Glossary

Horizontal centrifugation

Horizontal centrifugation spins tubes in a swing-out rotor so they lie flat under load. It produces even, perpendicular layers and is specified by solid PRF protocols.

In practice

The distinction between horizontal and fixed-angle centrifugation is one of the six parameters a protocol must state under the AR2T3 reporting standard.

See also

Swing-out rotorA swing-out rotor lets tubes rotate to horizontal under load, so the layers stratify flat and perpendicular to the tube.
Leukocyte- and platelet-rich fibrin (L-PRF)L-PRF is the original solid platelet-rich fibrin, produced by centrifuging blood without anticoagulant so that a fibrin clot forms during the spin.
Advanced PRF (A-PRF)A-PRF is a solid platelet-rich fibrin produced with reduced force and increased time relative to the original L-PRF protocol, with the aim of raising leukocyte content and distributing cells more evenly through the clot.