title: Selective adhesion of Bacillus cereus spores on heterogeneously wetted silicon nanowires.
abstract: The article reports on the selective adhesion of Bacillus cereus spores on patterned and heterogeneously wetted superhydrophobic silicon nanowires surfaces. Superhydrophilic patterns on superhydrophobic silicon nanowire (SiNW) surfaces were prepared by a standard optical lithography technique. Exposure of the patterned surface to a suspension of B. cereus spores in water led to their specific adsorption in superhydrophobic areas. Comparable results were obtained on a patterned hydrophobic/hydrophilic flat silicon (Si) surface even though a higher concentration of spores was observed on the hydrophobic areas, as compared to the superhydrophobic regions of the SiNW substrate. The surfaces were characterized using scanning electron microscopy (SEM), fluorescence spectroscopy, and contact angle measurements.
authors.affiliation: Institut de Recherche Interdisciplinaire (CNRS-USR 3078), Parc de la Haute Borne, 50 Avenue de Halley, BP 70478, 59658 Villeneuve d'Ascq, France.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Galopin
authors.forename: Gaelle
authors.initials: G
authors.lastname: Piret
authors.forename: Sabine
authors.initials: S
authors.lastname: Szunerits
authors.forename: Yannick
authors.initials: Y
authors.lastname: Lequette
authors.forename: Christine
authors.initials: C
authors.lastname: Faille
authors.forename: Rabah
authors.initials: R
authors.lastname: Boukherroub
mesh_terms: D001409:Bacillus cereus / Q000378:metabolism*; D001422:Bacterial Adhesion; D057927:Hydrophobic and Hydrophilic Interactions; D008855:Microscopy, Electron, Scanning; D008856:Microscopy, Fluorescence; D009068:Movement; D053770:Nanowires / Q000737:chemistry; D010087:Oxides / Q000737:chemistry; D012821:Silanes / Q000737:chemistry; D012825:Silicon / Q000737:chemistry; D017655:Silicon Compounds / Q000737:chemistry; D013171:Spores, Bacterial / Q000378:metabolism; D013499:Surface Properties; D014867:Water / Q000737:chemistry
chemical_list: D010087:Oxides; D012821:Silanes; D017655:Silicon Compounds; D014867:Water; C116473:silicon monoxide; D012825:Silicon