Title

Antifouling Character of 'Active' Hybrid Xerogel Coatings with Sequestered Catalysts for the Activation of Hydrogen Peroxide

Author Info

Daniell M. McMaster, State University of New York
Stephanie M. Bennett, State University of New York
Ying Tang, State University of New York
John A. Finlay, University of Birmingham
Gregory L. Kowalke, California Polytechnic State University - San Luis Obispo
Brian Nedved, University of Hawaii at Manoa
Frank V. Bright, State University of New York
Maureen E. Callow, University of Birmingham
James A. Callow, University of Birmingham
Dean E. Wendt, California Polytechnic State University - San Luis Obispo
Michael G. Hadfield, University of Hawaii at Manoa
Michael R. Detty, State University of New York

Recommended Citation

Postprint version. Published in Biofouling, Volume 25, Issue 1, January 1, 2009, pages 21-33.

The definitive version is available at https://doi.org/10.1080/08927010802431298.

Abstract

Halide-permeable xerogel films prepared from sols containing 50 mol% aminopropyltriethoxysilane (APTES)/50 mol% tetraethoxysilane (TEOS) or 10 mol% APTES/90 mol% TEOS and 0.015 M selenoxide or telluride catalyst in the sol gave reduced settlement of cypris larvae of the barnacle Balanus amphitrite and larvae of the tubeworm Hydroides elegans in the presence of artificial seawater (ASW) and hydrogen peroxide (5-100 μM) relative to glass controls. Settlement of Ulva zoospores was lower on both the 50 mol% APTES/50 mol% TEOS and 10 mol% APTES/90 mol% TEOS xerogel formulations in comparison with glass controls with or without the added catalyst. The 50 mol% APTES/50 mol%TEOS xerogel containing telluride catalyst gave reduced settlement of Ulva zoospores in the presence of 100 μM H₂O₂ in ASW compared with the same coating without added peroxide. Scanning electron microscopy and XPS data suggest that exposure to H₂O₂ does not lead to chemical or morphological changes on the xerogel surface.

Disciplines

Biology

Copyright

2009 Taylor & Francis.

Publisher statement

This is an electronic version of an article published in Biofouling.