Daniel Okafor
-
Cryopreservation: Freezing Cells Without Destroying Them
Cells are not killed by cold. They are killed by ice and by the concentrated solution ice leaves behind, which is why cooling rate decides survival.
-
CO2 Incubators and the Art of Keeping Cells Alive
The gas setting on an incubator is not a convention, it is one half of a chemical buffer whose other half is dissolved in the medium.
-
Antibody Validation: The Quiet Crisis in Protein Research
A commercial antibody is a biological reagent with no guarantee it binds only your protein, and the consequences run through thousands of published figures.
-
Gel Electrophoresis and How to Read the Lanes
A gel image carries far more information than whether a band appeared. Position, sharpness and intensity each report on something specific that happened in the tube.
-
Centrifugation Theory and Why Rotor Choice Matters
A spin protocol written in revolutions per minute is not a protocol at all, because the same speed produces different forces in different rotors.
-
Buffers and pH: The Chemistry Behind Stable Reactions
A buffer chosen for the wrong pKa fails silently, holding its label while the reaction it was meant to protect drifts out of range unnoticed.
-
Aseptic Technique: The Habits That Keep Cultures Clean
Aseptic technique is not a list of rules to memorise. It is airflow management and hand choreography, and once you see it that way the rules…
-
Biobanking: Storing Human Samples for Decades
Keeping human samples frozen for thirty years is the easy part of biobanking. Knowing what they are, who agreed to what, and how to find them…
-
How Peer Review Actually Works and Where It Fails
Peer review is often treated as a certificate of truth. It is closer to an informed reading by two or three busy strangers who never see…
-
The Reproducibility Crisis Seen From the Bench
Most replication failures are not caused by fraud but by ordinary bench realities: drifting protocols, variable reagents, small samples and selective reporting.
