Imprinting of metal receptors into multilayer polyelectrolyte films: fabrication and applications in marine antifouling

S.R. Puniredd, D. Janczewski, D.P. Go, X. Zhu, S. Guo, S.L-M. Teo, S.S.C. Lee, Gyula J. Vancso

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)
66 Downloads (Pure)

Abstract

Polymeric films constructed using the layer-by-layer (LbL) fabrication process were employed as a platform for metal ion immobilization and applied as a marine antifouling coating. The novel Cu2+ ion imprinting process described is based on the use of metal ion templates and LbL multilayer covalent cross-linking. Custom synthesized, peptide mimicking polycations composed of histidine grafted poly(allylamine) (PAH) to bind metal ions, and methyl ester containing polyanions for convenient cross-linking were used in the fabrication process. Two methods of LbL film formation have been investigated using alternate polyelectrolyte deposition namely non-imprinted LbLA, and imprinted LbLB. Both LbL films were cross linked at mild temperature to yield covalent bridging of the layers for improved stability in a sea water environment. A comparative study of the non-imprinted LbLA films and imprinted LbLB films for Cu2+ ion binding capacity, leaching rate and stability of the films was performed. The results reveal that the imprinted films possess enhanced affinity to retain metal ions due to the preorganization of imidazole bearing histidine receptors. As a result the binding capacity of the films for Cu2+ could be improved by seven fold. Antifouling properties of the resulting materials in a marine environment have been demonstrated against the settlement of barnacle larvae, indicating that controlled release of Cu ions was achieved.
Original languageUndefined
Pages (from-to)372-383
JournalChemical science
Volume6
DOIs
Publication statusPublished - 2015

Keywords

  • METIS-315289
  • IR-99959

Cite this

Puniredd, S.R. ; Janczewski, D. ; Go, D.P. ; Zhu, X. ; Guo, S. ; Teo, S.L-M. ; Lee, S.S.C. ; Vancso, Gyula J. / Imprinting of metal receptors into multilayer polyelectrolyte films: fabrication and applications in marine antifouling. In: Chemical science. 2015 ; Vol. 6. pp. 372-383.
@article{87e004768d924fa197e8ba810f5ff9fb,
title = "Imprinting of metal receptors into multilayer polyelectrolyte films: fabrication and applications in marine antifouling",
abstract = "Polymeric films constructed using the layer-by-layer (LbL) fabrication process were employed as a platform for metal ion immobilization and applied as a marine antifouling coating. The novel Cu2+ ion imprinting process described is based on the use of metal ion templates and LbL multilayer covalent cross-linking. Custom synthesized, peptide mimicking polycations composed of histidine grafted poly(allylamine) (PAH) to bind metal ions, and methyl ester containing polyanions for convenient cross-linking were used in the fabrication process. Two methods of LbL film formation have been investigated using alternate polyelectrolyte deposition namely non-imprinted LbLA, and imprinted LbLB. Both LbL films were cross linked at mild temperature to yield covalent bridging of the layers for improved stability in a sea water environment. A comparative study of the non-imprinted LbLA films and imprinted LbLB films for Cu2+ ion binding capacity, leaching rate and stability of the films was performed. The results reveal that the imprinted films possess enhanced affinity to retain metal ions due to the preorganization of imidazole bearing histidine receptors. As a result the binding capacity of the films for Cu2+ could be improved by seven fold. Antifouling properties of the resulting materials in a marine environment have been demonstrated against the settlement of barnacle larvae, indicating that controlled release of Cu ions was achieved.",
keywords = "METIS-315289, IR-99959",
author = "S.R. Puniredd and D. Janczewski and D.P. Go and X. Zhu and S. Guo and S.L-M. Teo and S.S.C. Lee and Vancso, {Gyula J.}",
year = "2015",
doi = "10.1039/c4sc02367f",
language = "Undefined",
volume = "6",
pages = "372--383",
journal = "Chemical science",
issn = "2041-6520",
publisher = "Royal Society of Chemistry",

}

Imprinting of metal receptors into multilayer polyelectrolyte films: fabrication and applications in marine antifouling. / Puniredd, S.R.; Janczewski, D.; Go, D.P.; Zhu, X.; Guo, S.; Teo, S.L-M.; Lee, S.S.C.; Vancso, Gyula J.

In: Chemical science, Vol. 6, 2015, p. 372-383.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Imprinting of metal receptors into multilayer polyelectrolyte films: fabrication and applications in marine antifouling

AU - Puniredd, S.R.

AU - Janczewski, D.

AU - Go, D.P.

AU - Zhu, X.

AU - Guo, S.

AU - Teo, S.L-M.

AU - Lee, S.S.C.

AU - Vancso, Gyula J.

PY - 2015

Y1 - 2015

N2 - Polymeric films constructed using the layer-by-layer (LbL) fabrication process were employed as a platform for metal ion immobilization and applied as a marine antifouling coating. The novel Cu2+ ion imprinting process described is based on the use of metal ion templates and LbL multilayer covalent cross-linking. Custom synthesized, peptide mimicking polycations composed of histidine grafted poly(allylamine) (PAH) to bind metal ions, and methyl ester containing polyanions for convenient cross-linking were used in the fabrication process. Two methods of LbL film formation have been investigated using alternate polyelectrolyte deposition namely non-imprinted LbLA, and imprinted LbLB. Both LbL films were cross linked at mild temperature to yield covalent bridging of the layers for improved stability in a sea water environment. A comparative study of the non-imprinted LbLA films and imprinted LbLB films for Cu2+ ion binding capacity, leaching rate and stability of the films was performed. The results reveal that the imprinted films possess enhanced affinity to retain metal ions due to the preorganization of imidazole bearing histidine receptors. As a result the binding capacity of the films for Cu2+ could be improved by seven fold. Antifouling properties of the resulting materials in a marine environment have been demonstrated against the settlement of barnacle larvae, indicating that controlled release of Cu ions was achieved.

AB - Polymeric films constructed using the layer-by-layer (LbL) fabrication process were employed as a platform for metal ion immobilization and applied as a marine antifouling coating. The novel Cu2+ ion imprinting process described is based on the use of metal ion templates and LbL multilayer covalent cross-linking. Custom synthesized, peptide mimicking polycations composed of histidine grafted poly(allylamine) (PAH) to bind metal ions, and methyl ester containing polyanions for convenient cross-linking were used in the fabrication process. Two methods of LbL film formation have been investigated using alternate polyelectrolyte deposition namely non-imprinted LbLA, and imprinted LbLB. Both LbL films were cross linked at mild temperature to yield covalent bridging of the layers for improved stability in a sea water environment. A comparative study of the non-imprinted LbLA films and imprinted LbLB films for Cu2+ ion binding capacity, leaching rate and stability of the films was performed. The results reveal that the imprinted films possess enhanced affinity to retain metal ions due to the preorganization of imidazole bearing histidine receptors. As a result the binding capacity of the films for Cu2+ could be improved by seven fold. Antifouling properties of the resulting materials in a marine environment have been demonstrated against the settlement of barnacle larvae, indicating that controlled release of Cu ions was achieved.

KW - METIS-315289

KW - IR-99959

U2 - 10.1039/c4sc02367f

DO - 10.1039/c4sc02367f

M3 - Article

VL - 6

SP - 372

EP - 383

JO - Chemical science

JF - Chemical science

SN - 2041-6520

ER -