Nanorods are elongated nanoparticles typically ranging from 1 to 100 nanometers in diameter and 10 to 1000 nanometers in length. Their unique geometry imparts distinct optical, electronic, and thermal properties, making them valuable in various applications. In biomedical fields, nanorods are utilized for imaging, drug delivery, and photothermal therapy due to their ability to convert light into heat. In electronics, they serve as components in sensors and transistors, enhancing performance at nanoscale dimensions. Additionally, nanorods are used in solar cells to improve energy efficiency and in catalysis to accelerate chemical reactions, highlighting their versatility in advanced technologies.