2-Hydroxyethyl methacrylate hydrogels for local drug delivery: study of topotecan and vincristine sorption/desorption kinetics and polymer-drug interaction by ATR-FTIR spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F21%3A00543672" target="_blank" >RIV/61389013:_____/21:00543672 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00064203:_____/21:10427616 RIV/00216208:11130/21:10427616

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/macp.202100086" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/macp.202100086</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/macp.202100086" target="_blank" >10.1002/macp.202100086</a>

Jazyk výsledku

angličtina

Název v původním jazyce

2-Hydroxyethyl methacrylate hydrogels for local drug delivery: study of topotecan and vincristine sorption/desorption kinetics and polymer-drug interaction by ATR-FTIR spectroscopy

Popis výsledku v původním jazyce

Poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogels are well known in ophthalmological applications and recently investigated as drug delivery systems. The study represents a theoretical approach where the sorption/desorption experiments and spectroscopic study is used to describe the influence of the pHEMA network structure on the sorption capacity and mechanism of the release of topotecan (TPT) and vincristine (VCR). The hydrogels are synthesized by free-radical crosslinking polymerization of HEMA monomer with ethylene glycol dimethacrylate as a crosslinker in the concentration range from 0.3 to 1 wt%. Experimental data from sorption kinetics are evaluated using sorption kinetic models and sorption isotherms, drug release mechanism is assessed by two different models and attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy is employed to describe the polymer-drug interaction. pHEMA hydrogels exhibit higher affinity for TPT than for VCR and hydrogels prepared with 0.5 wt% of crosslinker show the maximum sorption capacity for both drugs. Physisorption is proved to be the sorption mechanism. Analyzing the FTIR spectra, it is concluded that the hydrophobic crosslinks play an important role in the interaction of the hydrogel backbone with molecules of both drugs.

Název v anglickém jazyce

2-Hydroxyethyl methacrylate hydrogels for local drug delivery: study of topotecan and vincristine sorption/desorption kinetics and polymer-drug interaction by ATR-FTIR spectroscopy

Popis výsledku anglicky

Poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogels are well known in ophthalmological applications and recently investigated as drug delivery systems. The study represents a theoretical approach where the sorption/desorption experiments and spectroscopic study is used to describe the influence of the pHEMA network structure on the sorption capacity and mechanism of the release of topotecan (TPT) and vincristine (VCR). The hydrogels are synthesized by free-radical crosslinking polymerization of HEMA monomer with ethylene glycol dimethacrylate as a crosslinker in the concentration range from 0.3 to 1 wt%. Experimental data from sorption kinetics are evaluated using sorption kinetic models and sorption isotherms, drug release mechanism is assessed by two different models and attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy is employed to describe the polymer-drug interaction. pHEMA hydrogels exhibit higher affinity for TPT than for VCR and hydrogels prepared with 0.5 wt% of crosslinker show the maximum sorption capacity for both drugs. Physisorption is proved to be the sorption mechanism. Analyzing the FTIR spectra, it is concluded that the hydrophobic crosslinks play an important role in the interaction of the hydrogel backbone with molecules of both drugs.

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

2021

Kód důvěrnosti údajů

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

Název periodika

Macromolecular Chemistry and Physics

ISSN

1022-1352

e-ISSN

1521-3935

Svazek periodika

222

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

2100086

Kód UT WoS článku

000646753700001

EID výsledku v databázi Scopus

2-s2.0-85105077530