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​Critical X

Critical X


Our team is highly experienced in classical and advanced immunohistochemical and in situ hybridization methods on cells and tissues as well as single target and multiplexed IF/FISH techniques with a particular emphasis on FFPE material.  Very few laboratories have our depth of experience in these advanced techniques and process controls.



Our proprietary Flex-Array technology supports a flexible and cost-effective portfolio of multiplexed multi-modal applications.

These applications are all designed specifically for intact FFPE material with ELISA-like process controls from sample preparation through testing and data analytics.  


​​Advanced in situ detection methods  
Critical X is your source for tissue-based assay development, sample processing, testing, and pathology consultation services for basic and clinical research.  See below for a high level summary of technologies and feel free to reach out to us to learn more...

Tissue study design support and technical consulting
After initial consultation, our team will work with you to create a project proposal that will define our scope and expected outcomes for your project.  We then get to work to plan and work side-by-side with your team where necessary to achieve your goals.  We do this by defining clear targets, expectations and controls from the start and after that, it is about accountable execution on quality and agreed upon turn-around-times.

What we offer...

  • ​End–to-end study design and engagement by our expert scientific and technical team.
  • Unmatched expertise in Formalin-Fixed Paraffin Embedded (FFPE) Cells and Tissues
  • Fast Turn-Around-Times
  • Support for human and/or animal studies.
  • Assay development. 
  • Multiplexed fluorescent assays.
  • Contract or fee-for-service Technical-Only options.
  • Facilitated logistical support.
  • A secure access portal for requests, reference documents, and data/report delivery.​​