Flexible self-healing nanocomposite based gelatin/tannic acid/acrylic acid reinforced with zinc oxide nanoparticles and hollow silver nanoparticles based on porous silica for rapid wound healing

Authorsاشکان فراذین,مهدی محمدی مهر,حسین نعیمی
JournalInternational Journal of Biological Macromolecules
Page number1
Volume number241
IF8.2
Paper TypeFull Paper
Published At2023-04-24
Journal GradeScientific - research
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexSCOPUS ,JCR

Abstract

In this research, gelatin (Ge), tannic acid (TA), acrylic acid (AA) as a matrix are used. Zinc oxide (ZnO) nanoparticles (10, 20, 30, 40 and 50 wt.%) and hollow silver nanoparticles along with ascorbic acid (1, 3, and 5 wt.%) are considered as reinforcement. In order to prove the functional groups of nanoparticles made from Fourier-transform infrared spectroscopy (FTIR), and determine the existing phases of the powders in the hydrogel, X-ray diffraction (XRD) is used, also to investigate the morphology, size, and porosity of the holes and in the scaffolds, scanning electron microscope analysis is used (FESEM). Then, mechanical tests such as tension and compression test are performed to determine the most optimal state of the composite. Also, the antibacterial test is performed for the manufactured powders and hydrogel, as well as the toxicity test for the fabricated hydrogel. The results show that the sample (30 wt.% of zinc oxide and 5wt.% of hollow nanoparticles) is the most optimal hydrogel based on mechanical tests and biological properties.

tags: Mechanical tests; Self-healing; Hydrogel; Wound dressing; In vivo test; Hallow nanoparticles.