Green synthesis, characterization and applications of manganese oxide nanoparticles

Nanotechnology is a promising and rapidly evolving field. Nanotechnology has received increased attention in recent years due to the need to create biocompatible materials for a variety of applications in fields such as health, medicine, water treatment and purification, and so on. Metal and Metal Oxide is one element of nanoscience and nanotechnology that has various applications in a variety of fields and has piqued the curiosity of academics. However, manganese and manganese oxide have received less attention as a high-performance metal in a variety of applications, including medicine, biomedicine, biosensors, water treatment and purification, electronics, electrochemistry, photo-electronics, catalysis, and so on. The standard methods of synthesizing nanoparticles can be harmful to the environment and living things. Thus, the greener way to nanoparticles (NPs) synthesis is recommended. It has various advantages, including being non-toxic, environmentally friendly, clean, less expensive, and almost new, as well as the ability to be done at room pressure and temperature. This review focuses on collection of comprehensive information from recent developments in the synthesis, characterization and applications from previous scientific findings on the biological method of synthesizing manganese oxide nanoparticles (MnO NPs) due to the aforementioned advantages. Green synthesis of MnO NPs leverages the benefits of bioactive compounds from plant extracts, which help in controlling the size, shape, and surface characteristics of the nanoparticles. This results in enhanced antibacterial activity, catalytic activity, electrochemical performance, magnetic behavior, and fluorescent properties while ensuring biocompatibility and environmental safety. Consequently, MnO NPs synthesized via green methods are highly suitable for a wide range of applications, including environmental remediation, electronics, biomedical imaging, and nutritional supplements.