Computer screen photo-excited surface plasmon resonance imaging

Analytica Chimica Acta
Daniel FilippiniIngemar Lundström

Abstract

Angle and spectra resolved surface plasmon resonance (SPR) images of gold and silver thin films with protein deposits is demonstrated using a regular computer screen as light source and a web camera as detector. The screen provides multiple-angle illumination, p-polarized light and controlled spectral radiances to excite surface plasmons in a Kretchmann configuration. A model of the SPR reflectances incorporating the particularities of the source and detector explain the observed signals and the generation of distinctive SPR landscapes is demonstrated. The sensitivity and resolution of the method, determined in air and solution, are 0.145 nm pixel(-1), 0.523 nm, 5.13x10(-3) RIU degree(-1) and 6.014x10(-4) RIU, respectively, encouraging results at this proof of concept stage and considering the ubiquity of the instrumentation.

References

Sep 8, 2000·Science·T A TatonR L Letsinger
Feb 15, 2003·Chemical Communications : Chem Comm·Daniel FilippiniIngemar Lundström
Aug 15, 2003·Nature·William L BarnesThomas W Ebbesen
Jul 13, 2005·Applied Optics·Soichi OtsukiS Wakida
May 4, 2006·Angewandte Chemie·Daniel FilippiniIngemar Lundström
Aug 16, 2006·Analytical Chemistry·Radislav A PotyrailoScott Boyette

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Citations

Oct 16, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Jessica L FelhoferCarlos D Garcia
Oct 18, 2012·Angewandte Chemie·Pakorn PreechaburanaDaniel Filippini
Sep 21, 2011·RSC Advances·Karin Y Chumbimuni-TorresCarlos D Garcia

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