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- 저자 : ( Atefeh Babaei ) (검색결과 2 건)
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Stefan Talu,Miroslaw Bramowicz,Slawomir Kulesza,Atefeh Ghaderi,Hadi Savaloni,Reza Babaei,Shahram Solaymani 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.43 No.-
This study presents research into the three-dimensional (3-D) surface texture of silver chiralnanoflowers with three-, four- and five-folds spatial symmetry, which were produced using obliqueangle deposition method with rotating sample holder. X-ray diffraction (XRD), atomic force microscopy(AFM), and field-emission scanning electron microscopy (FESEM) measurements were carried out inorder to study 3-D morphology and structure of the samples at the nanoscale. Obtained results werefound to provide an insight into important relationships between the structure of prepared nanoflowersand their properties. Results presented in the paper proved the usefulness of the method for preparationof high-quality, sculptured 3-D nanostructures with pre-designed shapes (with narrower and longerpetals) and desired porosity. Specific structure, shape, and length scale of the 3-D deposits can be thenverified in simulations for quick characterization of the samples. This analysis helps to understand theirfunctional role in the test surface, in order to evaluate the relation among the 3-D microtextured surface.
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( Gholamreza Bahrami ),( Hossein Malekshahi ),( Shahram Miraghaee ),( Hamid Madani ),( Atefeh Babaei ),( Bahareh Mohammadi ),( Razieh Hatami ) 한국임상영양학회 2020 Clinical Nutrition Research Vol.9 No.3
Ulcerative colitis (UC) is a chronic intestinal inflammation. Common clinical symptoms are weight loss, diarrhea, ulcers, and inflammation. Aloe vera (AV) has several medicinal properties including antioxidant, anti-inflammatory analgesic, and improvement of gastric and skin ulcers. This study aimed to investigate the protective and therapeutic effects of AV gel on acetic acid-induced UC in rats. UC was induced in 48 rats by injection of 4% acetic acid into the rectum. Protective and treatment groups received treatments 7 days before and after the induction of colitis, respectively. The negative control group, the positive control group, and AV groups received distilled water, sulfasalazine, and 50 and 300 mg/kg of gel extract, respectively. Water and food intake and body weight changes were recorded. The extent of the mucosal ulcers, colon tissue thickening, and mucosal bleeding were scored by the Gerald classification system score (microscopy observations). Slides of tissues were prepared for pathologic assay using the modified Wallace method (macroscopic observations). The results of the macroscopic and microscopic examination showed protective and therapeutic effects of 50 mg/kg dose of AV on acetic acid-induced colitis in rats which reduces the inflammation, ulcers and tissue damage compared with negative control (p < 0.05). There were no significant changes in the amount of water and food intake, body weight changes, and colon weight in protective and treatment groups. Based on the results, AV gel could be used to improve the symptoms of UC, as well as prevent people who are susceptible to the UC.
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