Why can I only process 48 samples on a 96-well plate using the RED device?
Each sample requires two chambers for equilibrium dialysis to take place (96/2 = 48).
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Can I heat the PTFE block on a hot plate to maintain the temperature of the RED Device?
Yes, as most assays are performed at physiological temperature (37.5 degrees C).
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If I see vapor condensing on the clear sealing film, will the loss of water vapor affect the result when using the RED Device?
No. It will not affect the equilibrium.
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How do I mix the samples to speed reaching equilibrium when using the RED Device?
Once samples are loaded into the PTFE plate it should be placed on a shaking device. With an orbital shaker 100 rpm works well. For an up and down shaker, 20 rpm is sufficient.
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With the rapid equilibrium dialysis (RED) system, if my compound has low solubility in aqueous buffer, can I use DMSO and if so, at what concentration?
A final concentration of 1% DMSO is acceptable and will not affect the study. While DMF has not been tested, it is expected that DMF should be similar to DMSO in terms of use.
Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.