2026-04-05T10:48:23Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/3561212026-02-07T11:59:55Zcom_2072_1033col_2072_452950

Polypeptide-based materials prepared by ring-opening polymerisation of anionic-based alpha-amino acid N-carboxyanhydrides: A platform for delivery of bioactive-compounds Tinajero, Ernesto Kimmins, Scott D García-Carvajal, Zaira-Yunuen Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon Àrees temàtiques de la UPC::Enginyeria química Copolymers Polymerization Drug carriers (Pharmacy) N-carboxyanhydrides Ring-opening polymerisation l-Aspartic acid l-Glutamic acid Synthetic copolypeptides Hybrid copolymers Excipients Bioactive-compounds Copolímers Polimerització Excipients Polymerisation of a-amino acid N-carboxyanhydrides (NCAs) is one of the most common techniques to prepare synthetic polypeptides. Of special interest are the NCAs derived from a-amino acids, L-aspartic acid and L-glutamic acid, since most investigations have been focused on their use to synthesise multiblock copolypeptides or hybrid synthetic polypeptide-polymers to design excipients suitable for delivery of bioactive compounds. This perspective highlights advantages of using L-aspartic acid and L-glutamic over other natural a-amino acids in that their pendant carboxyl group serves as a reactive handle for coupling a variety of reactive groups, and because the resulting polypeptides have the ability to adopt secondary structures. In addition, recent progress in the ring-opening polymerisation of NCAs will be discussed. Throughout, we provide representative examples that shed light on the NCAs polymerisation process, and we finally share our perspectives concerning the practical use of anionic a-amino acids as building blocks for future investigations. Peer Reviewed Objectius de Desenvolupament Sostenible::3 - Salut i Benestar Postprint (published version) 2021-09 Article https://www.sciencedirect.com/science/article/pii/S1381514821002327 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095041-B-C33/ES/SISTEMAS DE LIBERACION DE FARMACOS BASADOS EN POLIMEROS AVANZADOS PARA EL TRATAMIENTO DE ENFERMEDADES GASTROINTESTINALES: POLIESTERES ANFIFILICOS Y BIOPOLIMEROS CARBOXILADOS/ ©2021.Elsevier http://creativecommons.org/licenses/by-nc-nd/4.0/ Open Access Attribution-NonCommercial-NoDerivatives 4.0 International