Initial bacterial deposition on bare and zeolite-coated aluminum alloy and stainless steel

Langmuir : the ACS Journal of Surfaces and Colloids
Gexin ChenSharon L Walker

Abstract

In this study, the impact of zeolite thin film coatings on bacterial deposition and "biofouling" of surfaces has been investigated in an aqueous environment. The synthesis of two types of zeolite coatings, ZSM-5 coated on aluminum alloy and zeolite A coated on stainless steel, and the characterization of the coated and bare metal surfaces are described. The extent of cell deposition onto the bare and zeolite-coated aluminum alloy and stainless steel surfaces is investigated in a parallel plate flow chamber system under a laminar flow conditions. The initial rates of bacterial transfer to the various surfaces are compared by utilizing a marine bacterium, Halomonas pacifica g, under a range of ionic strength conditions. H. pacifica g deposited onto bare metal surfaces to a greater extent as compared with cells deposited onto the zeolite coatings. The surface properties found to have the most notable effect on attachment are the electrokinetic and hydrophobicity properties of the metal and zeolite-coated surfaces. These results suggest that a combination of two chemical mechanisms-hydrophobic and electrostatic interactions-contribute to the antifouling nature of the zeolite surface. Additional observations on the relative role of ...Continue Reading

References

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Jun 4, 2005·Applied and Environmental Microbiology·Sharon L WalkerMenachem Elimelech
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May 26, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Gexin Chen, Sharon L Walker

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Citations

Jun 21, 2011·Environmental Science & Technology·Roy BernsteinViatcheslav Freger
Mar 30, 2012·Environmental Science & Technology·Indranil ChowdhurySharon L Walker
Jan 26, 2013·Environmental Science & Technology·Peng CaiSharon L Walker
Jul 22, 2015·Colloids and Surfaces. B, Biointerfaces·Jessamine Q FloresSharon L Walker
Jan 10, 2012·Journal of Colloid and Interface Science·Indranil Chowdhury, Sharon L Walker
Dec 24, 2013·Environmental Science. Processes & Impacts·Alicia A TaylorSharon L Walker
Apr 10, 2018·Biomaterials Science·Lucie BacakovaIvan Jirka
Nov 27, 2018·Journal of Biomaterials Science. Polymer Edition·Yu ZhongYonggang Yan
Jun 13, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Jérôme F L DuvalCarsten Werner
Feb 18, 2010·Accounts of Chemical Research·Christopher M LewYushan Yan
Jul 2, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Gexin ChenSharon L Walker

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