title: Opposite responses of cells and bacteria to micro/nanopatterned surfaces prepared by pulsed plasma polymerization and UV-irradiation.
abstract: Chemically and topographically patterned surfaces have high potential as model surfaces for studying cell and bacteria responses to surface chemistry and surface topography at a nanoscale level. In this work, we demonstrated the possibility to combine pulsed plasma polymerization and UV-irradiation to obtain topographical patterns and chemical patterns perfectly controlled at microlateral resolution and sub-micrometer depth level. Biological experiments were conducted using human osteoprogenitor cells and Escherichia coli K12. Proliferation and orientation of cells and bacteria were analyzed and discussed according to the size and the chemistry of the features. This work showed interesting opposite behavior of bacteria compared to eukaryotic cells, in response to the surface chemistry and to the surface topography. This result may be particularly useful on medical implants. From a methodological point of view, it highlighted the importance of working with versatile and well-characterized surfaces before and after sterilization. It also points out the relevance and the necessity of analyzing eukaryotic cell and bacteria adhesion in parallel way.
authors.affiliation: Institut de Sciences des Materiaux de Mulhouse, Universite de Haute-Alsace, 68057 Mulhouse Cedex, France.
authors.forename: L
authors.initials: L
authors.lastname: Ploux
authors.forename: K
authors.initials: K
authors.lastname: Anselme
authors.forename: A
authors.initials: A
authors.lastname: Dirani
authors.forename: A
authors.initials: A
authors.lastname: Ponche
authors.forename: O
authors.initials: O
authors.lastname: Soppera
authors.forename: V
authors.initials: V
authors.lastname: Roucoules
mesh_terms: D001422:Bacterial Adhesion / Q000187:drug effects; D001672:Biocompatible Materials / Q000009:adverse effects* / Q000737:chemistry*; D049109:Cell Proliferation / Q000187:drug effects; D002478:Cells, Cultured; D004926:Escherichia coli / Q000187:drug effects; D006801:Humans; D008422:Materials Testing; D049329:Nanostructures / Q000009:adverse effects* / Q000737:chemistry*; D010006:Osteoblasts / Q000166:cytology* / Q000187:drug effects; D023822:Tissue Engineering
chemical_list: D001672:Biocompatible Materials