A surface plasmon resonance biochip that operates both in the angular and wavelength interrogation modes

Leiva Casemiro Oliveira, Cleumar Da Silva Moreira, Carsten Thirstrup, Elmar Uwe Kurt Melcher, Antonio Marcus Nogueira Lima, Helmut Neff

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

This paper presents a surface plasmon resonance system based on a polymer prism chip. The device allows operation in both the angular and wavelength interrogation modes. The biochip design is discussed emphasizing the effect of the ambient temperature over the optical behavior. Birefringence effect, biochip polishing, and responsivity are also reported. The basic mathematical formulation for both operating modes is discussed, and morphological parameters are considered in the data analysis. Experimental sensorgrams obtained at both interrogation modes with the same polymer prism chip are presented and compared. The experimental sensorgrams obtained with assays providing reversible (phosphate buffered saline and hypochlorite solutions) and irreversible (neutravindin solution) bindings demonstrate the feasibility of the proposed design.

Original languageEnglish
Article number6408117
Pages (from-to)1223-1232
Number of pages10
JournalIEEE Transactions on Instrumentation and Measurement
Volume62
Issue number5
DOIs
StatePublished - 2013
Externally publishedYes

Keywords

  • Biomedical transducers
  • optical spectroscopy
  • optical transducers
  • optoelectronic devices
  • plasmons
  • thin-film devices

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