Publications by authors named "Samia M Elsigeny"
Article Synopsis
- Vanillin-loaded hydrogel membranes made from PVA, chitosan, and itaconic acid were created through a freezing-thawing cycle method, confirming polymer chain entanglements.
- The study explored various physicochemical properties such as swelling ratio, mechanical characteristics, gel fraction percentage, hydrolytic degradation, and thermal stability, revealing that higher chitosan and itaconic acid content improved swelling and mechanical features but decreased gel fraction.
- Tests for cell viability and antimicrobial activity demonstrated that the hydrogels effectively supported cell survival and showed potential for use as antibacterial dressings or materials in wound healing.
In this study, poly(AA-co-ACMO) and polyurethane-based nanofibers were prepared in a ratio of 1:1 (NF11) and 2:1 (NF21) as antimicrobial carriers for chronic wound management. Different techniques were used to characterize the nanofibers, and poly(AA-co-ACMO) was mostly found on the surface of PU. With an increase in poly(AA-co-ACMO) dose from 0 (PU) and 1:1 (NF11) to 2:1 (NF21) in the casting solution, the contact angle (CA) was reduced from 137 and 95 to 24, respectively, and hydrophilicity was significantly increased.
View Article and Find Full Text PDFStudy has been made on the preparation of functionalized copolymer by grafting N,N-(dimethylaminoethyl) methacrylate (DMAEMA) onto polypropylene (PP) films using gamma-irradiation technique. The effect of monomer concentration and irradiation dose on the grafting yield was studied. It was found that grafting yield increases with increasing the monomer concentration and irradiation dose.
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