Abstract：
Magnetic iron-based nanoparticles have been found to stimulate algae growth and harvest, repair disintegrated particles and improve stability, and facilitate operation in extreme environments, which help improve the wide application of algal-bacterial technology. Nevertheless, up to now, no literature collected to systematically review the research progress of on the employment of magnetic iron-based nanoparticles in the algal-bacterial system. This review summarizes the special effects (e.g., size effect, surface effect and biological effect) and corresponding properties of magnetic iron-based nanoparticles (e.g., magnetism, adsorption, electricity, etc.), which is closely related to biological effects and algal-bacterial behaviors. Additionally, it was found that magnetic iron-based nanoparticles offer remarkable impacts on improving the growth and metabolism of algal-bacterial consortia and the mechanisms mainly include its possible iron uptake pathways in bacteria and/or algae cells, as well as the magnetic biological effect of magnetic iron-based nanoparticles on algae-bacteria growth. Furthermore, in terms of the mechanism for establishing the algae-bacteria symbiotic relationship, the most recent works reveal that the charge effect, material transfer and signal transmission of magnetic iron-based nanoparticles possess a large array of potential mechanisms by which it can affect the establishment of algal-bacterial symbiosis. This discussion is expected to promote the progress of magnetic iron-based nanoparticles, as an eco-friendly, convenient and cost-effective technology that can be applied in algal-bacterial wastewater treatment fields.
摘要：
已经发现磁性铁基纳米颗粒可以刺激藻类生长和收获，修复崩解颗粒，提高稳定性，并促进在极端环境中的操作，这有助于提高藻细菌技术的广泛应用。然而，到现在为止,没有文献收集，系统地回顾了磁性铁基纳米颗粒在藻类-细菌系统中的应用研究进展。这篇综述总结了特效(例如，尺寸效应,表面效应和生物效应)和磁性铁基纳米颗粒的相应性质(例如，磁性，吸附，电力,等。),这与生物学效应和藻类-细菌行为密切相关。此外,研究发现，磁性铁基纳米颗粒对改善藻类-细菌聚生体的生长和代谢具有显著影响，其机制主要包括其在细菌和/或藻类细胞中可能的铁摄取途径，以及磁性铁基纳米颗粒对藻类细菌生长的磁性生物效应。此外，在建立藻类-细菌共生关系的机制方面，最近的作品揭示了电荷效应，磁性铁基纳米颗粒的材料转移和信号传递具有大量潜在机制，通过这些机制可以影响藻类-细菌共生的建立。该讨论有望促进磁性铁基纳米颗粒的进展，作为一个生态友好型，方便，经济有效的技术，可应用于藻类-细菌废水处理领域。
