Human Plasma — Single Donor
Single-donor human plasma from certified EU blood banks — individually screened, fully traceable to the donor unit. For disease-state research, reference panels, IVD validation and applications where pooled plasma introduces unacceptable variability. EDTA, heparin or citrate. No minimum order.
Full Donor Traceability
Every unit traceable to individual donor. Donation ID, collection date, blood group, age range and gender documented per unit.
Per-Unit Viral Screening
HIV-1/2, HBsAg, anti-HCV, syphilis tested per individual unit — not per pool. NAT screening (HIV-1, HCV, HBV) available on request.
Disease-State on Request
Plasma from donors with defined disease states — sepsis, DKA, COVID-19, COPD, liver disease and more — available on request via our donor network.
No Minimum Order
From single units for feasibility to large cohort panels. Same documentation and traceability at every scale.
Single Donor vs. Pooled — which do you need?
Available Anticoagulant Formats
| Anticoagulant | Mechanism | Best For | Cell Culture Note |
|---|---|---|---|
| EDTA (K2/K3) | Irreversible Ca²⁺/Mg²⁺ chelation | Haematology, immunoassay, general IVD, proteomics | Can be overcome by media cations at high plasma % — use with caution at ≥20% v/v |
| Heparin (Li/Na) | Thrombin inhibition — media-independent | Cell culture stimulus models, translational disease research, endothelial assays | Preferred for cell culture at ≥20% v/v — anticoagulation maintained independently of media composition. Min. 0.25 IU/mL. |
| Citrate (3.2%) | Reversible Ca²⁺ chelation | Coagulation studies, platelet function, PRP preparation | Coagulation risk at high % v/v in cell culture — use at low concentrations or where coagulation factors are the study target |
| ACD-A | Citrate + dextrose | PBMC isolation, platelet preparation, cell therapy | Standard for leukapheresis-compatible processing. Not for routine clinical chemistry. |
Anticoagulant must be specified at order — results are not comparable across formats. See our methodological guide on plasma in cell culture for anticoagulant selection guidance.
Why single-donor plasma — and when does it matter?
Pooled plasma from multiple donors averages out individual variability — which is exactly what you want for IVD calibrators and assay controls where lot-to-lot consistency is the priority. But for disease-state research, reference panel development and studies examining inter-individual biological differences, pooling destroys the very signal you are trying to measure.
Single-donor plasma preserves the biological signature of each individual unit. The donor's disease status, age, sex, medication history and metabolic state are all reflected in the plasma proteome, cytokine profile and coagulation factor composition. This is the format used in the translational disease models described by Cela et al. (2025, PMC11864229) and across the sepsis, COVID-19, DKA and COPD literature.
SeamlessBio supplies single-donor plasma with full donor traceability and per-unit viral screening — the documentation standard required for use in IVD technical files and translational research publications.
Key applications
- Disease-state cell culture stimulus — sepsis, COVID-19, DKA, COPD, liver disease
- Reference panel development for IVD assay validation
- Inter-individual variability studies — age, sex, BMI, medication effects
- Pharmacokinetic and drug-protein binding studies
- Translational research — bridging in vitro findings to clinical data
- Biomarker discovery — individual donor proteomics and metabolomics
- Residual disease monitoring — longitudinal sample series from same donor
- Positive control panels for infectious disease IVD assays
- NAT and serology panel development
- Specificity and cross-reactivity testing with defined donor characteristics
Product Specifications
| Product type | Human Plasma — Single Donor, individually screened |
| Origin | EU certified blood banks (Germany, Austria, Czech Republic, Poland) |
| Donor traceability | Full — donation ID, collection date, blood group, age range, gender per unit |
| Viral screening | Per unit: HIV-1/2, HBsAg, anti-HCV, Syphilis. NAT (HIV-1 RNA, HCV RNA, HBV DNA) on request |
| Anticoagulants | EDTA (K2/K3) · Heparin (Li/Na) · Sodium Citrate 3.2% · ACD-A — specify at order |
| Blood group | Mixed (standard) · A · B · AB · O — specify on request |
| Donor gender | Mixed (standard) · Male only · Female only — specify on request |
| Donor age range | 18–65 years (standard) · Narrower ranges on request |
| Disease-state plasma | Available on request — contact info@seamlessbio.de with indication |
| Volume per unit | Typically 5–10 mL per donor unit · Larger volumes via apheresis on request |
| Pack formats | Individual units · Matched cohort sets · Custom panel configurations |
| Storage | −20°C (standard) · −80°C for long-term storage on request |
| Shelf life | 24 months from collection date at −20°C |
| Documentation | CoA · CoO · per-unit donor record · viral screening report · SDS |
| Minimum order | No minimum order quantity |
| Lead time | Standard: 5–10 business days · Disease-state / custom cohort: on request |
Frequently Asked Questions
What is the difference between single-donor and pooled plasma?
Single-donor plasma comes from one individual unit with full traceability — donor ID, blood group, age, sex and viral screening per unit. Pooled plasma combines material from multiple donors, averaging out individual variability. Single-donor is required for disease-state research, inter-individual studies and reference panels. Pooled is preferred for IVD calibrators and assay controls where consistency across large volumes is the priority.
Which anticoagulant should I use for cell culture experiments?
Heparin plasma is the recommended choice for cell culture experiments using plasma as a stimulus at ≥20% v/v. Heparin inhibits thrombin independently of the culture medium composition — EDTA and citrate anticoagulation can be overcome by divalent cations in standard media. Minimum 0.25 IU/mL heparin to prevent coagulation while minimising off-target effects on cell adhesion and signalling.
Can I order disease-state plasma from specific patient populations?
Yes. SeamlessBio can source plasma from donors with defined disease states via our EU donor network. Common requests include sepsis, COVID-19 (acute and convalescent), COPD, diabetic ketoacidosis, liver disease (NAFLD, ESLD, HCV) and autoimmune conditions. Contact info@seamlessbio.de with your required disease indication, donor characteristics and volume — we confirm availability and lead time.
Can I specify donor characteristics such as blood group, age or sex?
Yes. Blood group (A, B, AB, O), donor sex (male, female) and age range can be specified. Matching donors by age and sex is recommended for disease-state experiments to reduce confounding variables — documented in the translational research literature as a critical methodological consideration (Cela et al., 2025).
Is NAT screening available?
Yes — NAT (nucleic acid amplification testing) for HIV-1 RNA, HCV RNA and HBV DNA is available on request. Standard viral screening covers serology per unit (HIV-1/2, HBsAg, anti-HCV, Syphilis). For IVD validation requiring NAT-screened material, specify at order.
Can I get longitudinal samples from the same donor?
Longitudinal sample series (multiple time points from the same donor) are available on request for monitoring studies — residual disease, treatment response, recovery. Contact info@seamlessbio.de with your study design and sampling schedule.
Request Single Donor Plasma
Specify anticoagulant, donor characteristics, volume and any disease-state requirements — we respond within 48 hours. Free test units available on request.
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