In article <5cdmu9$9rf at highway.leidenuniv.nl>, o.meijer at chem.leidenuniv.nl wrote: > In article <5c5r41$rrt at light.nih.gov>, bernard at elsie.nci.nih.gov says... > > >Since they only catalyse the polymerisation of the acrylamide monomer > >they play no real role in the eventual structure of the gel. > polymerisation is by radical reaction.