Immobilization of dendrimers on Si-C linked carboxylic acid-terminated monolayers on silicon(111)

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dc.contributor.authorBocking, Ten_AU
dc.contributor.authorWong, ELSen_AU
dc.contributor.authorJames, Men_AU
dc.contributor.authorWatson, JAen_AU
dc.contributor.authorBrown, CLen_AU
dc.contributor.authorChilcott, TCen_AU
dc.contributor.authorBarrow, KDen_AU
dc.contributor.authorCoster, HGLen_AU
dc.date.accessioned2008-04-09T06:21:37Zen_AU
dc.date.accessioned2010-04-30T05:06:35Zen_AU
dc.date.available2008-04-09T06:21:37Zen_AU
dc.date.available2010-04-30T05:06:35Zen_AU
dc.date.issued2006-12-05en_AU
dc.date.statistics2006-12en_AU
dc.description.abstractPoly(amidoamine) dendrimers were attached to activated undecanoic acid monolayers, covalently linked to smooth silicon surfaces via Si-C bonds. The resulting ultra-thin dendrimer films were characterized by X-ray photoelectron spectroscopy (XPS), X-ray reflectometry (XR) and atomic force microscopy (AFM). XPS results suggested amide bond formation between the dendrimer and the surface carboxylic acid groups. XR yielded thicknesses of 10 angstrom for the alkyl region of the undecanoic acid monolayer and 12 A for the dendrimer layer, considerably smaller than the diameter of these spherical macromolecules in solution. This was consistent with AFM images showing collapsed dendrimers on the surface. It was concluded that the deformation arose from a large number of amine groups on the surface of each dendrimer reacting efficiently with the activated surface, whereby the dendrimers can deform to fill voids while spreading over the activated surface to form a homogeneous macromolecular layer. © 2006, Elsevier Ltd.en_AU
dc.identifier.citationBocking, T., Wong, E. L. S., James, M., Watson, J. A., Brown, C. L., Chilcott, T. C., Barrow, K. D., & Coster, H. G. L. (2006). Immobilization of dendrimers on Si-C linked carboxylic acid-terminated monolayers on silicon(111). Thin Solid Films, 515(4), 1857-1863. doi:10.1016/j.tsf.2006.07.017en_AU
dc.identifier.govdoc1422en_AU
dc.identifier.issn0040-6090en_AU
dc.identifier.issue4en_AU
dc.identifier.journaltitleThin Solid Filmsen_AU
dc.identifier.pagination1857-1863en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.tsf.2006.07.017en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1057en_AU
dc.identifier.volume515en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCarboxylic acidsen_AU
dc.subjectSiliconen_AU
dc.subjectThin filmsen_AU
dc.subjectX-ray photoelectron spectroscopyen_AU
dc.subjectSurfacesen_AU
dc.subjectAtomic force microscopyen_AU
dc.titleImmobilization of dendrimers on Si-C linked carboxylic acid-terminated monolayers on silicon(111)en_AU
dc.typeJournal Articleen_AU
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