I would suggest resuspending the purified DNA over a period of 24 to 48 hours at 4 degrees Celcius. Don't try to rush this. Resuspension in either TE or Milli Q water will do. In my experience, resuspension in Milli Q is better for downstream applications such as cloning and PCR as the salts in TE buffer may influence these. TE buffer is better suited for long term storage of DNA samples. Hope this helps.
I would suggest resuspending the purified DNA over a period of 24 to 48 hours at 4 degrees Celcius. Don't try to rush this. Resuspension in either TE or Milli Q water will do. In my experience, resuspension in Milli Q is better for downstream applications such as cloning and PCR as the salts in TE buffer may influence these. TE buffer is better suited for long term storage of DNA samples. Hope this helps.
It will get some damages depending on the time left outside. The truth is unlike RNA, DNA is pretty stable and can withstand various harsh condition. That's why you can find DNA extracted from samples from millions of years ago, although it will have some damages if not treated correctly. So, yes you can probably use the DNA for simple experiments like PCR but maybe not perfect for very sensitive methods.
Some applications require dried DNA/amplicon (eg. BDT sequencing), and it is a useful way to transport your DNA samples, so leaving them dried and carefully stored for a few days should not have any effect on quality. However - I agree with Chris in that the resuspension of your dried DNA should be a prolonged and careful process to avoid hydrolysis/ruining your sample!
Yes it will be damaged as it may lead to dehydration of DNA . Use milliQ as it is better for long term storage.
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