High throughput plasmonic sensors are a popular research field, standard surface plasmon resonance (SPR)
instruments can achieve high throughput only in imaging configuration. This leads to consideration of pattern
substrates and isolated nanoparticle arrays, both of which have some disadvantages. Spot functionalisation relies
upon mask or pin printing to accomplish density, and this increase the complexity of use and standard operating
procedures. Both patterned and nanoparticle arrays assay platforms are also commonly single use, unlike some SPR
imaging and multi channel angular sensing SPR approaches. The microarray format proposed here is intended for
multiple usages and regenerated, with a simple optical readout method. A plasmonic polymer of exquisite refractive
index sensitivity and incorporate glass-like physical and mechanical stability provides the sensing element to the
platform. Further, the standard sol-gel chemistry is well understood and amenable to easy covalent functionalisation
as well as matrix methods such as nitrocellulose for biomolecule fictionalization. Two forms of polymer templating
have been developed. For spots greater than 700μm a double side tape method can be applied and for sub 700μm
patterned SU-8 and 100nm Aluminum reflective layer allow greater spot resolution. Proof of concept through
refractive index sensing is demonstrated.
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