Catanionic vesicles and their complexes with hyaluronan – A way how to tailor physicochemical properties via ionic strength
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F23%3APU146627" target="_blank" >RIV/00216305:26310/23:PU146627 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0167732222026289" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167732222026289</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molliq.2022.121089" target="_blank" >10.1016/j.molliq.2022.121089</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Catanionic vesicles and their complexes with hyaluronan – A way how to tailor physicochemical properties via ionic strength
Popis výsledku v původním jazyce
This article offers a comprehensive description of how a change in ionic strength influences the physicochemical properties of dilute solutions of catanionic vesicular systems. Catanionic vesicles are formed from HTMA-DS (hexadecyltrimethylammonium-dodecyl sulphate) ion pair amphiphiles, which were doped by cholesterol and positively charged double-chained surfactant. Due to this positive charge, they can interact with oppositely charged polymers, such as hyaluronan, to form hyaluronan-coated vesicles. Vesicle kinetic stability can be affected by changes in the ionic strength of the environment, which are represented by the addition of sodium chloride. In our study, with the increasing addition of salt, the f-potential, as the main parameter of kinetic stability, decreased to zero both for coated and uncoated vesicles. Furthermore, the size of vesicles increased above a concentration of 15 mM NaCl. The membrane rigidity represented by fluorescence anisotropy, of uncoated vesicles decreased rapidly, and slight dehydration of their outer part was observed, which was confirmed by high resolution ultrasonic spectroscopy. Hyaluronan-coated vesicles formed visible aggregates with gradual additions of salt, which were subsequently disintegrated, the degree of disintegration varying for different polymer concentrations. The viscosity of the whole system also decreased significantly with increasing salt concentration.
Název v anglickém jazyce
Catanionic vesicles and their complexes with hyaluronan – A way how to tailor physicochemical properties via ionic strength
Popis výsledku anglicky
This article offers a comprehensive description of how a change in ionic strength influences the physicochemical properties of dilute solutions of catanionic vesicular systems. Catanionic vesicles are formed from HTMA-DS (hexadecyltrimethylammonium-dodecyl sulphate) ion pair amphiphiles, which were doped by cholesterol and positively charged double-chained surfactant. Due to this positive charge, they can interact with oppositely charged polymers, such as hyaluronan, to form hyaluronan-coated vesicles. Vesicle kinetic stability can be affected by changes in the ionic strength of the environment, which are represented by the addition of sodium chloride. In our study, with the increasing addition of salt, the f-potential, as the main parameter of kinetic stability, decreased to zero both for coated and uncoated vesicles. Furthermore, the size of vesicles increased above a concentration of 15 mM NaCl. The membrane rigidity represented by fluorescence anisotropy, of uncoated vesicles decreased rapidly, and slight dehydration of their outer part was observed, which was confirmed by high resolution ultrasonic spectroscopy. Hyaluronan-coated vesicles formed visible aggregates with gradual additions of salt, which were subsequently disintegrated, the degree of disintegration varying for different polymer concentrations. The viscosity of the whole system also decreased significantly with increasing salt concentration.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
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OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
<a href="/cs/project/GC19-14024J" target="_blank" >GC19-14024J: Hyaluronan-kataniontové vezikulární komplexy - interakce, struktura, fyzikální vlastnosti a stabilita</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
JOURNAL OF MOLECULAR LIQUIDS
ISSN
0167-7322
e-ISSN
1873-3166
Svazek periodika
371
Číslo periodika v rámci svazku
121089
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
12
Strana od-do
1-12
Kód UT WoS článku
000918829600001
EID výsledku v databázi Scopus
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