The field of Nanotechnology showed us how different materials provide various potential applications, including nanomedicine. In this talk, I will start with a brief introduction of my scientific life and how I came to study in the field of nanotechnology. Then I will discuss some of the properties and application of plasmonic gold nanorods in cancer treatment. Plasmonic gold nanorods (AuNRs) with a length: width ratio of 3:1 can absorb near-infrared (NIR) light and convert it to heat. If a solution containing AuNRs is injected into a cancerous tumor and exposed to NIR light, the hot solution preferentially heats the cancer cells, leading to their death. Treating cancer cells with hot AuNRs, can also stop the cancer cell migration process. This treatment can retard the ability of certain cancers to metastasize and infect other locations in the body, greatly increasing the rate of the patient's recovery.