Release date: 2014-07-25
 According to the US "Life Science" website, biomedical engineers at Brigham and Women's Hospital in Boston, USA, used 3D printing technology to develop artificial blood vessels. This bioprinted blood vessel can be used for new drug testing or vascular grafting. Blood vessels are an important part of the human circulatory system. Scientists have developed artificial heart, liver and lung tissue, but artificially creating a vascular network is considered to be very difficult.
The research team adopted a completely new approach. They print a template for the growth of vascular cells and place the cells in them for cultivation. Subsequently, the researchers used agarose to print out the vascular network, a polymer made from seaweed, commonly used for cell culture. At present, the biggest problem with this method is the inability to print capillaries, but scientists say that the bio-printing methods, printed materials and frameworks will be refined so that the technology can be improved in the future.
Source: China News Network
Carbohydrazide CAS NO. 497-18-7
Carbohydrazide can act as an oxygen scavenger to prevent corrosion, especially in boiler feedwater systems, rocket propellant assemblies, color image and soap stabilizers, antioxidant rubber, boiler water deoxidizers and metal passivators. Carbohydrazide can also be used as an anticorrosive agent. Organic synthesis of intermediates.
CAS No. 497-18-7 EINECS 207-837-2
Molecular Formula CH6N4O Molecular Weight 90.08
Attributes:
Carbohydrazide is a white crystalline powder or granule. The effective content of carbohydrazide is from 98.0 to 100.0%.
Specifications:
|
Items |
Index |
|
Appearance |
White crystal line powder or pellets |
|
Active Content (%) |
98.0-100.9% |
|
PH (12% Solution, @ 25 ℃) |
8.45±1.25 |
|
Free Hydrazine |
≤250ppm |
|
Chloride (Cl) |
≤10ppm |
|
Sulfate (SO4) |
≤20ppm |
|
Silica (SiO2) |
≤10ppm |
|
Copper (Cu) |
≤1ppm |
|
Iron (Fe) |
≤4ppm |
|
Sodium (Na) |
≤4ppm |
|
Lead (Pb) |
≤4ppm |
|
Moisture |
≤0.2% |
Packaging and storage:
Pack 25 kg or 50 kg with woven bags or fiber drums.
Store in a cool, dry, well-ventilated area away from incompatible materials. Please close the container when not in use.
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