The present book Microbial Synthesis of Nanomaterials is written mainly for the public's acquaintance with the synthesis and characterisation of different types of nanomaterials (NMs) and their sustainable applications in various fields. The nano-era began the late 1990s, after which the production of NMs increased rapidly and is expected to reach 1.663 million tons by the end of 2021. Recent findings have shown that NMs play a vital role in various fields like agriculture, food industries, environment, medicine and pharmaceutical, electronics, and so on. Microorganisms play a key role in the...