Fresh human leukopaks

We provide researchers with fresh human leukopaks within 24 hours after collection, in partnership with Research Donors.

Our fresh human leukopaks are a source of highly concentrated peripheral blood mononuclear cells (PBMC) from a single donor, with a range of sizes available depending on your requirements. Collections are tailored to each researchers' specific needs, so the choice of volume, shipment temperature and blood group is yours.

Our fresh leukopaks are ideal for applications such cell therapy research (e.g. CAR-T), toxicology studies and high-throughput drug screening, due to their highly concentrated cell counts.

We ensure that customers receive a fresh leukopak from the ideal donor for their research, delivered on-time to their location wherever it is throughout Europe. Fresh leukopaks delivered in this timeframe exhibit very high cell viability and functionality in downstream applications.

  • Delivery within 24 hours after collection throughout Europe
  • Donors meeting your exact requirements
  • Easy to schedule with our dedicated customer services team

Benefits of using the fresh leukopaks

  • Specific specimen choice. Choose sex, age, HPL-Type  and much more for your sample donor.
  • Recall on donor and work with the same sample

More benefits:

  • 10 billion total nucleated cells per donor on average from a full leukopak
  • Delivery within 24 hours after collection
  • Fresh leukopaks collected to your exact research requirements
  • High-viability PBMCs with minimal degradation
  • Comprehensive donor information provided, including full blood counts
  • Collected at an HTA-licensed, ISO 9001 2015 certified facility
  • Samples fully consented including for genetic analysis, animal models and commercial research purposes
  • Large donor pool
  • Available in full, half and quarter bags or 5-15 ml (500 million TNCs) sizes
  • Donors pre-screened for HIV, HBV, HCV, Syphilis, HTLV I and HTLV II

Frozen Human Leukopaks

Our leukopaks are also available in a frozen format.

Our frozen leukopaks are cryopreserved using a sophisticated controlled rate freezing device within a few hours of donation.

We use CryoStor CS10® to prepare and preserve our frozen leukopaks for ultra low temperature environments (–80 to –196 °C). The CryoStor media provides a safe, protective environment for cells during the freezing, storage, and thawing process. By modulating the cellular biochemical response to the cryopreservation process, CytoStor provides enhanced cell viability and functionality, while eliminating the need to include serum, proteins, or high levels of cytotoxic agents. 

Frozen leukopaks are available as full, half or quarter packs, and can be shipped globally in dry ice. 


We have an inventory of frozen leukopaks which customers are able to search in order to select a pre-collected leukopaks ready for immediate shipping.

Frozen specimens on stock - Next business day delivery

Research Donors' frozen biospecimens are well preserved and stored without compromising their quality. Advantages of using frozen biospecimens include long-term storage, reduced variability, and the ability to conduct experiments at a convenient time.

Search the catalogue and use the extensive filter options to find your specifc specimen:

Catalouge

Request a Quote for Biospecimens