Iranian scientists at Shahid Beheshti University of Medical Sciences have successfully produced the country's first bio-artificial liver.
"The bio liver grown from animal cells in the laboratory not only has a higher detoxificative function but is also less pricey", said Iran's Health Minister, Kamran Bagheri Lankarani.
He added that the liver can also live outside the body for about a month, which is considered a great success in this field.
Statistics show that more than 2-3 thousand individuals suffer from acute liver failure in Iran whose condition eventually develops into the chronic form of the disease.
Lankarani said bio livers help patients in need of liver transplant to better endure the long period before receiving a new liver by regenerating the remaining liver during this time.
Iranian researchers have successfully lessened the toxicity of nanoclays, producing material that can be used for medical applications.
Nanoclays are used in various industries, including the polymer and medical industries. They are also applied in producing gas absorbents and drug delivery carriers.
Industrial clays are generally modified using Alkyl ammonium and alkyl amines, which are considered toxic compounds. Hence, their use particularly in medicine is limited.
According to Iranian Nanotechnology Initiatives, however, a researcher from Amir Kabir University of Technology has been able to modify nanoclays in a way that makes the material appropriate for medical uses.
"The non-toxicity of the modified clay, in which a layer of clay is present between each two kitosan molecules, has been tested in laboratory cultures," says Kourosh Kabiri, the lead inventor of the product.
The modified nanoclays allows the production of polymers with improved mechanical, permeability and thermal effects as the intercalation period has been reduced to around 33 minutes and intralayer thickness has been increased to 12-24 angstroms, according to a study published in Iranian Polymer.
... Payvand News - 08/27/08 ... --