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What method can I use to fix my HL-60 cells as shown in your optimized protocol?

The cells which are shown in the HL-60 optimized protocol are living cells and not fixed cells. However a good method for fixation of GFP is to use 3.5%-4% Paraformaldehyde in PBS. Please keep in mind that the fixation method is dependant on what...

Does the recovery medium contained in the Mouse T Cell Nucleofector Kits contain any immunogenic substances?

No. The post Nucleofection™ Recovery media contains no immunogenic factors and should not influence cell stimulation or differentiation. For Mouse T cells, some experiments have shown that after Nucleofection™ cells can be stimulated efficiently in...

Do you have a protocol for the Nucleofection of Plasmodium yoelii?

Yes. You can use our new Basic Parasite Nucleofector™ Starter kit for parasitic protozoa. The Basic Parasite Nucleofector Starter Kit (Cat.No. VMI-1001) should help you to determine the optimal program and Nucleofector Solution for your...

I see activation of my monocytes (or macrophages or DCs) following Nucleofection. Why is this? What can I do to address this problem?

We have examined the effects of Nucleofection™ (without DNA) on these cells and have not observed significant activation. This indicates that neither the Nucleofector™ Solution, the Nucleofector™ Program nor the recovery medium are sufficient for...

Do you have a protocol for Nucleofection of parasites?

Yes. You can use our Basic Parasite Nucleofector™ Starter kit for parasitic protozoa. The Basic Parasite Nucleofector Starter Kit (Cat.No. VMI-1001) should help you to determine the optimal program and Nucleofector Solution for your...

Is your pmaxGFP control vector supplied with the Nucleofector Kits suitable for stable expression?

No. This vector is only supplied in our Nucleofector™ Kits as a positive control and cannot be used for selection because it does not contain a mammalian selection marker. The only resistance gene expressed by this vector is kanamycin which is only...

I observed high mortality rates in mES cells after Nucleofection with a Cre recombinase expression vector. How can I increase the viability?

The High mortality after transfection might be due to the Cre recombinase itself, because the mammalian genome contains pseudo loxP sites (Thyagarajan B et al. (2000) Mammalian genomes contain active recombinase recognition sites. Gene....

Can Lonza's antibiotics be used in clinical trials?

No. They are for research purposes only.

What are the benefits of Amaxa Nucleofection over standard electroporation?

One major benefit of the Nucleofector™ Technology is that the nucleic acids are transferred directly into the nucleus enabling the transfection of non-dividing cells and an early analysis of transgene expression (depending on the protein) in as...

Do you have any recommended methods for detaching human monocytes from the plate for assaying or before Nucleofection?

We have had good results by incubating the cells in ice cold PBS for 10 minutes and then rinsing the plates. Alternatively, the cells can be detached without a medium change by gently pipetting the cell suspension up and down. Our experience has...
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