The aim of nanoscience and nanotechnologies is to produce new or enhanced nanoscale materials. Nanomaterials are formed when materials have their properties changed at the nanoscale level. Nanomaterials involve elements that contain at least one nanoscale structure, but there are several subcategories that divide nanomaterials based on their shape and size. These materials include nanowires, nanotubes and nanoparticles such as quantum dots, along with nanocrystalline materials. While these are broader classifications of nanomaterials, each of them has several submaterials. Graphene is one popular submaterial and is an example of a nanoplate. The Integrated Nano-Science & Commodity Exchange, a self-regulated commodities exchange, includes a wide range of nanomaterials and related commodities and lists more than 1,000 nanomaterials. The exchange states that its entire product range is in excess of 4,500 products, including CNTs, graphene, graphite, ceramics, drug-delivery nanoparticles, metals, nanowires, micron powders, conductive inks, nano-fertilizers and nano-polymers.