NuTips and TopTips from Glygen All of Poly LC's materials are available in Glygen's NuTip or TopTip format.  Some, such as PolyHYDROXYETHYL A, are available in more than one pore diameter (e.g., 300-A for proteins and peptides, 100-A for small molecules).  In addition, Poly LC offer C-4, C-8, C-18, and HyperCarb for reversed-phase (as well as C-18 silica and HyperCarb mixed together, a popular combination with their additive affinities), several Poros materials, IMAC, and uncoated silica and titania.