20 mM Tris-HCL, 100 mM NaCl, 2 mM MgCl2, 5 mM KCl, 1 mM CaCl2
NA If the oligo is a known aptamer sequence: For binding studies, perform a refolding protocol to ensure proper function (i.e. binding to antigen or target). Refer to the aptamer reference source for the appropriate refolding parameters and binding conditions. Note: it is unknown whether aptamer functions properly without refolding.
Checked with GNP-based assay. Found ten aptamers specific for aflatoxin M1 and five that cross reacted with aflatoxin B1.