银纳米粒子(AgNPs)用途广泛,用途多样,包括医学,电子,和纺织品。然而,它们越来越多的使用引起了人们对其潜在环境影响的担忧,特别是在水生生物上,比如鱼,它们是水生环境的主要消费者,可以通过各种途径暴露于AgNPs。为此,植物Bellisperennis的叶子被用作还原剂将硝酸银转化为AgNPs,评估其对鱼类的毒性。使用分析技术获得并确认了分散良好和尺寸不足的AgNPs,包括扫描电子显微镜(SEM)和透射电子显微镜(TEM)。此外,AgNPs对嗜水气单胞菌(25.71±0.63)和哈氏弧菌(22.39±0.29)具有明显的抗菌活性。此外,通过将鲤鱼暴露于各种浓度来评估获得的AgNPs的毒性,包括0.06、0.1和0.2mg/L研究结果表明,AgNPs在肠道中显著积累,紧随其后的是ill,肝脏,肌肉,肾,和大脑。这种生物积累导致肠绒毛的组织学改变和破坏,肝细胞再生,和ill片的退化。研究重点:基于植物的AgNPs合成通常被认为是生态友好的。获得了显着的抗菌活性。发现植物介导的AgNPs毒性较低。AgNPs深刻积累并引起组织学改变。
Silver nanoparticles (AgNPs) are widely used and have various applications, including medicine, electronics, and textiles. However, their increasing use raises concern about their potential environmental impact, particularly on aquatic organisms, such as fish, which are the primary consumers of aquatic environments and can be exposed to AgNPs through various routes. For this purpose, the leaves of the plant species Bellis perennis were used as a reductive agent to convert silver nitrate into AgNPs, to assess its toxicity against fish. Well-dispersed and undersized AgNPs were obtained and confirmed using analytical techniques, including Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). Moreover, the AgNPs have shown significant antibacterial activity against Aeromonas hydrophila (25.71 ± 0.63) and Vibrio harveyi (22.39 ± 0.29). In addition, the toxicity of the obtained AgNPs was assessed by exposing Cyprinus carpio to various concentrations, including 0.06, 0.1, and 0.2 mg/L. The findings revealed that the AgNPs were significantly accumulated in the intestine, followed by the gills, liver, muscles, kidney, and brain. This bioaccumulation led to histological alterations and destruction in the villi of the intestine, regeneration of liver cells, and degeneration of the gill lamella. RESEARCH HIGHLIGHTS: Plants based synthesis of AgNPs is mostly considered as eco-friendly A significant antibacterial activity was obtained The plant mediated AgNPs were found less toxic The AgNPs was profoundly accumulated and causes histological alterations.