Magnetic nanomaterials are tiny particles, typically less than 100 nanometers in size, that exhibit magnetic properties. These materials can be made from various substances, including metals like iron and cobalt, or metal oxides such as magnetite. Their small size allows them to have unique magnetic behaviors that differ from their bulk counterparts, making them useful in various applications. Due to their magnetic characteristics, magnetic nanomaterials are used in fields like medicine for targeted drug delivery and data storage in electronics. They can also enhance imaging techniques, such as magnetic resonance imaging (MRI), by improving contrast and resolution.