title: Antibacterial fluorinated silica colloid superhydrophobic surfaces.
abstract: A superhydrophobic xerogel coating synthesized from a mixture of nanostructured fluorinated silica colloids, fluoroalkoxysilane, and a backbone silane is reported. The resulting fluorinated surface was characterized using contact angle goniometry, scanning electron microscopy (SEM), and atomic force microscopy (AFM). Quantitative bacterial adhesion studies performed using a parallel plate flow cell demonstrated that the adhesion of Staphylococcus aureus and Pseudomonas aeruginosa was reduced by 2.08 ± 0.25 and 1.76 ± 0.12 log over controls, respectively. This simple superhydrophobic coating synthesis may be applied to any surface, regardless of geometry, and does not require harsh synthesis or processing conditions, making it an ideal candidate as a biopassivation strategy.
authors: Department of Chemistry, University of North Carolina at Chapel Hill, CB 3290, Chapel Hill, North Carolina 27599, USA.
authors: Benjamin J
authors: BJ
authors: Privett
authors: Jonghae
authors: J
authors: Youn
authors: Sung A
authors: SA
authors: Hong
authors: Jiyeon
authors: J
authors: Lee
authors: Junhee
authors: J
authors: Han
authors: Jae Ho
authors: JH
authors: Shin
authors: Mark H
authors: MH
authors: Schoenfisch
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D001422:Bacterial Adhesion / Q000187:drug effects; D003102:Colloids / Q000737:chemistry; D005782:Gels / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D057927:Hydrophobic and Hydrophilic Interactions; D008826:Microbial Sensitivity Tests; D010316:Particle Size; D011550:Pseudomonas aeruginosa / Q000187:drug effects*; D012821:Silanes / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D013211:Staphylococcus aureus / Q000187:drug effects*; D013329:Structure-Activity Relationship; D013499:Surface Properties
chemical_list: D000900:Anti-Bacterial Agents; D003102:Colloids; D005782:Gels; D012821:Silanes