"Nano" is a unit of length of matter, equal to one billionth of a meter.
When matter is as small as nanoscale, it may exhibit characteristics in electronics, optics, mechanics, etc. that surpass or even be completely different from those of large-scale matter.
As drug carriers, nanoparticles have the advantages of high targeting, controlled drug release, and improved drug dissolution and absorption rates. Some nanomaterials have also been proven to be highly effective new drugs in their own right.
Due to their unique properties, nanomaterials are widely used in the pharmaceutical industry. For example, based on the fluorescence effect of quantum dots, the magnetic effect of magnetic nanomaterials, the adsorption effect of nanomaterials, etc., the sensitivity of detection can be greatly improved, which is beneficial to the early detection of diseases.