Size Selection of Cells and Microcarrier Beads

CELLNETTA Application Case Studies

In cell-based experiments and cell processing, various operations are used to remove foreign bodies from cell suspensions. These operations include preprocessing for cell analysis using a cell sorter and the fractionation of cells and beads after microcarrier cell culture.
Here, we will introduce the method used at Murata Manufacturing to remove beads from HL-60 cell suspensions.

Implementation method

  1. (1)Prepare a suspension of HL-60 cells and beads.*1
  2. (2)Place 40-µm mesh CELLNETTA into a centrifuge tube (Figure 1, Operation 1).
  3. (3)Apply hydrophilic treatment to the CELLNETTA.*2
  4. (4)Pour the suspension through CELLNETTA (Figure 1, Operation 2).

*1 Conditions for suspension preparation

Cell Type HL-60
Size 14 µm
Cell count 5.64×107 cells
Cell concentration 1.41×106 cells/mL
Bead Type Cytodex 3(Cytiva)
Size 120-180 µm
Particle count 7200 beads
Solvent Type RPMI medium
Volume 40 mL
Operation 1 : Place into a centrifuge tube
Operation 1 :
Place into a centrifuge tube
Operation 2 : Pour the suspension
Operation 2 :
Pour the suspension
Figure 1: Operation procedure chart

*2 For more information, please refer to the “Hydrophilic Treatment Manual“ in the CELLNETTA User Guide.

Results

An image of the suspension after processing using CELLNETTA is shown in Figure 2.
After processing using CELLNETTA, the beads in the cell suspension are trapped in CELLNETTA (Figure 2-A).
Then, by filtering the suspension through the CELLNETTA, only the cells are fractionated (Figure 2-B).
In addition, results of cell measurement of the suspension passed through CELLNETTA showed that HL-60 cells passed through with high efficiency (95%) (Table 1).

These results indicate that using CELLNETTA can fractionate beads from cell suspensions.

This simple bead removal method using CELLNETTA is expected to be useful for the fractionation process of cells and beads after bead culture.

(A) Beads trapped on the CELLNETTA mesh Mesh size: 40 µm
(A)
(B) Suspension after processing using CELLNETTA
(B)
Figure2: (A) Beads trapped on the CELLNETTA mesh (B) Suspension after processing using CELLNETTA
Input solution Suspension after processing using CELLNETTA
Cell Cell count 5.64×107 cells 5.35×107 cells
Cell concentration 1.41×106 cells/mL 1.35×106 cells/mL
Bead Particle count 7200 beads None observed
Solvent Volume 40 mL 39.5 mL
Table 1: Measurements and observation results of the suspension before and after processing using CELLNETTA

Product used in this application note

Pore size Gamma Irradiation Product number (P/N)
40 µm (custom made) Gamma Irradiated MZM1B040B50G

Notes

  • ●This product is not a medical device.
  • ●This product is a sample for evaluation purpose.
  • ●Please do not ship out your completed product with the sample.
  • ●We shall not be liable for any claims on the sample in case it is shipped out to the market.

CELLNETTA Details

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This product is single-use only.

Image of the CELLNETTA MZM1 Series Cell Fractionation Filter
  • Compatible with 50 mL centrifuge tubes
  • Individually packaged
  • Made in Japan
  • Gamma irradiated
Please flick to check
Size compatible with 50 mL centrifuge tubes
Pore Size (μm) Package Quantity Part Number Application Examples
5 1 MZM1B005B50GA Purification of culture medium from cell suspensions Removal of red blood cells from whole blood/PBMC
5 MZM1B005B50GB
10 1 MZM1B010B50GA Purification of single cells
5 MZM1B010B50GB
15 1 MZM1B015B50GA Fractionation of clusters and single cells
5 MZM1B015B50GB
20 1 MZM1B020B50GA Fractionation of clusters and single cells
5 MZM1B020B50GB
100 1 MZM1B100B75GA Spheroid size-based sorting for drug efficacy testing
5 MZM1B100B75GB
200 1 MZM1B200B75GA Fractionation of microcarrier beads Spheroid size control
5 MZM1B200B75GB

*We recommend selecting a pore size slightly smaller than the target cells. Please contact us for guidance on selecting the optimal pore size for your application.
*Flow behavior may vary depending on cell morphology, flow conditions, and other factors.