Environmental pollution is serious threat for all living organisms. Nanoparticle synthesis using green approach is a non-toxic, easy and energy saving process. Varieties of species have the unique capability to synthesize commercially useful nanoparticles from various metal salt precursors that can help in environmental remediation. The combination of nanotechnology and bioremediation is known as Nanobioremediation. Researchers have shown that biologically nanoparticles shows great potential in reducing environmental pollution from water and soil by adsorption of pollutants and harmful toxic substances from their environment .These greennanoparticles can converttoxic chemicals into less toxic form. Studies also shown that metal nanoparticles also help in removal of harmful bacteria and fungi from environment which can cause diseases in living system. Green synthesised nanoparticles shows very promising results when it comes to environmental remediation they have been used as dye degrader, Oil degrader, photocatalytic agents, biosensors, heavy metals and persidtent organic particulate (POPs) absorbers etc. This review focus on the current status of different types of biologically synthesised nanoparticles in environmental pollution from different species and future challenges associated with environmental remediation.

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生物合成纳米粒子在环境污染修复中的作用

环境污染是对所有生物体的严重威胁。使用绿色方法合成纳米粒子是一种无毒、简单且节能的过程。各种物种具有独特的能力，可以从各种有助于环境修复的金属盐前体合成商业上有用的纳米粒子。纳米技术和生物修复的结合被称为纳米生物修复。研究人员已经表明，生物纳米粒子通过吸附环境中的污染物和有害有毒物质，在减少水和土壤的环境污染方面显示出巨大的潜力。这些绿色纳米粒子可以将有毒化学物质转化为毒性较小的形式。研究还表明，金属纳米粒子还有助于从环境中清除可能导致生命系统疾病的有害细菌和真菌。绿色合成纳米粒子在环境修复方面显示出非常有前途的结果，它们已被用作染料降解剂、油类降解剂、光催化剂、生物传感器、重金属和持久性有机颗粒 (POPs) 吸收剂等。这篇综述重点介绍了不同技术的现状不同物种环境污染中生物合成纳米粒子的类型以及与环境修复相关的未来挑战。