Human Serum-Archiv - SeamlessBio Expert for biological materials for pharma, vaccines and research organizations Mon, 21 Sep 2026 18:38:38 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.2 https://seamlessbio.de/wp-content/uploads/2026/04/134428046-1-150x150.png Human Serum-Archiv - SeamlessBio 32 32 Human Serum Type AB Male | EU/US Origin | sterile https://seamlessbio.de/product/human-serum-type-ab-male-eu-us-origin-sterile/ Wed, 16 Sep 2026 11:10:24 +0000 https://seamlessbio.de/produkt/human-serum-type-ab-male-eu-us-origin-sterile/ Human Serum Type AB Male | EU/US Origin | sterile. Available in 50mL, 100mL, 500mL, 50mL, 50mL. Price on request — contact our team for availability, batch documentation and delivery.

Der Beitrag Human Serum Type AB Male | EU/US Origin | sterile erschien zuerst auf SeamlessBio.

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Product Overview

SeamlessBio Human Serum – Type AB (Male Donor) is obtained from certified donor centers in the European Union and the United States, collected under controlled and traceable conditions.
Each batch is sterile filtered at 0.2 µm, heat inactivated or gamma irradiated, ensuring the highest level of purity and biosafety for cell culture and diagnostic use.

Type AB serum is free of anti-A and anti-B antibodies, making it ideal for applications where cross-reactivity must be minimized — such as immunology, cell therapy, antibody production, and diagnostic assays.
This physiologically balanced serum provides consistent performance and reproducibility across experiments. Learn more about what Human AB Serum is and how it is used in cell culture.

Human Serum – Type AB: Quality and Applications

  • Origin: EU or US (certified, traceable donor centers)
  • Donor Type: Type AB (Male) – no anti-A or anti-B antibodies
  • Processing:
    – Heat inactivated (56 °C, 30 min)
    – Gamma irradiated for viral and microbial inactivation
  • Filtration: 0.2 µm sterile filtered
  • Fully documented and batch-tested for pH, osmolality, protein concentration, and sterility
  • Standard volumes: 50 mL, 100 mL and 500 mL (custom sizes on request)
  • Documentation: CoA, COO, MSDS available upon request

Applications

  • Human cell culture and primary cell expansion
  • Immunology and antibody development
  • Diagnostic kit formulation and validation — see our Human Biomaterials & IVD portfolio
  • Vaccine, cell therapy, and biomedical research

Additional Plasma Options

SeamlessBio also provides complementary plasma products:

  • Human Plasma Bags – available in multiple volumes and anticoagulant options (on request)
  • Disease-Specific Plasma Samples – characterized donor plasma from specific conditions, ideal for diagnostic and assay development

All materials are ethically collected, traceable, and processed under strict biosafety standards. Explore the full Human Sera, Plasma & More portfolio.

Specifications

  • Filtration: 0.2 µm sterile filtered
  • Processing: Heat inactivated or gamma irradiated
  • Storage: –20 °C (cold-chain required)
  • Documentation: CoA, COO, MSDS available

Available Formats

Format Size
Unit 50 mL / Heat Inactivated
100 mL / Heat Inactivated
500 mL / Heat Inactivated
50 mL / Native
50 mL / Gamma Irradiated
100 mL / Native
100 mL / Gamma Irradiated
500 mL / Native
500 mL / Gamma Irradiated

Key Benefits

Batch Reservation

Reserve validated lots up to 36 months for reproducible long-term workflows.

Full Documentation

CoA, BSE/TSE, sterility certificate — supplied by ISO 9001 and ISO 13485 certified partner facilities. Additional documents on request.

EU & Swiss Supply

Sourced from certified EU and Swiss partner facilities — fast delivery across EU, UK and Switzerland, full documentation included.

Frequently Asked Questions

What makes Human Serum Type AB (Male) suitable for cell culture?

Type AB serum contains no anti-A or anti-B antibodies, eliminating cross-reactivity that could interfere with cells or assays. Male donor serum is preferred because it avoids hormone variability associated with female donors. Combined with 0.2 µm sterile filtration and heat inactivation or gamma irradiation, it delivers a clean, physiologically balanced supplement for primary cell expansion and sensitive assay applications.

