title: Antimicrobial behavior of novel surfaces generated by electrophoretic deposition and breakdown anodization.
abstract: Biofilms have devastating impacts on many industries such as increased fuel consumption and damage to surfaces in maritime industries. Ideal biofouling management is inhibition of initial bacterial attachment. The attachment of a model marine bacterium (Halomonas pacfica g) was investigated to evaluate the potential of these new novel surfaces to resist initial bacterial adhesion. Novel engineered surfaces were generated via breakdown anodization or electrophoretic deposition, to modify three parameters: hydrophobicity, surface chemistry, and roughness. Mass transfer rates were determined using a parallel plate flow chamber under relevant solution chemistries. The greatest deposition was observed on the superhydrophilic surface, which had micro- and nano-scale hierarchical structures composed of titanium oxide deposited on a titanium plate. Conversely, one of the hydrophobic surfaces with micro-porous films overlaid with polydimethylsiloxane appeared to be most resistant to cell attachment.
authors.affiliation: Department of Chemical and Environmental Engineering, University of California, Riverside, CA, USA.
authors.forename: Jessamine Q
authors.initials: JQ
authors.lastname: Flores
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
authors.forename: Young Soo
authors.initials: YS
authors.lastname: Joung
authors.affiliation: Department of Chemical and Environmental Engineering, University of California, Riverside, CA, USA.
authors.forename: Nichola M
authors.initials: NM
authors.lastname: Kinsinger
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
authors.forename: Xinglin
authors.initials: X
authors.lastname: Lu
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
authors.forename: Cullen R
authors.initials: CR
authors.lastname: Buie
authors.affiliation: Department of Chemical and Environmental Engineering, University of California, Riverside, CA, USA. Electronic address: swalker@engr.ucr.edu.
authors.forename: Sharon L
authors.initials: SL
authors.lastname: Walker
mesh_terms: D000890:Anti-Infective Agents; D001422:Bacterial Adhesion; D004566:Electrodes; D004586:Electrophoresis / Q000379:methods*; D057927:Hydrophobic and Hydrophilic Interactions; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
chemical_list: D000890:Anti-Infective Agents
keywords: Bacterial adhesion; Biofilms; Biofouling; Parallel plate flow chamber; Titanium oxide polydimethylsiloxane