Microfluidic self-assembly of quantum dot compound micelles
DSpace at University of Victoria
View Archive Info| Field | Value | |
| Creator |
Schabas, Greg
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| Date |
2007-08-27T23:50:14Z
2007-08-27T23:50:14Z 2007 2007-08-27T23:50:14Z |
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| Identifier |
http://hdl.handle.net/1828/206
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| Description |
This thesis is devoted to the development of microfluidic processes for the controlled self-assembly of quantum dot compound micelles (QDCMs). Microfluidic processes are developed to combine the constituents (cadmium sulfide quantum dots, and block copolymer stabilizing chains) with water to facilitate self-assembly of the composite particles, QDCMs, through initial phase separation, subsequent growth, and eventual quenching. Two genres of microfluidic reactors are developed. The on-chip evolution of QDCM formation and growth is resolved through fluorescence microscopy; QDCM size distributions and associated statistics are determined through off-chip analysis by transmission electron microscopy (TEM). In a flow-focusing reactor, control over the mean size of QDCMs is demonstrated through both the water concentration and the growth time (or reactor channel length). Controlled QDCM self-assembly is also demonstrated in a multiphase gas-liquid reactor. In contrast to the flow-focusing reactor, increasing the multiphase reactor channel length results in a decrease in QDCM size and polydispersity.
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| Language |
English
en |
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| Rights |
Available to the World Wide Web
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| Subject |
Microfluidics
Quantum Dots Micelles UVic Subject Index::Sciences and Engineering::Engineering::Mechanical engineering |
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| Title |
Microfluidic self-assembly of quantum dot compound micelles
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| Type |
Thesis
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| Contributor |
Sinton, David
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