Nanotechnology involves the creation of new materials, devices, and systems that have novel properties and functions due to their small size. These properties can include:

1. Increased surface area: Nanomaterials have a larger surface area-to-volume ratio, which can enhance their reactivity, conductivity, and optical properties.
2. Quantum effects: At the nanoscale, quantum effects become significant, allowing for the manipulation of electrons and other particles in ways that are not possible at larger scales.
3. Unique mechanical properties: Nanomaterials can exhibit unusual mechanical properties, such as increased strength, stiffness, and toughness.
4. Enhanced reactivity: Nanomaterials can react more quickly and efficiently due to their increased surface area and unique chemical properties.