Influenza virus surveillance using surface plasmon resonance

Surface-enhanced localized surface plasmon resonance biosensing of avian influenza DNA hybridization using subwavelength metallic nanoarrays.

We demonstrated enhanced localized surface plasmon resonance (SPR) biosensing based on subwavelength gold nanoarrays built on a thin gold film. Arrays of nanogratings (1D) and nanoholes (2D) with a period of 200 nm were fabricated by electron-beam lithography and used for the detection of avian influenza DNA hybridization. Experimental results showed that both nanoarrays provided significant se...

Small Molecule Immunosensing Using Surface Plasmon Resonance

Surface plasmon resonance (SPR) biosensors utilize refractive index changes to sensitively detect mass changes at noble metal sensor surface interfaces. As such, they have been extensively applied to immunoassays of large molecules, where their high mass and use of sandwich immunoassay formats can result in excellent sensitivity. Small molecule immunosensing using SPR is more challenging. It re...

Surface plasmon resonance biosensor

Imaging surface plasmon resonance

The central theme of this thesis is the use of imaging Surface Plasmon Resonance (iSPR) as a tool in the characterization of surfaces with laterally varying properties. Within the scope of this work, an instrument for iSPR analysis was designed and built. SPR is a very sensitive technique for monitoring changes in optical properties in the immediate vicinity of a sensor surface, which is very u...

Surface plasmon resonance

4. LIGAND 10 4.1. Direct versus indirect immobilisation 10 4.2. Covalent immobilisation 11 4.2.1. A general approach 11 4.2.2. Choice of chemistry 12 4.2.3. Prepare the protein 12 4.2.4. Pre-concentration 12 4.2.5. Amine coupling 14 4.2.6. Regeneration 15 4.2.7. Adjusting the immobilisation conditions. 16 4.3. Non-covalent immobilisation (ligand capture) 16 4.3.1. Using an existing strategy 17 ...