Which of the following is NOT a function of nanotechnology?

Nanotechnology primarily focuses on the manipulation and creation of materials at the nanoscale, typically between 1 to 100 nanometers. This field enables the development of highly specialized applications due to the unique properties that materials exhibit at this scale. For instance, creating tiny sensors allows for advanced detection capabilities in various fields, including environmental monitoring and health diagnostics. Improving medical devices through nanotechnology can enhance their effectiveness, such as targeted drug delivery systems that operate at the cellular level. Additionally, enhancing material properties, such as strength or electrical conductivity, benefits from nanotechnology applications because alterations at the nanoscale can significantly improve performance.

In contrast, developing large machinery is not a function of nanotechnology. This is because nanotechnology is fundamentally concerned with small-scale applications rather than the design or fabrication of large structures or machinery. While nanotechnology can play a role in components of larger systems, the focus of the question is on the scale of manipulation, where large machinery does not fit within the domain of nanotechnology. Thus, it stands apart from the other choices that align more closely with the principles and applications of the field.