Dna stored dry at room temperature on whatman cards can be reused by taking a fresh punch from the card each time.
Storing dna at room temperature.
In the case of chemically preserved dna you re able to do multiple hydration dehydrations.
Genvault has developed a suite of products that includes genplates gensolve gentegra tubes and genconnect to store and manage biosamples dry and at room temperature 25 c.
They recovered high quality rna from the freeze dried samples showing that lyophilization may be a cost effective way to store rna and dna samples.
Studies have shown that blood can be stored for up to 24 hours at room temperature prior to purification but if possible it should be placed on ice.
However such dna samples need to be.
Similarly individual wells from genplates can be sampled without disturbing other wells.
For longer term storage blood should be stored at 4 c or 80 c studies have shown that good quality dna can be obtained from blood stored at 80 c 9.
Such samples were kept in te buffer and were stable for 6 to 12 months.