Thioether-based poly(2-oxazoline)s: from optimized synthesis to advanced ROS-responsive nanomaterials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F23%3A00577520" target="_blank" >RIV/61389013:_____/23:00577520 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/23:10471049

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2023/PY/D3PY00945A" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2023/PY/D3PY00945A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/D3PY00945A" target="_blank" >10.1039/D3PY00945A</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thioether-based poly(2-oxazoline)s: from optimized synthesis to advanced ROS-responsive nanomaterials

Popis výsledku v původním jazyce

Intelligent redox-responsive polymers, such as thioether-containing macromolecules, facilitate drug delivery and triggered release in biomedical applications. Moreover, reactive oxygen species (ROS)-responsive thioether systems based on poly(2-oxazoline)s (PAOx) platforms hold great promise for the development of highly biocompatible, stimuli-responsive biomaterials. However, thioether-containing PAOx are particularly difficult to synthesize because thioethers are incompatible with the cationic ring-opening polymerization (CROP). In this study, we aim at developing an alternative route to well-defined thioether-containing PAOx by a simple post-polymerization modification of linear polyethyleneimine. First, the synthesis of ROS-responsive PAOx homopolymers was optimized. Furthermore, ROS-sensitive amphiphilic diblock copolymers poly(ethylene glycol)-block-poly(2-methylthiomethyl-2-oxazoline) were synthesized by combining CROP with 2-oxazoline side-chain interchange via a polyethyleneimine block intermediate. In an aqueous environment, the copolymers self-assembled into thioether-containing micelles. These micelles were characterized by size exclusion chromatography, nuclear magnetic resonance, matrix-assisted laser desorption/ionization-time of flight mass spectrometry, dynamic light scattering, differential scanning calorimetry, and transmission electron microscopy. In addition, treatment with diluted H2O2 destabilized the nanoparticles, thus demonstrating their oxidation-responsiveness. This approach provides key insights into the design and development of stimuli-responsive polymers for potential biomedical applications, such as drug delivery systems.

Název v anglickém jazyce

Thioether-based poly(2-oxazoline)s: from optimized synthesis to advanced ROS-responsive nanomaterials

Popis výsledku anglicky

Intelligent redox-responsive polymers, such as thioether-containing macromolecules, facilitate drug delivery and triggered release in biomedical applications. Moreover, reactive oxygen species (ROS)-responsive thioether systems based on poly(2-oxazoline)s (PAOx) platforms hold great promise for the development of highly biocompatible, stimuli-responsive biomaterials. However, thioether-containing PAOx are particularly difficult to synthesize because thioethers are incompatible with the cationic ring-opening polymerization (CROP). In this study, we aim at developing an alternative route to well-defined thioether-containing PAOx by a simple post-polymerization modification of linear polyethyleneimine. First, the synthesis of ROS-responsive PAOx homopolymers was optimized. Furthermore, ROS-sensitive amphiphilic diblock copolymers poly(ethylene glycol)-block-poly(2-methylthiomethyl-2-oxazoline) were synthesized by combining CROP with 2-oxazoline side-chain interchange via a polyethyleneimine block intermediate. In an aqueous environment, the copolymers self-assembled into thioether-containing micelles. These micelles were characterized by size exclusion chromatography, nuclear magnetic resonance, matrix-assisted laser desorption/ionization-time of flight mass spectrometry, dynamic light scattering, differential scanning calorimetry, and transmission electron microscopy. In addition, treatment with diluted H2O2 destabilized the nanoparticles, thus demonstrating their oxidation-responsiveness. This approach provides key insights into the design and development of stimuli-responsive polymers for potential biomedical applications, such as drug delivery systems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer Chemistry

ISSN

1759-9954

e-ISSN

1759-9962

Svazek periodika

14

Číslo periodika v rámci svazku

42

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

4838-4847

Kód UT WoS článku

001085531400001

EID výsledku v databázi Scopus

2-s2.0-85175237285