Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid Urethanes

Polypeptide synthesis was accomplished using the urethane derivatives of amino acids as monomers, which can be easily prepared, purified, and stored at ambient temperature without the requirement for special precautions. The urethanes of amino acids are readily synthesized by the <i>N</i>...

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Main Authors: Takeshi Endo, Atsushi Sudo
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/8/9/317
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author Takeshi Endo
Atsushi Sudo
author_facet Takeshi Endo
Atsushi Sudo
author_sort Takeshi Endo
collection DOAJ
description Polypeptide synthesis was accomplished using the urethane derivatives of amino acids as monomers, which can be easily prepared, purified, and stored at ambient temperature without the requirement for special precautions. The urethanes of amino acids are readily synthesized by the <i>N</i>-carbamoylation of onium salts of amino acids using diphenyl carbonate (DPC). The prepared urethanes are then efficiently cyclized to produce amino acid <i>N</i>-carboxyanhydrides (NCAs). Thereafter, in the presence of primary amines, the ring-opening polymerization (ROP) of NCAs is initiated using the amines, to yield polypeptides with controlled molecular weights. The polypeptides have propagating chains bearing reactive amino groups and initiating chain ends endowed with functional moieties that originate from the amines. Aiming to benefit from these interesting characteristics of the polypeptide synthesis using the urethanes of amino acids, various macromolecular architectures containing polypeptide components have been constructed and applied as biofunctional materials in highly efficient antifouling coatings against proteins and cells, as biosensors for specific molecules, and in targeted drug delivery.
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spelling doaj.art-fce8634af0524a9a9723ff563f564e252023-11-20T11:52:04ZengMDPI AGBiomedicines2227-90592020-08-018931710.3390/biomedicines8090317Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid UrethanesTakeshi Endo0Atsushi Sudo1Molecular Engineering Institute, Kyushu Institute of Technology, Sensui-cho 1-1, Tobata-ku, Kitakyushu, Fukuoka 804-8550, JapanDepartment of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Kowakae 3-4-1, Higashi Osaka, Osaka 577-8502, JapanPolypeptide synthesis was accomplished using the urethane derivatives of amino acids as monomers, which can be easily prepared, purified, and stored at ambient temperature without the requirement for special precautions. The urethanes of amino acids are readily synthesized by the <i>N</i>-carbamoylation of onium salts of amino acids using diphenyl carbonate (DPC). The prepared urethanes are then efficiently cyclized to produce amino acid <i>N</i>-carboxyanhydrides (NCAs). Thereafter, in the presence of primary amines, the ring-opening polymerization (ROP) of NCAs is initiated using the amines, to yield polypeptides with controlled molecular weights. The polypeptides have propagating chains bearing reactive amino groups and initiating chain ends endowed with functional moieties that originate from the amines. Aiming to benefit from these interesting characteristics of the polypeptide synthesis using the urethanes of amino acids, various macromolecular architectures containing polypeptide components have been constructed and applied as biofunctional materials in highly efficient antifouling coatings against proteins and cells, as biosensors for specific molecules, and in targeted drug delivery.https://www.mdpi.com/2227-9059/8/9/317amino acidspolypeptidesurethanedrug deliverybiosensors
spellingShingle Takeshi Endo
Atsushi Sudo
Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid Urethanes
Biomedicines
amino acids
polypeptides
urethane
drug delivery
biosensors
title Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid Urethanes
title_full Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid Urethanes
title_fullStr Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid Urethanes
title_full_unstemmed Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid Urethanes
title_short Well-Defined Construction of Functional Macromolecular Architectures Based on Polymerization of Amino Acid Urethanes
title_sort well defined construction of functional macromolecular architectures based on polymerization of amino acid urethanes
topic amino acids
polypeptides
urethane
drug delivery
biosensors
url https://www.mdpi.com/2227-9059/8/9/317
work_keys_str_mv AT takeshiendo welldefinedconstructionoffunctionalmacromoleculararchitecturesbasedonpolymerizationofaminoacidurethanes
AT atsushisudo welldefinedconstructionoffunctionalmacromoleculararchitecturesbasedonpolymerizationofaminoacidurethanes