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Resistance of Zwitterionic Peptide Monolayers to Biofouling.

Publication ,  Journal Article
Ederth, T; Lerm, M; Orihuela, B; Rittschof, D
Published in: Langmuir : the ACS journal of surfaces and colloids
February 2019

Self-assembled monolayers (SAMs) are widely used in science and engineering, and recent progress has demonstrated the utility of zwitterionic peptides with alternating lysine (K) and glutamic acid (E) residues for antifouling purposes. Aiming at developing a peptide-based fouling-resistant SAM suitable for presentation of surface-attached pheromones for barnacle larvae, we have investigated five different peptide SAMs, where four are based on the EK motif, and the fifth was designed based on general principles for fouling resistance. The SAMs were formed by self-assembly onto gold substrates via cysteine residues on the peptides, and formation of SAMs was verified via ellipsometry, wettability, infrared reflection-absorption spectroscopy and cyclic voltammetry. Settlement of cypris larvae of the barnacle Balanus (=Amphibalanus) amphitrite, the target of pheromone studies, was tested. SAMs were also subjected to fouling assays using protein solutions, blood serum, and the bacterium Mycobacterium marinum. The results confirm the favorable antifouling properties of EK-containing peptides in most of the assays, although this did not apply to the barnacle larvae settlement test, where settlement was low on only one of the peptide SAMs. The one peptide that had antifouling properties for barnacles did not contain a pheromone motif, and would not be susceptible to degredation by common serine proteases. We conclude that the otherwise broadly effective antifouling properties of EK-containing peptide SAMs is not directly applicable to barnacles, and that great care must be exercised in the design of peptide-based SAMs for presentation of barnacle-specific ligands.

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Published In

Langmuir : the ACS journal of surfaces and colloids

DOI

EISSN

1520-5827

ISSN

0743-7463

Publication Date

February 2019

Volume

35

Issue

5

Start / End Page

1818 / 1827

Related Subject Headings

  • Thoracica
  • Surface Properties
  • Proteins
  • Peptides
  • Mycobacterium marinum
  • Membranes, Artificial
  • Humans
  • Gold
  • Chemical Physics
  • Blood
 

Citation

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Ederth, T., Lerm, M., Orihuela, B., & Rittschof, D. (2019). Resistance of Zwitterionic Peptide Monolayers to Biofouling. Langmuir : The ACS Journal of Surfaces and Colloids, 35(5), 1818–1827. https://doi.org/10.1021/acs.langmuir.8b01625
Ederth, Thomas, Maria Lerm, Beatriz Orihuela, and Daniel Rittschof. “Resistance of Zwitterionic Peptide Monolayers to Biofouling.Langmuir : The ACS Journal of Surfaces and Colloids 35, no. 5 (February 2019): 1818–27. https://doi.org/10.1021/acs.langmuir.8b01625.
Ederth T, Lerm M, Orihuela B, Rittschof D. Resistance of Zwitterionic Peptide Monolayers to Biofouling. Langmuir : the ACS journal of surfaces and colloids. 2019 Feb;35(5):1818–27.
Ederth, Thomas, et al. “Resistance of Zwitterionic Peptide Monolayers to Biofouling.Langmuir : The ACS Journal of Surfaces and Colloids, vol. 35, no. 5, Feb. 2019, pp. 1818–27. Epmc, doi:10.1021/acs.langmuir.8b01625.
Ederth T, Lerm M, Orihuela B, Rittschof D. Resistance of Zwitterionic Peptide Monolayers to Biofouling. Langmuir : the ACS journal of surfaces and colloids. 2019 Feb;35(5):1818–1827.
Journal cover image

Published In

Langmuir : the ACS journal of surfaces and colloids

DOI

EISSN

1520-5827

ISSN

0743-7463

Publication Date

February 2019

Volume

35

Issue

5

Start / End Page

1818 / 1827

Related Subject Headings

  • Thoracica
  • Surface Properties
  • Proteins
  • Peptides
  • Mycobacterium marinum
  • Membranes, Artificial
  • Humans
  • Gold
  • Chemical Physics
  • Blood