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

Zeininger, Lukas; Weyandt, E.; Savagatrup, S.; Harvey, K.S.; Zhang, Q.; Zhao, Y.; Swager, T.M.

doi:10.1039/c9lc00070d

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

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Citation

Zeininger, L., Weyandt, E., Savagatrup, S., Harvey, K., Zhang, Q., Zhao, Y., et al. (2019). Waveguide-based chemo- and biosensors: complex emulsions for the detection of caffeine and proteins. Lab on a Chip, 19(8), 1327-1331. doi:10.1039/c9lc00070d.

Cite as: https://hdl.handle.net/21.11116/0000-0005-461B-F

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. © 2019 The Royal Society of Chemistry.