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      • Open Access Article

        1 - Preparation and Characterization of Magnetic Gelatin-Polyvinyl Alcohol Hydrogel for using in the Release of Furosemide Drug
        Benyamin Masoumi Masoud Mokhtary
      • Open Access Article

        2 - The Effects of Chitosan/Polyvinilalchol Nanofibers Scaffold on Skin Burns in Adult Male NMRI Mouse
        لیلا ریاحی نسیم حیاتی رودباری سهیلا سلحشور کردستانی کاظم پریور
        To repair the wounds of burns a wide range of research including the use of bio-scaffolds due to ability to achieve the desired characteristics has been done. According to favorable biological properties of chitosan such as biocompatibility, antimicrobial properties and More
        To repair the wounds of burns a wide range of research including the use of bio-scaffolds due to ability to achieve the desired characteristics has been done. According to favorable biological properties of chitosan such as biocompatibility, antimicrobial properties and the ability to improve wound healing in biomedical applications, and also due to biocompatibility and lack of stimulation of the immune system of polyvinyl alcohol, the authors decided to investigate the in-vivo effect of Nanofiber scaffolds on the mix of these two polymers on damaged skin.30 NMRI male mice were randomly divided in to a control group and three experimental groups (Scaffolding chitosan: polyvinylalcohol ratio of 0.100, 20.80, 30.70).Under sterile conditions and anesthesia, a 1 cm in diameter and full thickness skin wounds was created on the back of each mouse. Electrospinning nanofiber scaffolds were applied as wound dressing to cover the burn. The burn area was sterile every day and scaffolding was dressing on the wound. After 21 days histological studies have been done on the wound. The results showeda significant meaningful reduction in wound diameter in the experimental group in comparison to control group(p Also increase in the rate of wound shrinkage has been seen in samples containing scaffolds compared to control samples. Manuscript profile
      • Open Access Article

        3 - Construction and Characterization of polyvinyl alcohol-sodium alginate magnetic hydrogel for use in release of famotidine
        Mahdiyeh Poorgholam Masoud Mokhtary mohammad alikarami
        Abstract Polyvinyl alcohol-sodium alginate magnetic hydrogel was prepared using K2S2O8 in aqueous media in the presence of N,N′-methylenebisacrylamide and Fe3O4 nanoparticles. The magnetic polyvinyl alcohol-sodium alginate (nano-Fe3O4/PVA-SA) hydrogel was characteriz More
        Abstract Polyvinyl alcohol-sodium alginate magnetic hydrogel was prepared using K2S2O8 in aqueous media in the presence of N,N′-methylenebisacrylamide and Fe3O4 nanoparticles. The magnetic polyvinyl alcohol-sodium alginate (nano-Fe3O4/PVA-SA) hydrogel was characterized by FTIR, SEM, and EDX methods. Also, magnetic characterization of the synthesized nanoFe3O4/PVA-SA hydrogel was identified by vibrating sample magnetometer (VSM) method. Then, loading and release of famotidine drug was studied by nano-Fe3O4/PVA-SA hydrogel. The FT-IR results confirmed the formation of nano-Fe3O4/PVA-SA hydrogel. The effects of temperature and pH on the loading and release of famotidine drug in gelatin-polyvinylalcohol magnetic hydrogel were studied. The polyvinyl alcohol-sodium alginate magnetic hydrogel is sensitive to pH and temperature and provides the controlled release of famotidine. The results showed that the highest drug loading was achieved at 37 °C after 6 hours. Farther more, the highest drug release rate was obtained after 6 hours at 37 °C at pH = 2 with 57.95 ppm. Manuscript profile