What is the difference between heat inactivated and gamma irradiated Human Serum?

Heat inactivation (56 °C, 30 min) destroys complement proteins, reducing non-specific activation in immunological assays. Gamma irradiation provides additional inactivation of viruses and mycoplasma while largely preserving growth factors and proteins. The choice depends on your application: heat inactivation is standard for most cell culture work, while gamma irradiation is preferred for higher biosafety requirements or GMP-adjacent processes.

Is Human Serum Type AB available in GMP-compatible quality?

SeamlessBio supplies Human Serum sourced from ISO 9001 and ISO 13485 certified partner facilities, with full batch documentation including CoA, Certificate of Origin, and BSE/TSE statements. For GMP-regulated processes, we offer batch reservation up to 36 months and can provide additional regulatory documents on request. Contact us to discuss your specific compliance requirements.

Can I reserve a specific batch of Human Serum for long-term studies?

Yes — batch reservation is available for up to 36 months. This ensures lot-to-lot consistency for longitudinal studies, regulatory submissions, or manufacturing processes that require a validated, fixed serum lot. Contact our team with your required volume and timeline and we will reserve the validated batch for your programme.

What documentation is included with Human Serum Type AB from SeamlessBio?

Every order ships with a Certificate of Analysis (CoA). Additional documentation — including BSE/TSE statement, Certificate of Origin (COO), sterility certificate, and MSDS — is available on request. All materials are sourced from certified donor centers and processed under traceable, documented conditions.

Request a Quote or Sample

48h response · EU & Swiss Supply · Batch reservation available · Full documentation

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Der Beitrag Human Serum Type AB Male | EU/US Origin | sterile erschien zuerst auf SeamlessBio.

]]> Human Serum Type AB | Mixed Donors | EU/US Origin | sterile filtered https://seamlessbio.de/product/human-serum-type-ab-mixed-donors-eu-us-origin-sterile-filtered/ Wed, 16 Sep 2026 11:10:24 +0000 https://seamlessbio.de/produkt/human-serum-type-ab-mixed-donors-eu-us-origin-sterile-filtered/ Human Serum Type AB | Mixed Donors | EU/US Origin | sterile filtered. Available in 50mL, 100mL. Price on request — contact our team for availability, batch documentation and delivery.

Der Beitrag Human Serum Type AB | Mixed Donors | EU/US Origin | sterile filtered erschien zuerst auf SeamlessBio.

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Der Beitrag Human Serum Type AB | Mixed Donors | EU/US Origin | sterile filtered erschien zuerst auf SeamlessBio.

]]> Human Serum Type AB Male, Off-the-Clot | Xeno-Free | EU Origin https://seamlessbio.de/product/human-serum-type-ab-male-off-the-clot-xeno-free-eu-origin/ Wed, 16 Sep 2026 11:10:23 +0000 https://seamlessbio.de/produkt/human-serum-type-ab-male-off-the-clot-xeno-free-eu-origin/ Human Serum Type AB Male, Off-the-Clot | Xeno-Free | EU Origin. Available in 50mL, 100mL. Price on request — contact our team for availability, batch documentation and delivery.

Der Beitrag Human Serum Type AB Male, Off-the-Clot | Xeno-Free | EU Origin erschien zuerst auf SeamlessBio.

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Product Overview

SeamlessBio Human Serum Type AB, Male Donors, Off-the-Clot is collected exclusively from healthy male AB donors at FDA-registered and EMA-compliant collection centres in the EU and USA. Natural coagulation without anticoagulants (off-the-clot) preserves the full native spectrum of growth factors — PDGF, EGF, TGF-β, IGF-1 — released during platelet degranulation, delivering the highest physiological potency available in human serum.

As a xeno-free, human-specific alternative to FBS, this serum is the preferred ancillary material for CAR-T expansion, NK cell therapy, MSC culture, ATMP manufacturing, vaccine development, and IVD assay development. Pooled from 200–250 donors per lot for maximum batch consistency. Explore the full Human Sera & Biomaterials Portfolio or read our guide on What is Human AB Serum?

