The McBain Medal is an annual award by the Colloid and Interface ÉîÒ¹¸£Àû¹ú²ú¾«Æ· Group of the RSC and the Colloid and Surface ÉîÒ¹¸£Àû¹ú²ú¾«Æ· Group of the SCI to honour a younger scientist who has made a meritorious contribution to colloid & interface science.