I think Bangs Laboratories in Indiana have them.... In article <199510100822.EAA152958 at acs3.bu.edu>, yotennis at ACS.BU.EDU says: > >I am looking for some information oon strepavidin-coated magnetic micro- >beads used in affinity chromatography or even general information. > >If you can help , please email to me. > >Thanks. > >