Shanghai Taikang Nanochemistry Technology Shanghai Taikang Nanochemistry Technology Limited is one new company which is specialized in nanochemistry technology developing, research and production. Our main product is nanoparticl drug carriers- hydroxylapatite(HAP).   Our product used for Toothpaste, Food, Simple Artificial bones, Artificial bones, Medical devices and Bone coating, especially as an new bone substitutes.   HAP have good histocompatibility, non-toxic, non-immunogenic, and high surface area, strong bioadhesive,   to combine and transfer macromolecular drugs,  large amount of adsorbed drug, with the basic requirements of the drug carrier. Hydroxyapatite as drug carrier system can enhance the permeability of drugs in biological membrane, and that is good for drug transdermal absorption and exert its effects within the cell.   Nano hydroxyapatite as drug carrier is very safe, because its ingredient is same with bones and teeth of people or animal, and will not dissolving into gastrointestinal fluid, it will be degradation absorbed or delivered to body outside after drug released. Besides, nano hydroxyapatite could be added radioactive element easily in the process of production, can be used for cancer inactivated.   Our main   products: Hydroxyapatite   Series   (pharma grade  nano-hydroxyapatite , food grade   hydroxyapatite,   toothpaste grade  hydroxyapatite ) ; Nano metal   oxide :   silicon dioxide , titanium dioxide Cetylpyridinium chloride ;     Our Nano-HAP products with different applications as following:   Apperance             Partical size (nm)               Purity(%)                      Usage needle-like                     60nm                              96%                   food,toothpaste       needle-like                     40nm                              96%              general,proteinisolate   needle-like                      20nm                             97.5%                  artificial bone needle-like           20nm(W),150nm(L)               99%            artificial bone (high pure)     short clavite         30nm(W),100nm(L)               99%            artificial bone,artificial joint     fibrous                 10nm(W),500nm(L)                99%            artificial bone,artificial joint   globular                           12um                              99%              artificial bone coating needle-like                     12um                               96%                    food,toothpaste