Korus™

Elutriation. Washing. One system.

What is elutriation?

The Korus™ counterflow centrifugation system operates on the principle of elutriation. Elutriation is a process for separating cells based on their size, shape and density using a stream of fluid flowing in the opposite direction to the centrifugal force.

The benefits of elutriation are:

  • Separation of target from non-target cells
  • Gentle production of a non-pelleting cell bed

Monocyte elutriation

Up to 88.6% monocyte recovery and 75% monocyte purity. Isolation of monocytes
for downstream processes such as dendritic cell (DC) maturation.

Lymphocytes Monocytes RBCs Platelets

1 LOADING
Cells from the input bag enter the chamber and are held there as excess fluid along with most of the platelets and a minor portion of RBCs flow to waste.

2 ELUTRIATION
Media flows into the chamber which causes the lymphocytes and many of the RBCs to leave the chamber, these are sent to either the transfer fraction bag or waste.

3 HARVEST
With most of the other cell types removed, the remaining monocytes are flushed from the chamber to the harvest bag.

*Standard media exchange capability: Korus™ streamlines the manufacturing workflow with the media exchange as well as volume reduction as a standard feature on Korus. Korus can help you achieve the desired cell concentration, volume, and suspension media through a fully automated process.

Lymphocyte elutriation

Up to 85.2% lymphocyte recovery and 90.3% purity, providing a cleaner starting material for CAR-T or TIL manufacturing. Can also be used for PBMC enrichment.

Lymphocytes Monocytes RBCs Platelets
1 LOADING

Cells from the input bag enter the chamber and are held there as excess fluid along with most of the platelets and a minor portion of RBCs flow to waste.

2 ELUTRIATION

Media flows into the chamber which causes the lymphocytes and many of the RBCs to leave the chamber, these are collected in the ‘fraction bag’.

3 CONCENTRATION
Lymphocytes from the fraction bag are loaded into the chamber where they are held and concentrated down much like a filter. During this step the remaining platelets and up to 50% of the RBCs are removed.
4 HARVEST

The concentrated lymphocytes are then flushed from the chamber into the harvest bag using a small volume of media.

*Standard media exchange capability: Korus™ streamlines the manufacturing workflow with the media exchange as well as volume reduction as a standard feature on Korus. Korus can help you achieve the desired cell concentration, volume, and suspension media through a fully automated process.

Cell wash and concentrate

Maximizing cell recovery and contaminant removal

Cells
1 LOADING
Cells from the input bag are loaded and concentrated in the chamber. Excess fluid from the input bag flows to waste.
2 WASH
With the cells still suspended in the chamber, the remaining starting fluid is completely replaced with a second media. All primary media and any contaminants flow to waste.  
3 HARVEST
Once the media in the chamber is replaced the concentrated cells flow from the chamber to the harvest bag and are suspended in a user selectable volume of secondary media.

*Standard media exchange capability: Korus™ streamlines the manufacturing workflow with the media exchange as well as volume reduction as a standard feature on Korus. Korus can help you achieve the desired cell concentration, volume, and suspension media through a fully automated process.

Learn how to optimize your cells for downstream success with Korus™