مهدی رسا
[ 1 ] - اثرات عصاره‌های آلی و آبی استخراج شده از توتیای دریایی خلیج فارس (Echinometra mathaei) بر سه سویه بیماری‌زای قارچ Candida
مطالعه حاضر در رابطه با اثرات ضدقارچی اجزای مختلف توتیای دریایی Echinometra mathaei صورت گرفته است. گنادها، پوسته، خارها و بخشدهانی توتیای دریایی مورد مطالعه قرار گرفتند. از سویه‌های قارچی Candida albicans، Candida glabrata و Candida parapsilosis به دلیل بیماری‌زا بودن و شیوع فراوان آن‌ها استفاده شد. توتیایدریایی از سواحل خلیج فارس جمعآوری شد و پس از کالبدشکافی، از بخش دهانی، گناد، پوسته...
[ 2 ] - Investigation of Acid-Neutralizing Property of Bacillus cereus GUF8
Extreme pHs, especially acidic pHs, are among the environmental stresses that some bacteria face. The most important strategies that bacteria employ for acid adaptation include either production of acidophilic proteins, or raising the pH of the microenvironment by secretion of basic compounds including ammonia produced by the action of urease. Considering the importance of acid-neutralizing bac...
[ 3 ] - Microwave-assisted synthesis of 5,10,15,20-tetrakis(4-nitrophenyl)porphyrin and zinc derivative and study of their bacterial photoinactivation
In this study, 5,10,15,20-tetrakis(4-nitrophenyl)porphyrin (TNPP) and its zinc porphyrin complex (ZnTNPP) were synthesized in situ using the microwave method and identified by UV-Vis, FT-IR and 1H NMR. The photostability and photodynamic antimicrobial activity (PACT) of these compounds were investigated on Pseudomonas aeruginosa and Bacillus subtilis under visible light irradiation. MIC, MBC an...
[ 4 ] - Aryl azo 5-arylidene-2,4-thiazolidinone dyes as novel antioxidant and antibacterial compounds
In the present study, nine bis-azo dyes based on 5-arylidene-2,4-thiazolidinone were obtained in two steps, using Knoevenagel condensation and azo coupling reactions. The structure of the dyes was confirmed on the basis of spectral data. Analysis of spectroscopic data shows that there is equilibrium between the azo and hydrazone tautomers for all dyes in solutions. Investigation of antioxidant ...
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