Cord blood from a single donor is used to positively select CD34+ cells using an immunomagnetic labeling system. Stem/Progenitor cells have the potential to self-renew and differentiate into all the mature blood cell lineages. The cells are cryopreserved with CS10 in a cryovial. Stem cell purity is determined post thaw using a FACS assay. Cell count and viability are determined using AO/PI. Cells are collected from healthy donors following IRB protocols.Umbilical Cord Blood is a rich source of primitive CD34+ hematopoietic stem and progenitor cells reported to be more naive with a higher proliferative- engraftment and multipotent potential than those isolated from adult bone marrow. Because of these attributes- cord blood can be a great tool for applications where bypassing HLA mismatch is required.AllCells offers cryopreserved cord blood CD34+ from both single cord or multiple/mixed cord donor samples.