Monolayer protected nanoparticles (MPNs) display fascinating size-dependent electronic, optical and catalytic properties. They are promising candidates to be used as building blocks with which to construct new generation nanoarchitectures and nanodevices for sensing, electronic and optoelectronic applications. The aggregation and dispersion of colloidal nanoparticles is one of the key issues closely related to their potential applications. Our knowledge of the colloid stability of nanoparticle dispersions with small sizes is still in its infancy, however, thymine is one of the bases in DNA, and is a pH sensitive and chromatic molecule. In the present study, thymine-functionalized self-assembled monolayer protected gold nanoparticles were synthesized. Their morphology and surface structure were characterized using TEM, UV-vis, FTIR, DSC-TGA and XPS techniques. The colloid stability of thymine-capped gold nanoparticle dispersions as a function of the type and concentration of monovalent salt, pH and particle size in alkaline aqueous solution were investigated. The manipulation of colloid stability with light was further explored. The results and conclusions are summarized inthis thesis.

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Thesis (Ph. D.)--McMaster University (Canada), 1988. / Source: Dissertation Abstracts International, Volume: 49-11, Section: B, page: 4838. Supervisor: Michael L. Klein.

Thesis (Ph. D.)--School of Chemistry, Faculty of Science, University of Sydney, 2005. / Includes bibliographical references.

Thesis (Ph. D.)--University of Sydney, 2005. / Title from title screen (viewed 26 May 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Chemistry, Faculty of Science. Degree awarded 2005; thesis submitted 2004. Includes bibliographical references. Also available in print form.

Thesis (M.S.)--Rochester Institute of Technology, 1988. / Typescript.

Thesis (M.S.)--University of Wisconsin--Madison, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.