Nanotechnology is about working with very tiny particles, smaller than a grain of dust, to make new materials and tools that have special abilities. These can be used in medicine, electronics, and industries. Microtechnology is similar but focuses on making small devices and systems that are a bit bigger than nanoscale, usually in the range of micro meters. Both these areas help create cutting-edge technologies like medicine that delivers drugs exactly where they're needed, sensors that detect things very precisely, and tiny computer parts like microchips. These technologies are used in many areas including healthcare, electronics, and making products.
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