Chemicon Advanced Tissue Arrayer ATA100 allows you to create customized arrays of multiple tissue specimens on a single histologic slide. This instrument allows to selectively remove core tissue samples from paraffin blocks and arrange those tissue samples into an array within a recipient paraffin block. The newly formed tissue array paraffin block is then ready for further histology technique processing. Sections can be stained with the same protocol to avoid experimental variability and technical artefacts. This type of sample preparation is very useful in cancer research, but also anytime a high-throughput morphology or molecular analysis is needed. Tissue microarrays (TMA) in combination with immunohistochemistry has been used to study and validate cancer biomarkers in large numbers of samples in defined cancer patient cohorts.