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Is the CCK‑8 assay equally sensitive across different cell types?

Publication date:2026-10-29
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It’s different. Suspension cells are more difficult to stain than adherent cells. For adherent cells, adding CCK‑8 and incubating for 1–4 hours typically yields a high absorbance; however, suspension cells may exhibit lower absorbance. This can be addressed by extending the CCK‑8 incubation time or increasing the cell density.