Bacteriophage M13 Aggregation on a Microhole Poly(ethylene terephthalate) Substrate Produces an Anionic Current Rectifier : Sensitivity toward Anionic versus Cationic Guests
(2020) In ACS Applied Bio Materials 3(1). p.512-521- Abstract
Bacteriophage material (M13, wild-type) deposited as a film onto a poly(ethylene terephthalate) (PET) substrate (6 μm thick with a 20 μm 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 semipermeability leads to anionic diode behavior. Typical rectification ratio values are around 10 (determined at ±1 V) in aqueous 10 mM acids. Cationic guest species (aqueous... (More)
Bacteriophage material (M13, wild-type) deposited as a film onto a poly(ethylene terephthalate) (PET) substrate (6 μm thick with a 20 μm 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 semipermeability leads to anionic diode behavior. Typical rectification ratio values are around 10 (determined at ±1 V) 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 μM concentration. The behavior is proposed to be associated with cation exclusion effects on transport.
(Less)
- author
- publishing date
- 2020-01-21
- type
- Contribution to journal
- publication status
- published
- keywords
- bacteriophage, double layer, electrostatic interactions, ion transfer, nanofluidics, nanopore, sensor
- in
- ACS Applied Bio Materials
- volume
- 3
- issue
- 1
- pages
- 10 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85077136176
- ISSN
- 2576-6422
- DOI
- 10.1021/acsabm.9b00952
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: Copyright © 2019 American Chemical Society.
- id
- 1213dcb2-be1f-455a-9178-fce97b1e55f5
- date added to LUP
- 2023-01-18 09:02:39
- date last changed
- 2023-02-03 10:47:04
@article{1213dcb2-be1f-455a-9178-fce97b1e55f5, abstract = {{<p>Bacteriophage material (M13, wild-type) deposited as a film onto a poly(ethylene terephthalate) (PET) substrate (6 μm thick with a 20 μm 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 semipermeability leads to anionic diode behavior. Typical rectification ratio values are around 10 (determined at ±1 V) in aqueous 10 mM acids. Cationic guest species (aqueous Cu<sup>2+</sup>, Co<sup>2+</sup>, Ag<sup>+</sup>) 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 μM concentration. The behavior is proposed to be associated with cation exclusion effects on transport.</p>}}, author = {{Putra, Budi Riza and Szot-Karpińska, Katarzyna and Kudła, Patryk and Yin, Han and Boswell, Jacob A. and Squires, Adam M. and da Silva, Marcelo A. and Edler, Karen J. and Fletcher, Philip J. and Parker, Stephen C. and Marken, Frank}}, issn = {{2576-6422}}, keywords = {{bacteriophage; double layer; electrostatic interactions; ion transfer; nanofluidics; nanopore; sensor}}, language = {{eng}}, month = {{01}}, number = {{1}}, pages = {{512--521}}, publisher = {{The American Chemical Society (ACS)}}, series = {{ACS Applied Bio Materials}}, title = {{Bacteriophage M13 Aggregation on a Microhole Poly(ethylene terephthalate) Substrate Produces an Anionic Current Rectifier : Sensitivity toward Anionic versus Cationic Guests}}, url = {{http://dx.doi.org/10.1021/acsabm.9b00952}}, doi = {{10.1021/acsabm.9b00952}}, volume = {{3}}, year = {{2020}}, }