Label-free study of Bovine Serum Albumin conformational dynamics using optical nanotweezers and experimental analysis of asymmetric DNH nanostructures

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dc.contributor.authorGeorge, Sherin
dc.contributor.supervisorGordon, Reuven
dc.date.accessioned2024-12-06T21:18:39Z
dc.date.available2024-12-06T21:18:39Z
dc.date.issued2024
dc.degree.departmentDepartment of Electrical and Computer Engineering
dc.degree.levelMaster of Applied Science MASc
dc.description.abstractThis thesis concerns the label-free investigation of Bovine Serum Albumin (BSA) conformational dynamics and the interaction of different proteins with gold surfaces using Double Nanohole(DNH) optical tweezers. It is divided into two parts: Study of conformational changes of labeled and unlabelled BSA and investigation of electrostatic interactions between proteins and gold surfaces. The Gibbs energy for the N to F states was calculated for both labeled and unlabelled BSA from the free energy diagram and the values show a small effect of labeling on the protein. This Chapter also explored the effect of electrostatic interactions between the gold surface and proteins with different charges on the trapping stiffness. Further, the experimental investigation of the development of a new nanostructure called Asymmetric Double Nanohole and its possible application in optical trapping are described in this thesis. Fabrication techniques and result analysis are described, even though the trapping efficiency turned out to be the same as that for traditional DNH structures.
dc.description.scholarlevelGraduate
dc.identifier.urihttps://hdl.handle.net/1828/20827
dc.languageEnglisheng
dc.language.isoen
dc.rightsAvailable to the World Wide Web
dc.subjectOptical tweezers
dc.subjectLabel free study
dc.subjectDouble Nanoholes
dc.titleLabel-free study of Bovine Serum Albumin conformational dynamics using optical nanotweezers and experimental analysis of asymmetric DNH nanostructures
dc.typeThesis

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