Nanotechnologists are scientists and engineers who specialize in the study and manipulation of materials at the nanoscale, which is about 1 to 100 nanometers in size. This field combines elements of physics, chemistry, biology, and engineering to create new materials and devices with unique properties. Their work can lead to advancements in various industries, including medicine, electronics, and energy. These professionals often collaborate with researchers in related fields, such as biotechnology and materials science, to develop innovative solutions. For example, they may create targeted drug delivery systems in medicine or improve the efficiency of solar cells in energy applications.