Application of Dynamic Light Scattering to Chemical and Biomolecular Engineering: Polymers, Proteins, and Liquid Crystals

dc.contributor.advisorAnisimov, Mikhail Aen_US
dc.contributor.authorLinegar, Kirtland Leeen_US
dc.contributor.departmentChemical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.description.abstractDynamic Light Scattering (DLS) is a powerful tool for probing soft-matter. The history, equipment, and basic theory of DLS is outlined. Three applications of DLS representing contemporary problems in chemical and biomolecular engineering are presented: polymers, proteins, and liquid crystals. DLS was performed on the polymer poly(ethylene glycol) in aqueous solutions to discern a conformational change from a coil to a helix when dissolved in isobutyric acid and to compare DLS and small angle neutron scattering (SANS) measurements. DLS experiments were conducted on the protein GroEL to determine the aggregation kinetics of the protein in solution. Finally, we observed a phenomenon never before seen associated with the relaxation of fluctuations of anisotropy and concentration fluctuations in a lyotropic chromonic liquid crystal solution of cromolyn. This phenomenon causes a significant increase of the effective relaxation time of the anisotropy fluctuations with an increase of the wave-number of the fluctuations.en_US
dc.format.extent5432396 bytes
dc.subject.pqcontrolledEngineering, Chemicalen_US
dc.subject.pqcontrolledChemistry, Biochemistryen_US
dc.subject.pqcontrolledEngineering, Chemicalen_US
dc.subject.pquncontrolledDynamic Light Scatteringen_US
dc.subject.pquncontrolledPhoton Correlation Spectroscopyen_US
dc.subject.pquncontrolledprotein aggregationen_US
dc.subject.pquncontrolleddynamic fluctuationsen_US
dc.subject.pquncontrolledhydrodynamic radiusen_US
dc.titleApplication of Dynamic Light Scattering to Chemical and Biomolecular Engineering: Polymers, Proteins, and Liquid Crystalsen_US
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