BioChain's tissue products are based on the sample repository network established following the IRB-approved ethical standard and procedures. BioChain's formalin fixed paraffin embedded (FFPE) tissue section line encompasses a large selection of tissue sections which are suitable for immunohistochemistry and in situ hybridization assays. The tissue sections are approximately 5 um thick. For those customers who want to perform FFPE DNA and RNA isolation, BioChain can provide tissue section slices in tubes instead of mounting them on glass slides.