Open AccessSmart hydrogels based on itaconic acid for biomedical application
Author(s) -
Simonida Lj. Tomić,
Mileva Mićić,
Bojana D. Krezović,
Sava N. Dobić,
E. Suljovrujić,
Jovanka M. Filipović
Publication year - 2009
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind0906603t
Subject(s) - self healing hydrogels , comonomer , biocompatibility , itaconic acid , copolymer , methacrylate , materials science , penetration (warfare) , polymer chemistry , chemistry , biomedical engineering , chemical engineering , polymer , composite material , medicine , operations research , engineering , metallurgy
pH and temperature sensitive hydrogels, based on 2-hydroxyethyl methacrylate (HEMA) and itaconic acid (IA) copolymers, were prepared by gamma irradiation and characterized in order to examine their potential use in biomedical applications. The influence of comonomer ratio in these smart copolymers on their morphology, mechanical properties, biocompatibility and microbe penetration capability was investigated. The mechanical properties of copolymers were investigated using the dynamic mechanical analysis (DMA), while their morphology was examined by scanning electron microscopy (SEM). The morphology and mechanical properties of these hydrogels were found to be suitable for most requirements of biomedical applications. The in vitro study of P(HEMA/IA) biocompatibility showed no evidence of cell toxicity nor any considerable hemolytic activity. Furthermore, the microbe penetration test showed that neither Staphylococcus aureus nor Escherichia coli passed through the hydogel dressing; thus the P(HEMA/IA) dressing could be considered a good barrier against microbes. All results indicate that stimuli-responsive P(HEMA/IA) hydrogels have great potential for biomedical applications, especially for skin treatment and wound dressings