Show simple item record

dc.contributor.authorDerrien, Thomas Louis Frederic
dc.date.accessioned2017-07-07T12:48:43Z
dc.date.available2019-06-08T06:02:20Z
dc.date.issued2017-05-30
dc.identifier.otherDerrien_cornellgrad_0058F_10196
dc.identifier.otherhttp://dissertations.umi.com/cornellgrad:10196
dc.identifier.otherbibid: 9948855
dc.identifier.urihttps://hdl.handle.net/1813/51632
dc.description.abstractHighly ordered nanoparticle arrays, or nanoparticle superlattices, are a sought after class of materials due to their novel physical properties, distinct from both the individual nanoparticle and the bulk material from which they are composed. Several successful methods have been established to produce these exotic materials. One method in particular, DNA-mediated assembly, has enabled a stunning variety of lattice structures to be constructed. By covalently conjugating DNA molecules to nanoparticle surfaces, this method uses the sequence binding specificity of DNA to mediate the large-scale assembly of nanoparticles. This method however, relies on complex sequence design, and is optimized to a very specific set of solution parameters, such as pH, ionic strength, and temperature. Here, we sought to expand the parameter base in which DNA capped gold nanoparticles can form superlattices in solution. This was achieved by treating DNA as a generic polymer, namely by eliminating the complex base-pairing interactions, greatly simplifying the assembly process. In particular we aimed to understand the solution phase parameters governing the assembly dynamics of DNA-capped gold nanoparticles. The adsorption dynamics of individual DNA-capped gold nanoparticles on a positively charged substrate was first characterized in various electrolyte solutions, establishing a kinetic model of adsorption. These same parameters were then used to facilitate the self-assembly of three-dimensional DNA-capped gold nanoparticles in solution. Finally, progress towards the application of solution phase two-dimensional nanoparticle superlattices was undertaken. We envision that this work characterizing and elucidating the solution phase dynamics of DNA-capped gold nanoparticles will serve to ultimately facilitate their application in functional materials.
dc.language.isoen_US
dc.subjectcrystallization
dc.subjectGold Nanoparticles
dc.subjectsuperlattices
dc.subjectPhysical chemistry
dc.subjectMaterials Science
dc.subjectDNA
dc.subjectNanoparticles
dc.subjectSelf-assembly
dc.titleTHE DYNAMICS OF DNA-CAPPED GOLD NANOPARTICLE SUPERLATTICE ASSEMBLY IN ELECTROLYTE SOLUTIONS
dc.typedissertation or thesis
thesis.degree.disciplineBiological and Environmental Engineering
thesis.degree.grantorCornell University
thesis.degree.levelDoctor of Philosophy
thesis.degree.namePh. D., Biological and Environmental Engineering
dc.contributor.chairLuo, Dan
dc.contributor.committeeMemberWiesner, Ulrich B
dc.contributor.committeeMemberPollack, Lois
dcterms.licensehttps://hdl.handle.net/1813/59810
dc.identifier.doihttps://doi.org/10.7298/X4VD6WKT


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Statistics