Particles that are larger than 100 nanometers in all dimensions are referred to as what?

Particles that are larger than 100 nanometers in all dimensions are classified as bulk materials. This classification is significant in the field of nanotechnology and materials science, as it helps differentiate materials based on their size and the resulting properties that emerge at different scales.

Bulk materials, being larger than the nanoscale, typically exhibit different physical and chemical properties compared to nanoscale materials. For example, while nanoscale materials often have unique optical, electrical, and surface properties that arise due to their high surface area to volume ratio and quantum effects, bulk materials tend to behave more like traditional materials without exhibiting these nanoscale characteristics. This distinction is crucial for applications in various fields, including electronics, medicine, and materials engineering.

Other classifications, such as microscale materials or colloids, describe different size ranges or physical states and do not apply to particles larger than 100 nanometers when considering all dimensions. Nanoscale materials refer specifically to particles typically in the range of 1 to 100 nanometers. Understanding these distinctions is fundamental in the study and application of nanotechnology.