Technical Specifications

Parameter Specification
Product type Human serum, off-the-clot (OTC)
Blood group AB — no anti-A or anti-B antibodies
Donors Male only — eliminates hormonal variability and TRALI risk
Origin EU and/or USA (per lot)
Collection centres FDA-registered / EMA-compliant
Pool size 200–250 donors per lot
Sterility 0.1–0.2 µm sterile filtered
Mycoplasma Negative (tested)
Virus testing HIV-1/2 Ag/Ab, HBsAg, anti-HCV, syphilis, NAT
Heat inactivation Available on request (56 °C, 30 min)
Gamma irradiation Available on request (25–45 kGy)
Storage –20 °C (long-term); +2 to +8 °C after thawing (stable 30 days)
Formats 50 mL, 100 mL; bulk on request
Regulatory Research Use Only (RUO); GMP documentation package on request

Applications

Application Role of Human Serum AB (Male, OTC)
CAR-T cell expansion & activation Xeno-free, growth factor-rich supplement for ex vivo T cell expansion — replaces FBS without bovine cross-reactivities. Compatible with GMP-adjacent protocols under Ph. Eur. 5.2.12.
NK cell expansion Supports feeder-free NK cell expansion in haematopoietic systems — high native growth factor content (PDGF, EGF, TGF-β, IGF-1) drives proliferation without xenogenic contamination.
MSC culture (adipose, bone marrow) Human-specific supplement for mesenchymal stem cell isolation, expansion, and characterisation — eliminates FBS-related lot variability in MSC proliferation and differentiation assays.
ATMP manufacturing (ancillary material) Lot-specific documentation compliant with Ph. Eur. 5.2.12 and EudraLex Vol. 4, Part IV; GMP documentation package available on request.
Vaccine development Human-specific growth factors and antibody-free AB matrix for neutralisation assays, immune cell culture, and human pathogen models (influenza, RSV, SARS-CoV-2).
Tissue engineering Xeno-free supplement for primary keratinocytes, fibroblasts, chondrocytes, and limbal stem cells in skin, cartilage, and corneal tissue constructs.
IVD assay development Physiologically relevant sample matrix for ELISA kits, immunoassays, and lateral flow development — AB blood group eliminates anti-A/anti-B interference; ISO 13485 / IVDR 2017/746 documentation available.
Malaria & infectious disease research Standard supplement for Plasmodium falciparum culture — AB specificity prevents blood-group-specific lysis; complete virus testing protocols for BSL-2 handling.

Off-the-Clot vs. Plasma-Derived Human Serum

Property Off-the-Clot (this product) Plasma-Derived
Growth factors ✔ High — native platelet degranulation (PDGF, EGF, TGF-β, IGF-1) Moderate — CaCl₂ conversion
Best for CAR-T, NK cells, MSC, tissue engineering Assay development, diagnostics
Donors per lot 200–250 (high consistency) Variable
Complement activity Present (heat inactivation available) Present (heat inactivation available)

Why Male Donors Only?

Female donors have cyclically fluctuating oestradiol and progesterone levels that influence cell proliferation, differentiation, and gene expression — introducing confounding variability in reproducibility-critical workflows. Exclusively male donor pools eliminate this hormonal variability. Additionally, previously pregnant female donors may carry anti-MHC antibodies (TRALI risk), which are absent in male-only pools.

Documentation Included Per Lot

  • Certificate of Analysis (CoA) — lot-specific
  • Virus testing protocols (HIV-1/2, HBV, HCV, syphilis, NAT)
  • Sterility and mycoplasma test protocol
  • Origin and collection centre certificate
  • Safety Data Sheet (SDS)
  • GMP documentation package (CoA, virus validation reports, donor certificates, Ph. Eur. 5.2.12 compliance declaration) — on request

Available Formats

Format Size
Bottle 50 mL
Bottle 100 mL
Bulk On request from 1 L

Key Benefits

Batch Reservation

Reserve validated lots up to 36 months for reproducible long-term workflows.

Full Documentation

CoA, virus testing protocols, sterility and mycoplasma data — from ISO 9001 and ISO 13485 certified partner facilities. GMP package on request.

EU & Swiss Supply

Sourced from certified EU and Swiss partner facilities — fast cold-chain delivery across EU, UK and Switzerland.

Frequently Asked Questions

What is Human Serum Type AB Male Off-the-Clot and why is it preferred over FBS for cell therapy?

