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Can I order any of the Nucleofector™ Kit components separately?

No, we do not offer the components of the Nucleofector Kits separately. The Nucleofector™ Kits are only available as complete kits.

Can calcium influx issues affect viability or differentiation in Stem Cells after Nucleofection™?

When cells are transfected by Nucleofection™, transient pores are generated in the cell membrane. Generally, these pores disappear within 15 minutes of transfection, but if cells are plated immediately after Nucleofection™ in medias that contain high...

Why do you have different Optimized Protocols for the Nucleofection™ of unstimulated and stimulated Human T cells?

We found that the stimulation of T cells not only changes the cells' function but also significantly alters the requirements for successful Nucleofection™. That's why Lonza developed two Optimized Protocols for transfection giving different...

What are the requirements for direct Nucleofection™ of mRNA for protein expression?

The mRNA should be capped and polyadenylated. The conditions of Nucleofection™ will be the same as for DNA with the particular cell type, i.e. follow the same protocol and use the same program, except one will likely need to add a much higher amount...

Is it possible to use frozen primary CD34+ hematopoietic stem cells for Nucleofection™?

Yes. For cryopreserved PBMCs or enriched CD34 populations, we recommend culturing the thawed cells 1-2 hours in culture medium before Nucleofection™. Any further enrichment procedure after thawing is not recommended. Viability of frozen nucleofected...

What are the critical steps for successful Nucleofection™ of monocytic cell lines like THP-1, HL60 and U-937?

To achieve optimal results, we strongly recommend following the Optimized Protocols in regard to cell culture conditions (medium, splitting cycle, density before Nucleofection), DNA amount and purity. Please also be sure not to exceed 90xg when...

When nucleofecting cancer cell lines, do I need to be concerned about passage number?

For the most efficient gene transfer, we recommend using cells that are in logarithmic growth phase and at a passage number of 10-15 (from the time of thaw). This is because some cell lines differentiate and change their features after many...

Why am I not able to detect my fluorescent labeled siRNA (e.g. FITC) after 24 or 48 hours post-Nucleofection?

Fluorescently labeled siRNA duplexes can be used to analyze transfection efficiency by fluorescence microscopy or flow cytometry. However, FITC, Rhodamine, or Alexa-488 labeled siRNA oligos should be analyzed 0.5-3 hours post-Nucleofection™. Cy-5...

Which reporter gene should I choose for my reporter gene experiment?

In general, all reporter genes can be used. For some applications (e.g. reporter gene experiments in various primary cells, experiments with late analysis time point due to starving and /or stimulation) a reporter gene with a longer half life than...

What is the maximum amount of DNA I can use in my Nucleofection™ Experiment?

The overall amount of 5 µg should not be exceeded. Look in the cell specific Optimized Protocol (OP) for the recommended total DNA amount of the cell type of interest.
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