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In this research, we synthesized the Fe3O4/CuO/ZnO@MWCNT magnetic nanocomposites using water extract of Petasites hybridus rhizome, and the high performance of synthesized catalyst was confirmed by using in the solvent-free multicomponent reactions of isatoic anhydride, N-methylimidazole, alkyl bromides, activated acetylenic compounds and 2-aminoacetonitrile at ambient temperature for the production of new cyanopyrroloazepine derivatives in high yields. This catalyst could be used several times in these reactions and have main role in the yield of product. The synthesized cyanopyrroloazepines have NH groups in their structure and for this reason have good antioxidant activity. Also, employing Gram-positive and Gram-negative bacteria in the disk diffusion procedure confirmed some cyanopyrroloazepines antimicrobial effect. The results showed that synthesized cyanopyrroloazepine prevented the bacterial growth. This used process for preparation of new cyanopyrroloazepine has some improvements such as low reaction time, product with high yields, simple separation of catalyst and products.

Background:. Skin lesions and traumas can affect the skin by leaving scars. The purpose of this study was evaluating the results of a new technique in reconstructive surgery of scars on the nose. In this technique, extra skin remaining from reduction rhinoplasty is applied to the defect remained from removing the scar. Methods:. This is a retrospective cross-sectional study performed on 33 patients who underwent reduction rhinoplasty from 2013 to 2018 due to scars on the dorsal nasal skin. Five sets of standards, criteria, and questionnaires were used to evaluate the cosmetic outcomes, scars, and nasal function. These included the Cakir concept, visual analogue scale, patient reported outcome measurement, Stony Brook scar evaluation scale, and sino-nasal outcome test-22. Results:. According to the surface polygon concept, or Cakir concept, the number of affected polygons due to scars decreased in all included patients (P < 0.05). In addition, constant improvement in patients’ satisfaction, based on patient reported outcome measurement (P < 0.001) and visual analogue scale (P ≤ 0.05), as well as physicians’ satisfaction, based on Stony Brook scar evaluation scale, were determined. Furthermore, evaluating the patients’ breathing, based on sino-nasal outcome test-22 criteria (P < 0.09), indicated no adverse effects. Conclusion:. Excision of scars from dorsal nasal skin and conducting rhinoplasty surgery from the same access can be considered an option for reconstructing nasal scars.