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Morphology control and localized surface plasmon resonance in glancing angle deposited films Open Access


Other title
thin film
localized surface plasmon resonance
glancing angle deposition
Type of item
Degree grantor
University of Alberta
Author or creator
Gish, Douglas
Supervisor and department
Brett, Michael (Electrical and Computer Engineering)
Examining committee member and department
Sit, Jeremy (Electrical and Computer Engineering)
McDermott, Mark (Chemistry)
Brett, Michael (Electrical and Computer Engineering)
Department of Electrical and Computer Engineering

Date accepted
Graduation date
Master of Science
Degree level
This research investigates an extension of the glancing angle deposition (GLAD) technique and a biosensing application of films produced by GLAD. The extension to GLAD, called phi-sweep (PS), improves column isolation compared to films grown by traditional GLAD (TG) as well as modifies the column tilt angle, β, of the slanted columns according to tan(β_{PS}) = tan(β_{TG}) cos(γ), where γ is the sweep angle. The biosensing application makes use of localized surface plasmon resonance in noble metal GLAD films functionalized with rabbit immunoglobulin G (rIgG) to detect binding of anti-rabbit immunoglobulin G (anti-rIgG) to the films' surface. The extinction peak red-shifts a distance dependent on the concentration of anti-rIgG solution in a manner described by the Langmuir isotherm with a saturation value, Δλ_{max}, of 29.4 ± 0.7 nm and a surface confined thermodynamic binding constant, Kₐ, of (2.7 ± 0.3)×10⁶ M⁻¹.
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