Selective adhesion of Bacillus cereus spores on heterogeneously wetted silicon nanowires.
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.
Galopin
Elisabeth
E
Institut de Recherche Interdisciplinaire (CNRS-USR 3078), Parc de la Haute Borne, 50 Avenue de Halley, BP 70478, 59658 Villeneuve d'Ascq, France.
Piret
Gaelle
G
Szunerits
Sabine
S
Lequette
Yannick
Y
Faille
Christine
C
Boukherroub
Rabah
R
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
D010087:Oxides; D012821:Silanes; D017655:Silicon Compounds; D014867:Water; C116473:silicon monoxide; D012825:Silicon