guest concentration. In contrast, anionic guest species (indigo carmine) lead to a similar rectification minimum already at 5 M concentration. The behaviour is proposed to be associated with cation exclusion effects on transport.
Original languageEnglish
JournalACS Applied Bio Materials
Early online date13 Dec 2019
DOIs
Publication statusE-pub ahead of print - 13 Dec 2019

Cite this

@article{602a0b325bdd4a059d78e1f71ec97b7e,
title = "Bacteriophage M13 Aggregation on a Microhole Poly(ethylene-terephthalate) Substrate Produces an Anionic Current Rectifier:: Sensitivity toward Anionic versus Cationic Guests",
abstract = "Bacteriophage material (M13, wild-type) deposited as a film onto a poly-ethylene-terephthalate (PET) substrate (6 m thick with a 20 m diameter laser-drilled microhole) has been investigated for ion conductivity and ionic current rectification effects for potential applications in membranes. The M13 aggregate membrane forms under acidic conditions (in aqueous 10 mM acids) and behaves like a microporous anion conductor with micropores defined by the packing of cylindrical virus particles. Asymmetric deposition on the PET film substrate in conjunction with semi-permeability leads to anionic diode behaviour. Typical rectification ratio values are around 10 (determined at +/-1V) in aqueous 10 mM acids. Cationic guest species (aqueous Cu2+, Co2+, Ag+) consistently lead to a rectification minimum at 0.5 mM guest concentration. In contrast, anionic guest species (indigo carmine) lead to a similar rectification minimum already at 5 M concentration. The behaviour is proposed to be associated with cation exclusion effects on transport.",
author = "Putra, {Budi Riza Putra} and Katarzyna Szot-Karpińska and Patryk Kudła and Han Yin and Jacob Boswell and Adam Squires and {da Silva}, Marcelo and Karen Edler and Philip Fletcher and Steve Parker and Frank Marken",
year = "2019",
month = "12",
day = "13",
doi = "10.1021/acsabm.9b00952",
language = "English",
journal = "ACS Applied Biomaterials",
issn = "2576-6422",
publisher = "American Chemical Society",

}

TY - JOUR

T1 - Bacteriophage M13 Aggregation on a Microhole Poly(ethylene-terephthalate) Substrate Produces an Anionic Current Rectifier:

T2 - Sensitivity toward Anionic versus Cationic Guests

AU - Putra, Budi Riza Putra

AU - Szot-Karpińska, Katarzyna

AU - Kudła , Patryk

AU - Yin, Han

AU - Boswell, Jacob

AU - Squires, Adam

AU - da Silva, Marcelo

AU - Edler, Karen

AU - Fletcher, Philip

AU - Parker, Steve

AU - Marken, Frank

PY - 2019/12/13

Y1 - 2019/12/13

N2 - Bacteriophage material (M13, wild-type) deposited as a film onto a poly-ethylene-terephthalate (PET) substrate (6 m thick with a 20 m diameter laser-drilled microhole) has been investigated for ion conductivity and ionic current rectification effects for potential applications in membranes. The M13 aggregate membrane forms under acidic conditions (in aqueous 10 mM acids) and behaves like a microporous anion conductor with micropores defined by the packing of cylindrical virus particles. Asymmetric deposition on the PET film substrate in conjunction with semi-permeability leads to anionic diode behaviour. Typical rectification ratio values are around 10 (determined at +/-1V) in aqueous 10 mM acids. Cationic guest species (aqueous Cu2+, Co2+, Ag+) consistently lead to a rectification minimum at 0.5 mM guest concentration. In contrast, anionic guest species (indigo carmine) lead to a similar rectification minimum already at 5 M concentration. The behaviour is proposed to be associated with cation exclusion effects on transport.

AB - Bacteriophage material (M13, wild-type) deposited as a film onto a poly-ethylene-terephthalate (PET) substrate (6 m thick with a 20 m diameter laser-drilled microhole) has been investigated for ion conductivity and ionic current rectification effects for potential applications in membranes. The M13 aggregate membrane forms under acidic conditions (in aqueous 10 mM acids) and behaves like a microporous anion conductor with micropores defined by the packing of cylindrical virus particles. Asymmetric deposition on the PET film substrate in conjunction with semi-permeability leads to anionic diode behaviour. Typical rectification ratio values are around 10 (determined at +/-1V) in aqueous 10 mM acids. Cationic guest species (aqueous Cu2+, Co2+, Ag+) consistently lead to a rectification minimum at 0.5 mM guest concentration. In contrast, anionic guest species (indigo carmine) lead to a similar rectification minimum already at 5 M concentration. The behaviour is proposed to be associated with cation exclusion effects on transport.

U2 - 10.1021/acsabm.9b00952

DO - 10.1021/acsabm.9b00952

M3 - Article

JO - ACS Applied Biomaterials

JF - ACS Applied Biomaterials

SN - 2576-6422

ER -