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抗菌协同作用:评估纳米氧化锆颗粒与选定抗生素联合对尿路感染分离株的影响。

Antibacterial Synergy: Assessing the Impact of Nano Zirconium Oxide Particles in Combination with Selected Antibiotics on and Isolates from Urinary Tract Infections.

作者信息

Algabar Fatima Amer Abd, Ahmed Dhea Sadi, Abbod Lamiaa Saoud, Al-Obaidi Mudhar A

机构信息

Technical Institute of Baquba, Middle Technical University, Baquba, 32001 Iraq.

Technical Instructor Training Institute, Middle Technical University, Baghdad, 10074 Iraq.

出版信息

Indian J Microbiol. 2024 Dec;64(4):1894-1902. doi: 10.1007/s12088-024-01271-0. Epub 2024 Apr 13.

Abstract

Research for novel compounds that may block bacterial development has continued and prompted by antibiotic-resistant bacteria. The expenses of community for health care as a result of antibiotic resistance has indeed been remarkable during the last decades and demand immediate of medical attention. Consequently, this research presents the antibacterial effect of genuine metal oxide nanoparticles against () and that have been isolated from urinary tract infection patients. This is because metal oxide nanomaterials have already been utilised a compromise with some of its comprehensive implementations throughout the pharmaceutical and biological disciplines of nano-biotechnology. The biological activity of zirconium oxide (ZrO) nanoparticles against bacteria is investigated using agar well diffusion approach. The antibacterial efficiency of nanoparticles on and using both qualitative and quantitative assessment approaches is appraised. Specifically, an aseptic technique is used to collect fifty urine samples into sterile tubes. To inoculate the patients' midstream urine on both blood agar and MacConkey agar plates, the direct streaking approach is employed. Scanning electron microscopy (SEM) and X-Ray diffraction (XRD) techniques are used to signify the physical features nanoparticle including shape and size. The identified cubic components of SEM and XRD techniques indicate the existence of ZrO nanoparticles and magnetic nanoparticles of particle size ranges between 5 to 50 nm. According to the data, ZrO nanoparticles have a bacteriostatic effect at 0.1 mg/ml with an absorption of 0.2 and a bactericidal effect at 2 mg/ml with an absorption of 0.007 on E. col isolates. Additionally, ZrO nanoparticles exhibit bacteriostatic (at 0.1 mg/ml with absorption of 0.3) and bactericidal (at 2 mg/ml with absorption of 0.001) effects on isolates. Among all the antibiotics utilised, gentamicin shows the lowest rate of resistance, suggesting that it is more effective against and when ZrO is presented.

摘要

针对可能阻碍细菌生长的新型化合物的研究一直在持续进行,这是由抗生素耐药菌引发的。在过去几十年里,抗生素耐药性导致的社区医疗保健费用确实相当可观,需要立即引起医疗关注。因此,本研究展示了纯金属氧化物纳米颗粒对从尿路感染患者中分离出的()和()的抗菌效果。这是因为金属氧化物纳米材料在纳米生物技术的制药和生物学领域的一些综合应用中已被用作一种折衷方案。采用琼脂孔扩散法研究了氧化锆(ZrO)纳米颗粒对细菌的生物活性。通过定性和定量评估方法评估了纳米颗粒对()和()的抗菌效率。具体而言,采用无菌技术将五十份尿液样本收集到无菌试管中。采用直接划线法将患者的中段尿液接种到血琼脂平板和麦康凯琼脂平板上。使用扫描电子显微镜(SEM)和X射线衍射(XRD)技术来表征纳米颗粒的物理特征,包括形状和大小。SEM和XRD技术鉴定出的立方成分表明存在粒径范围在5至50纳米的ZrO纳米颗粒和磁性纳米颗粒。根据数据,ZrO纳米颗粒在0.1毫克/毫升、吸光度为0.2时对大肠杆菌分离株具有抑菌作用,在2毫克/毫升、吸光度为0.007时具有杀菌作用。此外,ZrO纳米颗粒对()分离株也表现出抑菌(在0.1毫克/毫升、吸光度为0.3时)和杀菌(在2毫克/毫升、吸光度为0.001时)作用。在所有使用的抗生素中,庆大霉素的耐药率最低,这表明当存在ZrO时,它对()和()更有效。

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