Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk

Ana Carolina Oliveira Fernandes, Carla M. Duarte, Filipe A. Cardoso, Ricardo Bexiga, Susana Cardoso, Paulo P. Freitas

Research output: Contribution to journalJournal articleResearchpeer-review


Flow cytometers have been optimized for use in portable platforms, where cell separation, identification and counting can be achieved in a compact and modular format. This feature can be combined with magnetic detection, where magnetoresistive sensors can be integrated within microfluidic channels to detect magnetically labelled cells. This work describes a platform for in-flow detection of magnetically labelled cells with a magneto-resistive based cell cytometer. In particular, we present an example for the validation of the platform as a magnetic counter that identifies and quantifies Streptococcus agalactiae in milk.
Original languageEnglish
Pages (from-to)15496-15524
Publication statusPublished - 2014
Externally publishedYes


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  • cytometer
  • microfluidic
  • magnetoresistive sensor
  • milk
  • Streptococcus agalactiae
  • LCC:Technology (General)
  • LCC:T1-995
  • LCC:Technology
  • LCC:T
  • LCC:Analytical chemistry
  • LCC:QD71-142
  • LCC:Chemistry
  • LCC:QD1-999
  • LCC:Science
  • LCC:Q


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