Nanometer (nm), also known as NM, as well as cm, DM and m, is a unit of measurement of length. Specifically, a nanometer is equal to the length of one-zero meters, equal to 4 times the Atomic size, one out of 10,000 hair thickness; figuratively speaking, a Nano-objects dropped on the table tennis is like a ping-pong ball placed on the Earth. This is the concept of nanometer length.
Spherical Nano Element surface area is proportional to the square of the diameter of the Particles, the volume is proportional to the cube of diameter, it is inversely proportional to its surface area and diameter. As the particle diameter gets smaller, specific surface area will increase significantly, indicating the percentage of atoms on the surface will be significantly increased. For diameters greater than 0.1 micron particle effects are negligible when at less than 0.1 micron sizes, a drastic increase as a percentage of surface atoms, even 1 g the sum of ultrafine particle surface area of up to 100 square meters, the surface effects can not be ignored. Super micro particles of surface and chunks objects of surface is is different of, if with high rate electronic microscope on gold super micro particles for TV camera, real-time observation found these particles no fixed of form, with time of changes will automatically formed various shape (as cubic eight surface body, ten surface body, 20 surface body more Ulrich,), it both different Yu General solid, and different Yu liquid, is a associate solid. Under electron beam irradiation in electron microscopy, surface atoms as if into the “boiling” status, size greater than 10 nm, I just don’t see this instability of the structure and micro-particles with a stable structure.
Hongwu International Group Ltd, with HWNANO brand, is a high-tech enterprise focusing on manufacturing, research, development and processing of nanoparticles,nanopowders, nanowires,Nano Element Particles. oxides. We have our own nano powders production base,located in Xuzhou, Jiangsu, mainly supplying silver nanoparticles, copper nanoparticles, silicon carbide whisker/powders, carbon nanotubes, graphene, silicon carbide nanopowders, silver nanopowders, silver nanowires and other nano materials with small quantity for researchers and bulk order for industry groups.
Nano element also plays an important role in the drug, commonly include inorganic nano-drug delivery nano drug carriers and polymeric nano-drug delivery system. Among them, the polymeric nanoparticles as drug delivery research earlier, has a small amount of polymer-based drug of nano carrier got some European and American countries the drug agency approved for clinical treatment. This is because the polymer nanoparticles good biocompatibility, toxicity, drug coated through physical or chemical bonding in its polymer nanoparticles, excreted polymeric carrier via degradation after their release. Common of inorganic nano drug carrier including magnetic nano particles, and between hole II oxidation silicon, and nano carbon material, and quantum points, these inorganic nano drug carrier, in achieved target to sex to drug, and controlled release gentle release drug and cancer target to treatment, aspects performance out good of application prospects, and polymer nano particles compared to, inorganic nano particles not only size, and morphology can controlled sex like surface area big, and unique of light, and electric, and magnetic nature gives its has potential of imaging developer, and target to conveying and collaborative drug treatment, function, To make it more suitable for intracellular drug delivery.