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Pioneering instrumentation
for the bio-sciences sector

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The leading colony and spheroid counter for cancer biologists

  • Dedicated colony counter for processing tumour
    colony forming cell assays
  • All-in-one solution for imaging, counting and characterizing colonies
  • Huge throughput advantages
  • Objective, unbiased 'machine' counting
  • Export colony numbers and colony size parameters

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“I have used the GelCount for over 6 months.  The machine reduces the analysis time considerably when compared to manual counting, and the results are similar between them. It has also the added bonus of reducing the subjectivity that could arise by manual counting, making the clonogenics more reliable.  In addition, Oxford Optronix provides very good technical support.  Overall, I would recommend this product as it reduces the time and increases the confidence in your results.”

Dr. Natividad Gomez-Roman, Institute of Cancer Sciences, University of Glasgow, Beatson Institute for Cancer Research, Glasgow, UK

  • Overview
  • Key Benefits
  • Rationale
  • Screen Shots
  • Testimonials
  • Citations
  • Specifications
  • FAQ
  • Accessories


With over 200 peer-reviewed citations the GelCount is a worldwide ‘gold standard’ in cancer biology colony/spheroid counting.

GelCount™ is an integrated colony counter for processing tumour colony forming assays conceived to rapidly and accurately count and size mammalian cell colonies. Colonies can be adherent (usually stained), or non-adherent, suspended either in liquid medium (spheroids) or in 3-D semi-solid matrices (e.g. soft agar or methylcellulose). Non-adherent cell colonies of this type do not typically require staining. 

GelCount™ permits the user to go from colony samples to colony counts and additional statistics such as colony size information at the click of a button. Colonies are imaged, images transferred to a PC, processed and characterized and the data collated/exported from within a single, integrated hardware/software platform. Gone is the need to manually count colonies or the unsatisfactory alternative of imaging samples on one device, then transferring these to and processing them on an independent image analysis package.

Furthermore, the integrated approach also permits the archiving to disk of raw colony images, in support of full-functionality ‘off-line’ processing/re-processing even where the original samples are no longer available.

GelCount™ not only dramatically enhances throughput but its inherent objectivity and consistency eliminates human error due to subjective interpretation, bias or plain fatigue – a particularly acute problem when manually counting under a microscope. 

Using high depth-of-field scanning technology capable of single-pass, high-resolution imaging, combined with a convenient sample-loading mechanism and a dedicated image processing algorithm developed at Oxford Optronix, GelCount™ provides unsurpassed colony detection performance including resolution of overlapping colonies and differentiation of real colonies from debris or other artefacts.

The intuitive software provides extensive control over the inclusion or exclusion of colonies based on colony size and colony shape-related parameters, as well as over general object detection sensitivity.  

Made in Britain