title: Electrochemical desorption of self-assembled monolayers noninvasively releases patterned cells from geometrical confinements.
abstract: This report describes a method to pattern mammalian cells using self-assembled monolayers (SAMs), and then to use electrochemical desorption of these monolayers to release cells from their patterns. This method uses an oligo(ethyleneglycol)-terminated SAM to prevent,-and a methyl-terminated SAM to allow-adsorption of proteins and attachment of bovine capillary endothelial cells. Electrochemical removal of the oligo(ethyleneglycol)-terminated SAM allowed proteins to adsorb onto areas that had been previously inert and enabled cells to migrate into these areas. This straightforward technique is useful in bioassays for drug screening and for fundamental studies in cell biology.
authors.affiliation: Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA.
authors.forename: Xingyu
authors.initials: X
authors.lastname: Jiang
authors.forename: Rosaria
authors.initials: R
authors.lastname: Ferrigno
authors.forename: Milan
authors.initials: M
authors.lastname: Mrksich
authors.forename: George M
authors.initials: GM
authors.lastname: Whitesides
mesh_terms: D000818:Animals; D001798:Blood Proteins / Q000737:chemistry; D002417:Cattle; D002465:Cell Movement / Q000187:drug effects / Q000502:physiology; D003510:Cyclohexanes; D003513:Cycloheximide / Q000494:pharmacology; D004563:Electrochemistry / Q000379:methods*; D004730:Endothelium, Vascular / Q000166:cytology* / Q000187:drug effects; D016326:Extracellular Matrix Proteins / Q000737:chemistry; D005231:Fatty Acids, Unsaturated / Q000494:pharmacology; D006046:Gold / Q000737:chemistry; D015739:Nocodazole / Q000494:pharmacology; D012717:Sesquiterpenes; D013438:Sulfhydryl Compounds / Q000737:chemistry*
chemical_list: D001798:Blood Proteins; D003510:Cyclohexanes; D016326:Extracellular Matrix Proteins; D005231:Fatty Acids, Unsaturated; D012717:Sesquiterpenes; D013438:Sulfhydryl Compounds; D006046:Gold; C026211:fumagillin; D003513:Cycloheximide; D015739:Nocodazole