Fluorinated Water-Soluble Poly(2-oxazoline)s as Highly Sensitive 19F MRI Contrast Agents

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24530%2F20%3A00007847" target="_blank" >RIV/46747885:24530/20:00007847 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/20:00531986 RIV/00216208:11110/20:10413775 RIV/00216208:11310/20:10413775 RIV/46747885:24220/20:00007847

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acs.macromol.0c01228" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.macromol.0c01228</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.macromol.0c01228" target="_blank" >10.1021/acs.macromol.0c01228</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fluorinated Water-Soluble Poly(2-oxazoline)s as Highly Sensitive 19F MRI Contrast Agents

Popis výsledku v původním jazyce

Recently, 19F magnetic resonance imaging (MRI) emerged as a powerful noninvasive diagnostic tool in modern medicine. Fluorinated polymer materials represent an attractive class of MRI contrast agents (CAs) due to their structural variability and tunable properties. Herein, we describe for the first time the 19F MRI of CAs based on fluorinated water-soluble poly(2-oxazoline)s (PAOx), a polymer class with increasing popularity in biomedical sciences. A series of fluorinated PAOx with increasing fluorine content were synthesized by controlled side-chain hydrolysis of poly(2-methyl-2-oxazoline) followed by reacylation of its ethylenimine units by difluoroacetic anhydride. As the increasing fluorine content leads to the copolymer hydrophobization, their composition was optimized for maximal 19F MRI performance while retaining good solubility in water. The magnetic properties of the water-soluble polymers were studied in vitro by 19F NMR and MRI, revealing their outstanding relaxation properties and imaging sensitivity. All CAs were found to be noncytotoxic for HeLa cells in vitro. Finally, the diagnostic potential of the new CAs was demonstrated by a successful in vivo19F MRI visualization of the selected fluorinated polymer in rats.

Název v anglickém jazyce

Fluorinated Water-Soluble Poly(2-oxazoline)s as Highly Sensitive 19F MRI Contrast Agents

Popis výsledku anglicky

Recently, 19F magnetic resonance imaging (MRI) emerged as a powerful noninvasive diagnostic tool in modern medicine. Fluorinated polymer materials represent an attractive class of MRI contrast agents (CAs) due to their structural variability and tunable properties. Herein, we describe for the first time the 19F MRI of CAs based on fluorinated water-soluble poly(2-oxazoline)s (PAOx), a polymer class with increasing popularity in biomedical sciences. A series of fluorinated PAOx with increasing fluorine content were synthesized by controlled side-chain hydrolysis of poly(2-methyl-2-oxazoline) followed by reacylation of its ethylenimine units by difluoroacetic anhydride. As the increasing fluorine content leads to the copolymer hydrophobization, their composition was optimized for maximal 19F MRI performance while retaining good solubility in water. The magnetic properties of the water-soluble polymers were studied in vitro by 19F NMR and MRI, revealing their outstanding relaxation properties and imaging sensitivity. All CAs were found to be noncytotoxic for HeLa cells in vitro. Finally, the diagnostic potential of the new CAs was demonstrated by a successful in vivo19F MRI visualization of the selected fluorinated polymer in rats.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Macromolecules

ISSN

00249297

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

6387-6395

Kód UT WoS článku

000562138100026

EID výsledku v databázi Scopus

2-s2.0-85089864418