Human Serum Type AB Male Off-the-Clot is collected from healthy male AB donors via natural coagulation without anticoagulants, preserving the full native platelet-released growth factor spectrum (PDGF, EGF, TGF-β, IGF-1). Unlike FBS, it is xeno-free — no bovine antigens — making it compliant with EMA/410/01 for human cell culture. The AB blood group eliminates anti-A/anti-B antibody interference, and male-only donors remove hormonal variability and TRALI risk. For CAR-T, NK cell, and MSC expansion, this is the physiologically correct and regulatory-preferred serum supplement.

Is this product suitable for GMP ATMP manufacturing?

The standard product is supplied as RUO (Research Use Only). For GMP applications — Phase I/II trials, ATMP manufacturing under EU Regulation 1394/2007 — a GMP documentation package is available on request, including lot-specific CoA, virus validation reports, collection centre certificates, and a Ph. Eur. 5.2.12 compliance declaration. Contact our team to discuss your specific documentation requirements.

What concentration is recommended and how do I switch from FBS?

Standard working concentration is 5–20% in cell culture medium. CAR-T and NK cell protocols typically use 2–10%. For adaptation from FBS: Week 1 — 5% FBS + 5% Human Serum AB; Week 2 onwards — 100% Human Serum AB. Stepwise reduction minimises adaptation stress and maintains viability above 90% throughout transition.

Is heat inactivation or gamma irradiation available?

Yes — both options are available on request. Heat inactivation (56 °C, 30 min) inactivates complement for complement-sensitive applications such as haematopoietic cell culture and immunoassays. Gamma irradiation (25–45 kGy) provides maximum viral safety for ATMP processes. Both treatments are performed at certified facilities and documented in the lot CoA.

How should the serum be stored after thawing, and can it be refrozen?

After thawing, store at +2 to +8 °C. Thawed serum is stable for 30 days. Do not refreeze — repeated freeze-thaw cycles degrade growth factors and reduce biological activity. We recommend aliquoting into single-use volumes before first use. Turbidity after thawing is normal (lipid precipitation) and does not affect quality; it clears on warming to room temperature.

Request a Quote, Sample, or GMP Documentation

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Human Sera Portfolio →

Der Beitrag Human Serum Type AB Male, Off-the-Clot | Xeno-Free | EU Origin erschien zuerst auf SeamlessBio.

]]> Human Serum Off-the-Clot | EU/US Origin | sterile filtered https://seamlessbio.de/product/human-serum-off-the-clot-eu-us-origin-sterile-filtered/ Wed, 16 Sep 2026 11:10:23 +0000 https://seamlessbio.de/produkt/human-serum-off-the-clot-eu-us-origin-sterile-filtered/ Human Serum Off-the-Clot | EU/US Origin | sterile filtered. Available in 50mL, 100mL. Price on request — contact our team for availability, batch documentation and delivery.

Der Beitrag Human Serum Off-the-Clot | EU/US Origin | sterile filtered erschien zuerst auf SeamlessBio.

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Product Overview

SeamlessBio Human Serum Off-the-Clot (OTC) is sourced from healthy, certified donors at regulated and traceable collection centres in the EU and USA. Collected without anticoagulants, the serum undergoes natural clot formation before separation and 0.2 µm sterile filtration — preserving a physiologically active protein, hormone, and growth factor composition for reliable performance in cell culture, diagnostics, and immunological research.

This product is available exclusively as heat inactivated (56 °C, 30 min) or gamma irradiated — providing defined biosafety for sensitive applications. For the highest-specification human serum with male-only donors and AB blood group, see Human Serum Type AB Male Off-the-Clot. Explore the full Human Sera & Biomaterials Portfolio.

Technical Specifications

Parameter Specification
Product type Human serum, off-the-clot (OTC)
Origin EU and/or USA — certified, traceable donor centres
Collection Without anticoagulants — natural coagulation
Filtration 0.2 µm sterile filtered
Processing Heat inactivated (56 °C, 30 min) or gamma irradiated — specify at order
Batch testing pH, osmolality, total protein, sterility
Storage –20 °C (cold-chain required); +2 to +8 °C after thawing
Formats 50 mL, 100 mL; larger volumes on request
Regulatory Research Use Only (RUO). CoA, CoO and SDS on request.

