A modular yeast biosensor for low-cost point-of-care pathogen detection

Ostrov, N., Jimenez, M., Billerbeck, S., Brisbois, J., Matragrano, J., Ager, A. & Cornish, V. W., Jun-2017, In : Science Advances. 3, 6, 9 p., e1603221.

Research output: Contribution to journalArticleAcademicpeer-review

  • Nili Ostrov
  • Miguel Jimenez
  • Sonja Billerbeck
  • James Brisbois
  • Joseph Matragrano
  • Alastair Ager
  • Virginia W Cornish

The availability of simple, specific, and inexpensive on-site detection methods is of key importance for deployment of pathogen surveillance networks. We developed a nontechnical and highly specific colorimetric assay for detection of pathogen-derived peptides based on Saccharomyces cerevisiae-a genetically tractable model organism and household product. Integrating G protein-coupled receptors with a visible, reagent-free lycopene readout, we demonstrate differential detection of major human, plant, and food fungal pathogens with nanomolar sensitivity. We further optimized a one-step rapid dipstick prototype that can be used in complex samples, including blood, urine, and soil. This modular biosensor can be economically produced at large scale, is not reliant on cold-chain storage, can be detected without additional equipment, and is thus a compelling platform scalable to global surveillance of pathogens.

Original languageEnglish
Article numbere1603221
Number of pages9
JournalScience Advances
Issue number6
Publication statusPublished - Jun-2017
Externally publishedYes

Download statistics

No data available

ID: 86478980