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Updated: Aug 19, 2026

Facile Protocol for the Synthesis of Self-assembling Polyamine-based Peptide Amphiphiles (PPAs) and Related Biomaterials
Published on: June 25, 2018
Polystyrene-type resin used for peptide synthesis: application for anion-exchange and affinity chromatography
Regina S H Carvalho1, Danielle A Ianzer, Luciana Malavolta
1Department of Biophysics, Universidade Federal de Sao Paulo, Rua 3 de Maio 100, CEP 04044-020, São Paulo, SP, Brazil.
Abstract:
This paper deals with an unusual application for a copolymer of styrene-1% divinylbenzene bearing high amount of aminomethyl groups for anion-exchange and affinity chromatography. The so-called aminomethyl resin (AMR), to date only employed for peptide synthesis, swelled appreciably in water and was used successfully to purify negatively charged peptides. By correlating swelling degree of beads with pH of the media, it was possible to estimate that the AMR amino group pK(a) is approximately 5.5. In addition, the synthesized acetyl-(NANP)3-AMR succeeded in the affinity interaction with large antibody molecules related to malaria transmission and raised previously against this dodecapeptide sequence.
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