Scientific contributor: Dr. Tayner Rodriguez Garzon · Published by Cell Culture Tools · How content is prepared
This page links to cell-specific recovery information. It has no numerical thawing algorithm. After recovery and counting, the seeding calculator can plan a known viable-cell allocation.
Worked examples use illustrative inputs, independent of your current calculation and selected cell line. Replace them with measured values and your lab protocol.
How to use this tool
- Select the exact cell line and open its full vendor handling procedure. Match the product and batch information to your approved protocol.
- Check the reference medium, supplements and culture environment shown above. Unverified fields remain marked as unavailable; do not fill those gaps by assuming another line’s conditions apply.
- Prepare medium using Media formulation when appropriate. Follow the full handling procedure for thawing, cryoprotectant removal and initial recovery.
- Once you have a representative viable-cell measurement and a protocol-approved seeding target, use Seed cells for the dispensing calculation. Do not treat the labelled pre-freeze count as a measured post-thaw viable count.
1 mL = 1,000 µL; 1 L = 1,000 mL. Convert volumes to mL when combining them with cells/mL or mg/mL.
Worked examples
Plan seeding after measuring the recovered suspension
Inputs. After the prescribed recovery procedure: 1 mL at 2,000,000 total cells/mL and 80% viability. Illustrative target: one T-25 at 20,000 viable cells/cm² in 5 mL.
- Viable concentration: 2,000,000 × 0.80 = 1,600,000 cells/mL; available viable cells: 1,600,000.
- Target: 25 × 20,000 = 500,000 viable cells.
- Stock volume: 500,000 / 1,600,000 = 0.3125 mL.
- Fresh medium: 5 − 0.3125 = 4.6875 mL.
Result. In Seed cells, these inputs give 312.5 µL measured suspension + 4.6875 mL medium for the chosen target.
Assumptions and interpretation
- A count after thawing and processing measures the suspension at that point. The app does not predict survival, attachment or recovery from the pre-freeze vial count.
- Medium and atmosphere must match the selected formulation. In particular, the linked MDA-MB-231 ATCC reference uses L-15 without added CO₂; do not transfer an incubator setting from another formulation.
- The dilution arithmetic cannot replace product-specific recovery instructions. Cell losses during washing or other processing require a new measurement when calculating an accurate allocation.
References and source scope
These sources support the stated background and product references. Formulas explain this tool’s arithmetic; worked examples are not vendor recommendations or evidence of vendor endorsement.