新型偶氮甲基螯合物对致病菌奇异变形杆菌的合成、理论研究、抗菌和抗生物膜活性。

IF 4.1 3区 生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Biometals Pub Date : 2024-05-30 DOI:10.1007/s10534-024-00608-y
Fatma I. Abouzayed, Rasha Mohammad Fathy, Shimaa G. Hussien, Gharieb S. El-Sayyad, Saeyda A. Abouel-Enein
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引用次数: 0

摘要

合成了 2-((1-(4-((2,4,6-三氧六氢嘧啶-5-基)偶氮)苯基)亚乙基)氨基)苯甲酸 (H3L) 及其 V(IV)、Co(II)、Ni(II)、Cu(II)、Pd(II) 和 Ag(I) 螯合物。使用多种光谱和分析技术对它们进行了定义。除 Ag(I) 螯合物外,所有螯合物都具有非电解特性。V(IV)螯合物呈方形金字塔状,其他螯合物呈方形平面状。对 H3L 及其配位化合物的官能团带分析表明,H3L 通过偶氮和偶氮胺基的氮原子、巴比妥酸羰基的氧原子和羧基的羟基螯合成中性四价螯合物。TG/DTG 预测了所有化合物的热行为。在 250、500 和 1000 微克/毫升的浓度下,H3L 及其配位化合物对变形杆菌具有抗菌活性。浓度为 1000 µg/mL 的 Ag(I) 对奇异变形杆菌的抑制作用最强,抑制区为 28.33 ± 0.84 mm,对生物膜的抑制率最高,达到 70.31%。在 50 Gy 伽马辐照下,Ag(I)螯合物的还原效果有所提高。随着螯合剂浓度的增加,P. mirabilis 的蛋白质抑制作用也大大减弱。此外,Ag(I)的细胞毒性最高,IC50 值为 11.5 µg/ mL。这项研究的新颖之处在于合成了一种新的偶氮-希夫碱,这几乎是首次发表偶氮-希夫配体对奇异变形杆菌菌株的作用。
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Synthesis, theoretical studies, antibacterial, and antibiofilm activities of novel azo-azomethine chelates against the pathogenic bacterium Proteus mirabilis

2-((1-(4-((2,4,6-trioxohexahydropyrimidin-5-yl)diazenyl) phenyl) ethylidene) amino) benzoic acid (H3L), and its V(IV), Co(II), Ni(II), Cu(II), Pd(II) and Ag(I) chelates were synthesized. They were defined using multiple spectral and analytical techniques. With the exception of Ag(I) chelate, all chelates possessed non-electrolytic character. Square pyramidal shape was proposed for V(IV) chelate and Square planar for the other chelates. The analysis of functional group bands of H3L and its coordination compounds alludes that H3L chelated as neutral tetradentate via nitrogen atoms of azo and azomethine groups, oxygen atom of carbonyl of barbituric acid and OH of the carboxylic group. TG/DTG predicted the thermal behaviors of all compounds. The antibacterial activity of H3L and its coordination compounds was conducted against Proteus mirabilis at concentrations of 250, 500, and 1000 µg/mL. Ag(I) at 1000 µg/mL, showed the most inhibiting potency against P. mirabilis and registered zone of inhibition of 28.33 ± 0.84 mm and highest biofilm inhibition of 70.31%. At 50 Gy of gamma irradiation, the reducing effect of Ag(I) chelate was improved. The protein interruption of P. mirabilis was greatly interrupted by increasing the concentration of the chaletes. Also, Ag(I) showed the highest cytotoxicity with IC50 value of 11.5 µg/ mL. The novelty of this study is the synthesis of a new azo-Schiff base and this is almost the first publication of the effect of azo-Schiff ligands against that bacterial strain P. mirabilis.

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来源期刊
Biometals
Biometals 生物-生化与分子生物学
CiteScore
5.90
自引率
8.60%
发文量
111
审稿时长
3 months
期刊介绍: BioMetals is the only established journal to feature the important role of metal ions in chemistry, biology, biochemistry, environmental science, and medicine. BioMetals is an international, multidisciplinary journal singularly devoted to the rapid publication of the fundamental advances of both basic and applied research in this field. BioMetals offers a forum for innovative research and clinical results on the structure and function of: - metal ions - metal chelates, - siderophores, - metal-containing proteins - biominerals in all biosystems. - BioMetals rapidly publishes original articles and reviews. BioMetals is a journal for metals researchers who practice in medicine, biochemistry, pharmacology, toxicology, microbiology, cell biology, chemistry, and plant physiology who are based academic, industrial and government laboratories.
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