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I've had my Clonetics Cells in culture for a few months, they're no longer growing and don't look like healthy cells, what's wrong?

All Clonetics™ Cells are primary cells with a finite life span. Most Clonetics™ Cells are guaranteed for 10 – 15 additional population doublings, which equates to about 2 – 3 passages. As cell death begins to occur, morphology and cell performance...

Where can I find the meaning of the 4D-Nucleofector® System Error Codes?

In the back of the respective manuals, there is a chart giving a brief description of the error codes. If more information is needed or an error code is recurrent, it is best to contact Scientific Support for advice to determine if there is a...

Do the Clonetics Rat and Mouse Astrocytes require an extracellular matrix for plating?

No, they simply need to be seeded onto tissue culture treated plastic. For best performance, we recommend to use positively charged plasticware

What age are the rats that your Clonetics Rat DRGs are isolated from?

The Rat Neonatal Dorsal Root Ganglion (DRG) Neurons (R-DRG-505) are isolated from neonatal, about 2-3 days old.The Rat Embryonic Dorsal Root Ganglion (eDRG) Neurons (R-eDRG-515) are isolated from embryonic rats (E14-15).

According to which standard is the Nucleofector® System certified?

The 4D-Nucleofector® Unit was tested by TÜV Rheinland Product Safety GmbH and found to be in compliance with the following standards:• IEC 61010-1The 4D-Nucleofector® Unit was tested by TÜV Rheinland of North America Inc. and found to be in...

Will the GFAP expression in your Clonetics Normal Human Astrocytes remain the same throughout the culture?

The GFAP expression decreases rapidly with passaging. The results that we give are performed in the 1st passage out of cryopreservation.

Is it typical for the fluorescence observed from my tagged protein to appear less than the empty fluorescent vector?

Yes, this is a routine observation.Fluorescent fusion proteins can appear less bright than the fluorescent protein itself. This may be due to differences in protein folding of the fused protein.

In my Nucleofection® Experiment, how critical is the time point for analysis post transfection?

It is very critical. Waiting too long for analysis post transfection can lead to loss of peak expression. The optimal time for analysis is related to two factors: stability of protein being expressed and transfection method. For a short-lived protein...

What medium and which cytokines are recommended for Natural Killer (NK) cell culture?

For the cultivation of Natural Killer (NK) cells we recommend using the X-VIVO 15 medium.In regard to cytokines, this varies depending upon the application, but many cited publications indicate using IL-2 for activation and longer term culture.

Do we sell the Nucleofector® Solution (or any other component of the Nucleofector® Kit) separately?

We don't sell the individual components of the kits separately because our product line is a kit concept line to ensure the use of certified products with quality controlled lot numbers that guarantee optimal results.
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