Waveguide-based chemo- and biosensors: Complex emulsions for the detection of caffeine and proteins

Lukas Zeininger, Elisabeth Weyandt, Suchol Savagatrup, Kent S. Harvey, Qifan Zhang, Yanchuan Zhao, Timothy M. Swager

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We report on a new modular sensing approach in which complex emulsions serve as efficient transducers in optical evanescent field-based sensing devices. Specifically, we leverage the tunable refractive index upon chemically triggered changes in droplet morphology or orientation. Variations in the optical coupling result in readily detectable changes in the light transmitted from a waveguide.

Original languageEnglish (US)
Pages (from-to)1327-1331
Number of pages5
JournalLab on a Chip
Volume19
Issue number8
DOIs
StatePublished - Apr 21 2019
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Chemistry(all)
  • Biomedical Engineering

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