Nanoengineering focuses on developing and refining materials at an incredibly small scale, applying nanoscience practically, similar to how mechanical engineering uses physics. The term "nano" means one billionth (10^-9). Nanotechnologyengineering involves manipulating nanomaterials to create useful structures and devices. Also known as NanoEngineering, this field encompasses the study and application of nanotechnology.
Nanotechnology engineers work with the smallest elements of science, from altering materials at the cellular level to designing tiny electronic components. While "nanoengineering" focuses more on engineering, "nanotechnology" covers the broader scientific and technological aspects.