Applications

Application Role of Human Serum OTC
Human & primary cell culture Xeno-free supplement for human cell lines, primary cells, and co-culture systems — eliminates bovine cross-reactivities associated with FBS.
Immunoassays & antibody production Human-specific matrix for ELISA development, immunoprecipitation, and hybridoma culture where human-origin serum components are required.
Diagnostic development & QC testing Physiologically relevant sample matrix for IVD kit development, lot release testing, and quality control in diagnostic workflows.
Cell therapy & immunological research Serum-free or xeno-free supplement for immunological studies, complement-sensitive assays, and cell therapy process development.

Heat Inactivation vs. Gamma Irradiation

Parameter Heat Inactivated (56 °C, 30 min) Gamma Irradiated (25–45 kGy)
Complement inactivation ✔ Complete Partial
Growth factor retention Moderate reduction ✔ Better retained
Viral safety Partial inactivation ✔ Enhanced viral clearance
Best for Complement-sensitive assays, immunology ATMP process development, high biosafety requirements

SeamlessBio Human Serum Portfolio

Product Blood Group Donors Best For
Human Serum AB Male Off-the-Clot AB Male only CAR-T, NK, MSC, ATMP, IVD
Human Serum Off-the-Clot (this product) Mixed Mixed Cell culture, diagnostics, immunology

Available Formats

Format Size
Bottle 50 mL
Bottle 100 mL
Bulk On request

Key Benefits

Batch Reservation

Reserve validated lots up to 36 months for reproducible long-term workflows.

Full Documentation

CoA, sterility data, CoO and SDS — from ISO 9001 and ISO 13485 certified partner facilities. Additional documents on request.

EU & Swiss Supply

Sourced from certified EU and Swiss partner facilities — fast cold-chain delivery across EU, UK and Switzerland.

Frequently Asked Questions

What is Human Serum Off-the-Clot and how does it differ from plasma-derived serum?

Off-the-clot (OTC) human serum is produced by allowing whole blood to coagulate naturally without anticoagulants. During clot formation, platelets degranulate and release growth factors (PDGF, EGF, TGF-β, IGF-1) into the serum — resulting in higher native growth factor content than plasma-derived serum, which is produced by adding CaCl₂ to anticoagulated plasma. OTC serum is the physiologically more complete matrix and is preferred for cell culture, immunological studies, and applications requiring the full native protein composition of human serum.

What is the difference between heat inactivation and gamma irradiation, and which should I choose?

Heat inactivation (56 °C, 30 min) fully inactivates complement proteins — making it the standard choice for complement-sensitive applications such as immunoassays, hybridoma culture, and haematopoietic cell expansion. It reduces growth factor activity moderately. Gamma irradiation (25–45 kGy) provides enhanced viral clearance with better retention of growth factors and biological activity — preferred for high-biosafety requirements in ATMP process development or applications where complement inactivation is not needed. Specify your preferred treatment at order; both are documented in the lot CoA.

When should I choose Human Serum AB Male Off-the-Clot instead of this product?

Human Serum Type AB Male Off-the-Clot is the higher-specification variant: AB blood group eliminates anti-A/anti-B antibody interference, male-only donors remove hormonal variability (oestradiol, progesterone) and TRALI risk from anti-MHC antibodies, and the pooled lot of 200–250 donors delivers maximum batch consistency. It is the preferred choice for CAR-T, NK cell, and MSC expansion, ATMP manufacturing (Ph. Eur. 5.2.12), and IVD assay development where blood group specificity matters. This OTC product (mixed gender, mixed blood group) is well suited for general human cell culture, immunological research, and diagnostic QC where AB specification is not required.

What pack sizes are available and is batch reservation possible?

Human Serum OTC is available in 50 mL and 100 mL bottles; larger volumes are available on request. Batch reservation is available for up to 36 months — contact our team with your required volume and project timeline to hold a validated lot for your programme.

What documentation is supplied with Human Serum Off-the-Clot?

Every order includes a Certificate of Analysis (CoA) with lot-specific test results for pH, osmolality, total protein, and sterility. Additional documentation — including Certificate of Origin (CoO), Safety Data Sheet (SDS), and processing records for heat inactivation or gamma irradiation — is available on request. Products are handled at ISO 9001 and ISO 13485 certified partner facilities.

