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Native Human Serum

When you develop an IVD calibrator, the choice of matrix is not a procurement decision — it is a scientific and regulatory decision with direct consequences for the assay’s performance […]

IVDR Class D Sample Sets

If you are preparing a CE marking submission for a Class D IVD — an HIV, HBV or HCV diagnostic — you will quickly find that the Common Technical Specifications […]

Xeno-Free vs Serum-Free vs Animal

August 2026 · 6 min read Xeno-free. Serum-free. Animal component-free. Chemically defined. These four terms appear in almost every cell therapy protocol — and they are not synonyms. Using the […]

FBS South American Origin

August 2026 · 6 min read When you order FBS, the supplier will tell you it is “South American origin” — and for most applications, that is the end of […]

2d or 3D Single Use Bags

August 2026 · 7 min read The most common question in single-use bioprocessing bag selection is not “which brand” — it is “2D or 3D?” The answer depends on your […]

Disease State Serum

August 2026 · 6 min read Standard human AB serum comes from healthy, screened-negative donors. For many research and diagnostic applications, that is exactly what you need. But for IVD […]

FBS BVDV Testing — CPE vs RNA/qPCR

August 2026 · 6 min read BVDV — bovine viral diarrhea virus — is the most significant viral contaminant risk in fetal bovine serum. It is also one of the […]

Normal Serum for IHC & IF Blocking

August 2026 · 6 min read Blocking serum selection is one of those protocol details that gets copied from paper to paper without much thought — until you get high […]

rHSA vs BSA in Serum-Free Cell Culture

August 2026 · 7 min read Both rHSA and BSA are albumin proteins used as serum replacements in cell culture, DMPK assay buffers, and IVD applications. They are not interchangeable. […]

Off-the-Clot (OTC) Serum Explained — When & Why to Use It

August 2026 · 6 min read If you have browsed human serum catalogues you have seen “off-the-clot” or “OTC” serum listed alongside standard serum at a slightly higher price. The […]