Cross-linked thermoresponsive anionic polymer-grafted surfaces to separate bioactive basic peptides.

Abstract

Cross-linked, thermoresponsive poly(N-isopropylacrylamide-co-acrylic acid-co-N-tert-butylacrylamide) [poly(IPAAm-co-AAc-co-tBAAm)] thin hydrogel layers on silica beads were used as new column matrix modifiers for LC separation of basic bioactive peptides, angiotensin subtypes I, II, and III. Terpolymer poly(IPAAm-co-AAc-co-tBAAm) showed both phase… (More)

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