Nucleic base-directed adsorption of colloids and polyelectrolytes

The primary objective of this work has been the advancement of selective adsorption techniques by use of new interactions and development of new approaches to the directed assembly of colloidal species. The ability to control the assembly from solution of complex and composite surface arrays by chemical patterning of surfaces is of great interest for the creation of nano- and micro-scale features without the costs and constraints of traditional lithography. Previous work in this group having demonstrated the patterning of polyelectrolyte multilayers by assembly on chemically-patterned surfaces, this thesis features a variation of selective adsorption in which polyelectrolytes of known substrate selectivity control the adsorption of the colloids onto which they are layered. The first section of this thesis will describe the evolution of this technique in response to certain limitations inherent to the patterning of multilayered films. Perfluorinated surfaces, proposed as potential adsorption resists, were found to display only partial or relative selectivity to common polyelectrolytes in the context of layer-by-layer assembly, an observation consistent with trends predicted by free-energy modeling. However, when these same polymers were layered on colloids, absolute selectivity could be more easily achieved.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Chemical Engineering.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2007

Author dc:creator

• Terrot, Marianne S. (Marianne Simon)

Advisor dc:contributor.advisor

• Paula T. Hammond.

• Chemical Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/39351
• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Identifier URI

http://dspace.mit.edu/handle/1721.1/39351

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/39351