If we want to fabricate LFA or uPaD, we need to prepare AuNPs-DNA reporter probe or using AuNPs-Antibody as a label (colorimetri).

Other solution that we have to prepare is Bovin Serum Albumin (BSA) for blocking step.

The question:

How long the stabilization all of them when we keep at 4 degrees Celcius?

Do you have any references to mention that case?

Thank you