This technique measures thin Au films, where a surface plasmon is easily excited by polarized light. A plasmon is very sensitive any surface modifications that happen on Au film. Therefore we are able to detect single molecule layers, as well as measure their change with proccesing and/or time. The plasmon resonance is detected by Ellipsometer and thickness data is extracted using a resonant Au model. The main advantage of our tool is imaging camera, allowing seeing micrometer resolution molecular patterns.
iSPR service: iSPR_service_app_sheet.pdft
Tested materials:
Hydrogels, SAMs, thyols, Silanes, lipids on SPR Au layer. Real-time protein binding kinetics
Our examples:
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- Ellipsometric image after click reaction on SAM C₁₁OH
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- Dark squares are at SPR angle to measure kinetics of trisNTA bindingIndicative price: 10x uCP stamped SAM with iSPR verified quality @ 1300 EUR ~ 2 days of work
