Background

Currently, nanotechnology and nanoparticles have quickly emerged and have gained the attention of scientists due to their massive applications in environmental sectors. However, these environmental applications of silver nanoparticles potentially cause serious effects on terrestrial and aquatic organisms. In the current study, freshwater fish C. carpio were exposed to blood-mediated silver nanoparticles for toxicity, mortality, bioaccumulation, and histological alterations. Silver nanoparticles were fabricated using animal blood serum and their toxic effect was studied against common carp fish at different concentrations levels (0.03, 0.06, and 0.09 mg/L).

Results

The findings have revealed a little influence of blood-induced silver nanoparticles on fish behavior at the highest concentration (0.09 mg/L). However, bioaccumulation of blood-mediated silver nanoparticles was reported in different organs of fish. Maximum bioaccumulation of silver nanoparticles was reported in the liver, followed by the intestine, gills, and muscles. Furthermore, the findings have shown that the bioaccumulation of silver nanoparticles led to histopathological alterations; including damaged structure of gill tissue and have caused necrosis. It is summarized that histopathological alteration in gill and intestine mostly occurred by the highest concentration of blood-induced silver nanoparticles (0.09 mg/L).

Conclusion

This study provides evidence of the silver nanoparticles influence on aquatic life; however, further systematic studies are crucial to access the effects of AgNPs on aquatic life.

中文翻译：

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长期暴露于高浓度银纳米颗粒会导致鱼类（鲤属）的毒性，致死性，生物蓄积性和组织学改变

背景

当前，由于纳米技术和纳米颗粒在环境领域的大量应用，纳米技术和纳米颗粒已经迅速出现并引起了科学家的关注。但是，银纳米颗粒的这些环境应用可能会对陆生和水生生物造成严重影响。在当前的研究中，淡水鱼鲤鱼暴露于血液介导的银纳米颗粒，以提高毒性，死亡率，生物蓄积性和组织学改变。使用动物血清制备了银纳米颗粒，并研究了它们在不同浓度水平（0.03、0.06和0.09 mg / L）下对鲤鱼的毒性作用。

结果

研究结果表明，在最高浓度（0.09 mg / L）下，血液诱导的银纳米颗粒对鱼类行为的影响很小。然而，据报道在鱼类的不同器官中血液介导的银纳米颗粒具有生物蓄积性。据报道，银纳米颗粒在肝脏中具有最大的生物蓄积性，其次是肠道，腮和肌肉。此外，研究结果表明，银纳米粒子的生物蓄积导致组织病理学改变。包括g组织的损坏，并引起坏死。可以得出结论，g和肠道的组织病理学改变主要是由血液诱导的银纳米颗粒的最高浓度（0.09 mg / L）引起的。

结论

这项研究提供了银纳米颗粒对水生生物影响的证据。但是，进一步的系统研究对于获取AgNP对水生生物的影响至关重要。