The invention relates to a method of coating beads with a biological molecule comprising: (i) coating a plurality of beads with the biological molecule； (ii) mixing the coated beads with a liquid stabilizing and/or blocking agent (iii) dispersing the coated beads still substantially surrounded by a liquid phase comprising the liquid stabilizing and/or blocking agent across a surface that is at least partially liquid permeable； (iv) drying the beads on the surface to substantially remove the liquid phase； and (v) removing the dried beads from the surface.
