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 […]
FBS Lot Testing Protocol — Step-by-Step Guide
August 2026 · 7 min read You have found an FBS lot that works. Growth is consistent, your assay data is clean, and reproducibility is solid. Then the lot runs […]
Human AB Serum — Complete Guide to Uses, Grades & When to Switch
August 2026 · 8 min read Human AB serum is one of those reagents that sits in the catalogue of every life science supplier — but it rarely gets explained […]
In Vitro Drug Metabolism — CYP450, Microsomes & Hepatocytes
August 2026 · 8 min read Human AB serum is one of those reagents that sits in the catalogue of every life science supplier — but it rarely gets explained […]
Inside-Out Membrane Vesicles Explained
August 2026 · 8 min read If you are new to DMPK transporter assays, the term “inside-out membrane vesicles” comes up immediately — and it is rarely explained from the […]
FDA & EMA Mandatory Drug Transporters
August 2026 · 10 min read Before your drug candidate enters first-in-human trials, regulatory agencies expect you to have characterised its interactions with a defined set of drug transporters. Miss […]
Vesicular Transport vs. Cell-Based vs. ATPase Assay
August 2026 · 9 min read You need to assess whether your drug candidate interacts with an ABC efflux transporter. Three in vitro methods are available: the vesicular transport assay, […]