antibacterial Ag nanopowder

You can buy various high quality nano silver powders products from HW NANO silver powders suppliers.

Micron size, flake morphology, Bright Silver Powder, 99.99% high purity, with different particle size for customers' choice.  It is widely applied for conductive paste.

Alpha red fe2o3 Nanopowder with 100-200nn for pigment use.

4-6um Zirconium  nanopowders  with the purity of 99.5% apply to the nuclear industry.

We could supply nano zno in rods or spherical shape, 30-50nm, 99.8% purity.

Magnesium Oxide nano particles antibacterial 30-50nm         Magnesium Oxide nano particle(MGO) with a wide band-gap is an important inorganic material. MgO nano powder is a promising antibacterial agent because of its high resistance to harsh environment.  For the antibacterial ablity of MgO nano powder is related to the particle size. The antibacterial activity was increased with the decrease of the particle size of MgO nano. For particles in the size range 50-70 nm, the bactericidal efficacy of nano-MgO increased slowly with decreasing particle size. When the size under 40 nm, the bactericidal efficacy of MgO nano increases a lot and could kill more bacteria. This proves that the particle size is smaller the antibacterial efficacy of MgO is stronger. MgO nano particles penetrated the bacterial cell wall and cell membrane. For the size is smaller, and then killed more bacteria. Also MgO nano particles with large specific surface area increase as the size of the nano particles decreases. For the large surface area with lots of reactive groups on the particle surface and high antibacterial activity will be obvious.       Hongwu International Group Ltd is committed to provide high-quality Magnesium Oxide nano particles(30-50nm, 99.9%) with the most reasonable price for customers who are doing nanotech research and have formed a complete cycle of researching, manufacturing, marketing and after-sale servicing. Our products have been sold to many countries around the world.

Fullerol Fullerenols is a derivative of fullerene C60, which is obtained by chemically introducing hydroxyl groups into the carbon of fullerene.

Hongwu supply high purity boron nanoparticles at favorable factory price and stable quality. 

Beta SiC Silicon carbide whiskers is good Ceramic cutting tool toughening material.

Au gold nanoparticles have many advantages as a probe in life field for nano gold(Au) has high sensitivity and good specificity. Hongwu Nano supplies not only produce nano gold powders with a variety of particle size from nano to micon, but also collodial gold/ nano Au dispersion.

The general purity of Hongwu's MWCNT is 99%. If not high requirements, lower purity about 90%+ one is also available. For some application, low purity MWCNT would be more cost-effective.

HONGWU China factory retail / wholesale Ultrafine Fe3O4 powders Iron Oxide Black IONPs. COA, MSDS available, any need welcome to inquiry!