Request a Quote or Sample

48h response · EU & Swiss Supply · Batch reservation available · Full documentation

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Human Sera Portfolio →

Der Beitrag Human Serum Off-the-Clot | EU/US Origin | sterile filtered erschien zuerst auf SeamlessBio.

]]> Human Serum Heat Inactivated | Mixed Donors | EU/US Origin | sterile filtered https://seamlessbio.de/product/human-serum-heat-inactivated-mixed-donors-eu-us-origin-sterile-filtered/ Wed, 16 Sep 2026 11:10:12 +0000 https://seamlessbio.de/produkt/human-serum-heat-inactivated-mixed-donors-eu-us-origin-sterile-filtered/ Human Serum Heat Inactivated | Mixed Donors | EU/US Origin | sterile filtered. Available in 100mL, 500mL. Price on request — contact our team for availability, batch documentation and delivery.

Der Beitrag Human Serum Heat Inactivated | Mixed Donors | EU/US Origin | sterile filtered erschien zuerst auf SeamlessBio.

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Product Overview

SeamlessBio Human Serum — Heat Inactivated, Mixed Gender Donors, EU/US Origin is a pooled human serum collected from male and female donors at certified EU and US donor centers, heat inactivated at 56 °C for 30 minutes, and sterile filtered at 0.2 µm. Heat inactivation eliminates complement proteins — the primary cause of non-specific cytotoxicity and interference in cell viability assays, immunological experiments, and antibody-based workflows — without altering the growth-promoting protein fraction. It is the standard format for primary human cell culture, immunoassay development, and cell therapy manufacturing.

Technical Specifications

Parameter Specification
Species / Source Human — pooled mixed gender donors (male + female)
Origin EU / US — certified, traceable donor centers
Processing Heat inactivated at 56 °C for 30 min (complement destroyed)
Filtration 0.2 µm sterile filtered
QC parameters pH, osmolality, total protein, sterility
Storage –20 °C long-term | +4 °C short-term (use within 4 weeks)
Shipping Cold-chain on dry ice
Shelf life Min. 12 months from manufacture
Formats 100 mL, 500 mL; bulk on request
Documentation CoA, Certificate of Origin (COO), SDS with every order
Regulatory Research Use Only (RUO); GMP-grade available on request

Applications

Application Protocol Note
Primary human cell culture 5–20% heat inactivated human serum in base medium Complement-free serum is essential for primary immune cells, PBMCs, T cells, NK cells, and dendritic cells — active complement causes lysis and viability loss in sensitive primary cultures
Immunoassay and ELISA development Use as matrix-matched blocking diluent or calibrator matrix Human serum matrix ensures calibrator and control signal behaviour matches patient sample — reduces matrix-effect-driven assay bias vs. animal serum alternatives
Complement-sensitive cell-based assays Substitute for standard serum as culture supplement Required for complement-dependent cytotoxicity (CDC) negative controls, viability assays, and any cell-based workflow where complement activation would confound the readout
Vaccine and biologics development Human serum as culture supplement for virus propagation and neutralization assays Human serum matrix provides physiologically relevant conditions; preferred over FBS for human-adapted virus strains and antibody neutralization titres in human serum background
Cell therapy and ATMP manufacturing Replace FBS with heat inactivated human serum in culture medium Eliminates xenogenic protein exposure for human T cell, NK cell and dendritic cell expansion — aligned with EMA guidance (EMA/410/01) for minimising animal-derived components in cell therapy manufacturing

Heat Inactivated Human Serum vs. FBS

Fetal bovine serum (FBS) contains xenogenic proteins that can trigger immune responses in human primary cells and cell therapy products. For immune cell expansion, primary human cell culture, and ATMP manufacturing, human serum eliminates this risk and provides a physiologically matched culture environment. Heat inactivation removes complement proteins present in both human serum and FBS — in human serum, this step is particularly important for primary cell applications where active human complement is directly cytotoxic. EMA guidance (EMA/410/01) explicitly recommends minimising animal-derived culture supplements in cell therapy manufacturing; heat inactivated human serum is the standard alternative.

