The use of viable cells in the green production of nanoparticles (NPs) is a promising and unique method in nanotechnology. The purpose of this work is to provide a comprehensive dissection on the use of various extracts of plant parts in the synthesis of bimetallic nanoparticles (BMNPs). In comparison to the physical and chemical methods, green nanotechnology based on biosynthesis has recently attracted a lot of attention. Biosynthesis has been discovered to be more energy-efficient and capable of avoiding the usage of toxic chemicals. Several strategies have recently been employed to boost the productivity of nanoparticles with varying sizes, shapes, and stability. The shape, size, surface charge, and surface area of NPs have all been associated with their mechanical, optical, magnetic, and chemical properties. The impact of various reaction conditions such as pH, plant extract concentration, reaction temperature, and ionic ratio on the synthesis of bimetallic nanoparticles is also discussed to provide a thorough knowledge of how these variables affect the development of bimetallic nanoparticles. Different techniques are used to detect and analyze biosynthesized NPs, such as UV–vis spectroscopy, FT-IR, TEM, SEM, AFM, DLS, XRD, zeta potential studies, and so on. The green method of NP synthesis can be used in a variety of biotechnological sectors.

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