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I have been having trouble with "clumping" with my PC12 cells. Do you have any recommendations?

Yes. As PC12 cells often tend to clump we recommend resuspending these cells as thoroughly as possible with a sterile 1mL pipette tip or transfer pipette from your Nucleofector™ kit. This circumvents potential fusion of cells due to the...

What is the best incubation time for transient protein production?

The optimal incubation time ranges from 2-days to 6 days depending on various factors like the stability of the protein in the medium, potential toxicity of the protein, cell density and stability of the plasmid in the nucleus. To check the timepoint...

Are your Nucleofector Solutions checked for RNase activity during your QC process?

Yes. We do test the Solutions with a real time RT-PCR based assay. This assay basically measures the quantity of an RNA template after incubation in our solution. In case there is RNAse contamination the template would be digested which would be...

Why is the Nucleofector Technology ideal for transient protein production ?

For many cell lines in suspension, especially sCHO, conventional transfection methods are very limited in efficiency. For protein production, suspension cells are favored over adherent cells because they are much easier to cultivate. Unlike...

What is a Neural Stem Cell (NSC)?

Neural stem cells are adult stem cells but you also find them in embryos (already in "adult" differentiation status) and they have the potential to develop into neurons and glial cells. We recommend isolating them from rat and mouse embryos because...

Why is the Nucleofector Technology ideal for protein production from stable clones ?

The generation of a stable clone often requires six months or more due to selection procedures and adaption to serum-free conditions after transfection. With the help of the Nucleofector technology suspension cells can be transfected directly in a...

Do I need a pure neuronal culture for Nucleofection ?

In principle, it should be absolutely fine to nucleofect pure neuron cultures (e.g. after purification by Ficoll). Glial cells are not necessary for transfection. What one would have to consider for example, is to get the required number of neurons,...

What kind of buffer do you recommend for resuspending my siRNA?

Please use the buffer that is recommended by your siRNA manufacturer.

Does your Nucleofector Solutions contain anything that would inhibit attachment of adherent cells?

No. In many cases where decreased attachment is a problem, the cause is inactivated trypsin. Unless the trypsin is inactivated with trypsin inhibitor or media containg BSA or serum, it will continue to degrade the cells and ultimately decrease cell...

How many cortical neurons can I expect from a single pup?

According to QBM Cell Sciences, you can expect 12 million cortical neurons from an average E18-E19 rat pup. You can expect 4 million cortical neurons from an average mouse pup.