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Flow cytometry is a technology that discriminates between particles, usually different types of cells, using multiple physical characteristics. The particles flow through a beam of light which is diverted slightly depending on the density, granularity and size of each particle. Alternatively, fluorescence labels can be attached to a specific cell type within a mixed population to permit identification.

Using this technology, we can offer bespoke project design and implementation services to assess pharmaceuticals and dietary supplement activity, including:

  • probiotics
  • antibiotics
  • prebiotics
  • proteins, fibres and carbohydrates.


Typical projects assess the effects of pharmaceuticals and dietary supplements on major bacterial gut populations and functionally, on metabolite, ammonia, acid and gas production.

To find out more about flow cytometry, please contact Dr Marie Lewis in the Department of Food and Nutritional Sciences.