Amphiphilic structures in physically crosslinked hydrogels-A comprehensive rheological study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F26%3A0200012" target="_blank" >RIV/00216305:26310/26:0200012 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0927775725023246" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0927775725023246</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfa.2025.138421" target="_blank" >10.1016/j.colsurfa.2025.138421</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Amphiphilic structures in physically crosslinked hydrogels-A comprehensive rheological study

Popis výsledku v původním jazyce

Hydrogels are naturally occurring and found all around us. Their applications and ability to be tailored to specific needs make them a highly relevant topic today. The biomedical and pharmaceutical industries are particularly invested in hydrogel development due to their desirable properties, such as biodegradability and bioactivity. Physically crosslinked hydrogels meet these criteria exceptionally well. However, despite their many advantages, they suffer from weaker mechanical properties compared to chemically crosslinked hydrogels. This study aimed to address this issue by modifying hydrogels through the incorporation of amphiphilic substances-specifically, classical surfactants differing in charge, molecular weight, and structure (CTAB, SDS, Triton X-100). The micellar structures formed within the hydrogel matrix significantly influence its overall properties. The primary focus of this research was on mechanical properties and their in-depth rheological characterization. All results were compared against samples without surfactants, as well as those containing surfactants at concentrations below and above the critical micelle concentration (CMC). The findings demonstrate that physically crosslinked hydrogels can be modified with amphiphilic structures to achieve precise property adjustments. This effect is particularly evident in relaxation behaviour, where amphiphiles exert a notable influence. Additionally, the conclusions regarding mechanical characterization were reinforced by morphological analysis using scanning electron microscopy (SEM).

Název v anglickém jazyce

Amphiphilic structures in physically crosslinked hydrogels-A comprehensive rheological study

Popis výsledku anglicky

Hydrogels are naturally occurring and found all around us. Their applications and ability to be tailored to specific needs make them a highly relevant topic today. The biomedical and pharmaceutical industries are particularly invested in hydrogel development due to their desirable properties, such as biodegradability and bioactivity. Physically crosslinked hydrogels meet these criteria exceptionally well. However, despite their many advantages, they suffer from weaker mechanical properties compared to chemically crosslinked hydrogels. This study aimed to address this issue by modifying hydrogels through the incorporation of amphiphilic substances-specifically, classical surfactants differing in charge, molecular weight, and structure (CTAB, SDS, Triton X-100). The micellar structures formed within the hydrogel matrix significantly influence its overall properties. The primary focus of this research was on mechanical properties and their in-depth rheological characterization. All results were compared against samples without surfactants, as well as those containing surfactants at concentrations below and above the critical micelle concentration (CMC). The findings demonstrate that physically crosslinked hydrogels can be modified with amphiphilic structures to achieve precise property adjustments. This effect is particularly evident in relaxation behaviour, where amphiphiles exert a notable influence. Additionally, the conclusions regarding mechanical characterization were reinforced by morphological analysis using scanning electron microscopy (SEM).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Colloids and surfaces. A, Physicochemical and engineering aspects

ISSN

0927-7757

e-ISSN

1873-4359

Svazek periodika

—

Číslo periodika v rámci svazku

727

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

17

Strana od-do

—

Kód UT WoS článku

001582672800001

EID výsledku v databázi Scopus

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