PBMCs
Frozen stock human PBMCs: high-viability cells processed and stored within 5 hours of blood collection, with high post-thaw viability. Search and reserve in real time.
Research Donors · Part of Europa Biosite
Research Donors
Providing you with the right sample for your research: PBMCs, Leukopaks, Immune Cells and Human Biofluids.
Krishgen Biosystems, in partnership with Research Donors (RD), part of Europa Biosite, exclusively brings a comprehensive portfolio of high-quality human biological samples to researchers across India. With access to a large and diverse donor pool, Research Donors offers a wide range of products, including PBMCs, Leukopaks, Buffy Coats, Isolated Immune Cells, CD34+ Cells, Human Serum, Plasma and Whole Blood. These samples support advanced research in Cell and Gene Therapy (CGT), CAR-T and CAR-NK research, immunology, cell biology, assay development, diagnostics and drug discovery. Samples are collected in the UK at an HTA-licensed, ISO 9001:2015-certified facility, with appropriate ethics approval and comprehensive donor consent. Through this partnership, Krishgen Biosystems provides Indian researchers with exclusive access to Research Donors' specialised sample portfolio, along with support for customised donor and sample sourcing requirements.
Featured Products
Leukopaks
Highly concentrated PBMCs from a single donor, at least 10 billion total nucleated cells. Full, half or quarter bags, or fractions; chilled, ambient or rate-controlled frozen.
Buffy Coats
Single or pooled buffy coat, supplied chilled, ambient or frozen.
Isolated Immune Cells
Characterised monocytes, B cells, NK cells and T cells, isolated from Leukopaks by negative immunomagnetic separation and frozen in CryoStor CS10.
Normal Human Serum
Serum prepared by the off-the-clot method, single or pooled; chilled, ambient or frozen.
Normal Human Plasma
EDTA, heparin and sodium citrate plasma, with other anticoagulant formats subject to availability. Single or pooled.
Custom Sourcing
Custom Sample Collection, Testing & Processing
Your research requirements, our custom sourcing solutions. Share the sample type, donor criteria, disease condition (if applicable), anticoagulant, quantity and pack size, processing or isolation needs and your research application, and we will check availability with Research Donors.
Custom sourcing can support
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Specific donor demographics and inclusion/exclusion criteria
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Normal and disease-state human samples
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Individual donor and pooled samples
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Custom sample volumes and pack sizes
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Specific anticoagulants and collection formats
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Custom processing and sample preparation
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Specialised immune cell isolation
Applications
Research Applications
Supports
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Immunology and immune profiling
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Cytokine and biomarker research
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ELISA and immunoassay development
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Cell-based assay development
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Flow cytometry and cell characterisation
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Cell therapy and immunotherapy research
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Drug discovery and preclinical research
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Diagnostic assay development and validation
Why Krishgen
Why Work with Krishgen for Biospecimens?
Cold-Chain Import Expertise
23 years of expertise importing cold-chain reagents into India.
Pricing & Availability
Competitive pricing and in-stock availability of Normal-State Biofluids.
Regulatory Documentation
Expertise in managing documentation from a regulatory point of view for end use.
Bulk & Custom Biofluids
Bulk and Custom Biofluids available.
Current Offer
KEYS 2026: Research Donors Introductory Offer
40% off Research Donors PBMCs
A flat 40% off the Research Donors (PBMCs) list price. Valid 1 October to 15 December 2026.
Learn More
About the Partner
About Research Donors
Research Donors, part of Europa Biosite, collects, processes and delivers human blood products and biospecimens that meet each project's needs: the right donor, the right sample, at the right time. Its dedicated blood collection facility and processing laboratory in London holds Research Ethics (REC) approval as a Research Tissue Bank and participates in the UK NEQAS quality assurance scheme. Samples are serology tested before processing and dispatch, and come with comprehensive donor information.
HTA Licensed, ISO 9001:2015
Collection in the UK in an HTA-licensed, ISO 9001:2015 certified facility.
Ethics Approval & Consent
Donors consented for biomedical research including genetic analysis, animal model and commercial research.
Large, Diverse Donor Pool
Donor recall available; select by age, sex, ethnicity, blood group, HLA type and more.
Serology Screened
Serology screening before dispatch; frozen whole blood is virus tested with a full blood count on the Certificate of Analysis.
Focus: PBMCs
Frozen Stock Human PBMCs
High-viability peripheral blood mononuclear cells, processed and stored within 5 hours of blood collection and delivered frozen worldwide. Search Research Donors' PBMC stock in real time, then select and reserve the samples that meet your research requirements.
Choose Your Donor
Choice of anticoagulant, format and volume, and donor age, sex, ethnicity, blood group and HLA type.
High Post-Thaw Viability
High post-thaw viability with minimal degradation.
Broad Consent & Donor Data
Consented for genetic, animal model and commercial research, with comprehensive donor information.
Focus: Human Biofluids
Human Serum, Plasma & Whole Blood
A comprehensive selection of human biological fluids for immunological studies, biomarker research, assay development and diagnostic applications.
Human Plasma
EDTA, heparin and sodium citrate plasma; other specialised anticoagulant formats subject to availability. Single or pooled.
Learn MoreHuman Whole Blood
In CPD blood bags or vacuum collection tubes with a wide choice of anticoagulant. Frozen whole blood is tested for viruses before release, with a full blood count on the Certificate of Analysis.
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What We Supply
Blood Components & Immune Cell Products
Specialised human blood-derived components and immune cell populations for cellular research, immunology, cell therapy and drug discovery.
Peripheral Blood Mononuclear Cells (PBMCs)
Fresh and frozen; processed within 5 hours of collection.
Learn MoreLeukopaks
At least 10 billion total nucleated cells from a single donor; full, half, quarter or fraction sizes.
Learn MoreIsolated Immune Cells
Monocytes, B cells, NK cells and T cells by negative immunomagnetic separation.
Learn MoreWhole Blood
In CPD blood bags or vacuum collection tubes with a wide choice of anticoagulant; tested for viruses before release.
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Downloads
Research Donors Flyer
FAQ
Frequently Asked Questions
What does Research Donors supply?
PBMCs, Leukopaks, Buffy Coat, Isolated Immune Cells, CD34+ Cells and Red Blood Cells, plus Human Biofluids: Serum, Plasma and Whole Blood.
How quickly are PBMCs processed, and can I choose specific donors?
PBMCs are processed and stored within 5 hours of blood collection. You can search frozen stock in real time and choose by anticoagulant, format, volume, and donor age, sex, ethnicity, blood group and HLA type.
Which plasma formats are available?
EDTA, heparin and sodium citrate plasma, with other specialised anticoagulant formats subject to availability, as single-donor or pooled samples.
Where and how are the samples collected?
In the UK, in an HTA-licensed, ISO 9001:2015 certified facility, under ethics approval with donor consent for biomedical research including genetic analysis and commercial research. Samples are serology screened before dispatch.
Can you arrange custom collections?
Yes: specific donor demographics and inclusion/exclusion criteria, normal and disease-state samples, individual or pooled donors, custom volumes, anticoagulants, processing and immune cell isolation. Donor recall is also available.
Can these samples be used clinically?
No. Research Donors biospecimens are for biomedical research use only, not for clinical or diagnostic use.
How do I order Research Donors products in India?
Research Donors is exclusively available in India via Krishgen Biosystems. Contact us at kbiinfo@krishgen.com or (022) 4919 8700 for availability, technical specifications and quotations.