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.

Ferroferric Oxide Nano Powders have strong magnetic, shows good performance in terms of sewage treatment.

Barium titanate is a perovskite-type ferroelectric, with excellent ferroelectric, dielectric, pyroelectric and optoelectronic properties.

Hongwu Nano has a stable production and supply of monoclinic phase nano vanadium dioxide(VO2) powder with good quality and competitive price for small scale and mass production. Also tungsten doped vanadium(IV) oxide (W-VO2) powders are also available with adjustable phase-transition temperature.

Nano colloidal silver <20nm 100ppm-10000ppm  Concentration: 100ppm to 10000ppm and can be customized Particle size: <20nm, also can be customized Silver purity: 99.99% Solvent: deionized water or other organic solvent Package: 100ml / bottle, 500ml / bottle, 1L / drums etc, we can also pack it as needed. Features: safe, environmentally friendly, non – toxic, tasteless, convenient to use. Customize service for special particle size, dispersion, coating, etc are available, welcome to inquiry. Silver nanoparticles are well known for their antimicrobial properties. It can be used as an antibacterial and disinfectant. Addition of very small amounts of silver nanopowder (~0,1%) into different inorganic matrises makes those materials effective for killing pathogenic microorganisms like Escherichia Coli, Staphylococcus Aurous, etc. In addition to the silver colloids, there are nano silver powders to supply. Our packing is as follows:

Since 2002 China factory offer spherical morphology Si nanopowders in good and stable quality, both sample orders and batch orders are available. Any need welcome to inquiry. 

Diamond nanoparticles is superhard, superfine, high spec surface area, could be used to make nano diamond polishing liquid. 

Nano yttrium oxide powders in particle size 50-60nm,99.5% purity,widely used in optical materials.

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.

Zirconia-Yttria Nanopowders as the grinding materials with three size.

Aluminum Nitride Powders with 99.5% purity is good thermal conductive material with 100-200nm.