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The Control of Marine Biofouling on Xerogel Surfaces with Nanometer-Scale Topography
Biofouling: The Journal of Bioadhesion and Biofilm Research
  • Nikhil Gunari, University of Toronto
  • Lenora H. Brewer, California Polytechnic State University - San Luis Obispo
  • Stephanie M. Bennett, University at Buffalo
  • Anastasiya Sokolova, University at Buffalo
  • Nadine D. Kraut, University at Buffalo
  • John A. Finlay, University of Birmingham
  • Anne E. Meyer, University at Buffalo
  • Gilbert C. Walker, University of Toronto
  • Dean E. Wendt, California Polytechnic State University - San Luis Obispo
  • Maureen E. Callow, University of Birmingham
  • James A. Callow, University of Birmingham
  • Frank V. Bright, University at Buffalo
  • Michael R. Detty, University at Buffalo
Publication Date
1-1-2011
Abstract
Mixtures of n-octadecyltrimethoxysilane (C18, 1-5 mole-%), n-octyltriethoxysilane (C8) and tetraethoxysilane (TEOS) gave xerogel surfaces of varying topography. The 1:49:50 C18/C8/TEOS xerogel formed 100-400-nm-wide, 2-7-nm deep pores by AFM while coatings with ≥3% C18 were free of such features. Segregation of the coating into alkane-rich and alkane-deficient regions in the 1:49:50 C18/C8/TEOS xerogel was observed by IR microscopy. Immersion in ASW for 48 h gave no statistical difference in surface energy for the 1:49:50 C18/C8/TEOS xerogel and a significant increase for the 50:50 C8/TEOS xerogel. Settlement of barnacle cyprids and removal of juvenile barnacles, settlement of zoospores of the alga Ulva linza, and strength of attachment of 7-day sporelings were compared amongst the xerogel formulations. Settlement of barnacle cyprids was significantly lower in comparison to glass and polystyrene standards. The 1:49:50 and 3:47:50 C18/C8/TEOS xerogels were comparable to PDMSE with respect to removal of juvenile barnacles and sporeling biomass, respectively.
Disciplines
Publisher statement
This is an electronic version of an article published in Biofouling: The Journal of Bioadhesion and Biofilm Research .
Citation Information
Nikhil Gunari, Lenora H. Brewer, Stephanie M. Bennett, Anastasiya Sokolova, et al.. "The Control of Marine Biofouling on Xerogel Surfaces with Nanometer-Scale Topography" Biofouling: The Journal of Bioadhesion and Biofilm Research Vol. 27 Iss. 2 (2011) p. 137 - 149
Available at: http://works.bepress.com/dwendt/25/