Also Available

Available Formats

Format Size
Bottle 100 mL
Bottle 500 mL
Bulk On request

Key Benefits

Batch Reservation

Reserve validated lots up to 36 months for reproducible long-term cell culture and immunoassay workflows.

Full Documentation

CoA, Certificate of Origin and SDS — from ISO 9001 and ISO 13485 certified partner facilities. Additional documents on request.

EU & Swiss Supply

Sourced from certified EU and US donor centers — fast cold-chain delivery across EU, UK and Switzerland.

Frequently Asked Questions

What does heat inactivation of human serum do, and why is it necessary?

Heat inactivation at 56 °C for 30 minutes destroys the complement system — a set of serum proteins (C1–C9) that form membrane attack complexes on cell surfaces. In non-heat-inactivated serum, active complement can lyse cells directly or trigger inflammatory signalling cascades that confound cell viability, proliferation, and immunological assay readouts. Heat inactivation eliminates this activity without significantly affecting the albumin, transferrin, growth factors, and adhesion proteins that support cell growth. For primary human cells — particularly immune cells, PBMCs, T cells, and dendritic cells — heat inactivated serum is the standard format because active human complement is directly cytotoxic to human primary cell cultures at the serum concentrations used in standard culture protocols.

What is the difference between heat inactivated and gamma irradiated human serum?

Heat inactivation (56 °C, 30 min) selectively destroys complement proteins by thermal denaturation — it does not inactivate viruses, mycoplasma, or other pathogens, and has minimal effect on growth factors and immunoglobulins. Gamma irradiation (typically 25–40 kGy) provides broad-spectrum pathogen reduction — inactivating viruses, bacteria, mycoplasma, and prions — while preserving most serum proteins. Gamma irradiated serum carries a higher biosafety assurance and is preferred where pathogen reduction must be documented for regulatory purposes (BSL-2+ work, GMP-adjacent workflows, or serum used in combination with live attenuated virus). Heat inactivated serum is the standard choice for routine primary cell culture, immunoassays, and complement-sensitive experiments where complement removal is the primary requirement and the pathogen risk profile is acceptable for RUO work.

Why use human serum instead of FBS for primary human cell culture?

Fetal bovine serum introduces xenogenic proteins — bovine albumin, bovine IgG, bovine transferrin — that activate innate immune responses in human primary cells, particularly T cells, NK cells, and dendritic cells. This leads to non-specific activation, altered cytokine secretion profiles, and reduced viability in sensitive immune cell cultures. Human serum eliminates xenogenic exposure, provides human-matched growth factors and carrier proteins, and better reflects physiological conditions for human primary cells. For cell therapy and ATMP applications, EMA guidance (EMA/410/01) explicitly recommends minimising or eliminating animal-derived culture supplements; heat inactivated human serum is the standard replacement used in GMP-adjacent and clinical-grade primary cell expansion protocols.

Is heat inactivated human serum suitable for GMP manufacturing?

This product is supplied as Research Use Only (RUO). GMP-grade human serum with extended documentation — including detailed donor screening records, viral marker test reports, sterility certificates, and lot traceability documentation — is available on request. GMP material is produced under the same heat inactivation and filtration conditions and sourced from the same certified EU and US donor centers, with additional quality system documentation to support IND/BLA filings and EMA submissions. Contact our team with your specific GMP documentation requirements and we will confirm availability and lead time.

Can I reserve a specific batch of heat inactivated human serum for long-term use?

Yes — batch reservation is available for up to 36 months. This is strongly recommended for long-term cell culture programmes, immunoassay development, and cell therapy manufacturing workflows where lot-to-lot consistency is critical. Human serum composition varies between donor pools — total protein content, immunoglobulin profile, and growth factor levels differ across lots. Reserving a single validated lot at the start of a project eliminates lot-change validation requirements over the duration of the programme. Contact our team with your required volume and timeline and we will hold the validated lot under controlled storage conditions until your delivery schedule is confirmed.

Request a Quote or Sample

48h response · EU & Swiss Supply · Batch reservation available · Full documentation

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Der Beitrag Human Serum Heat Inactivated | Mixed Donors | EU/US Origin | sterile filtered erschien zuerst auf SeamlessBio.

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