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Formation of new bone is suggested to be caused by interaction of a set of chemical factors with mesenchymal target cells. A specific assembly of factors, i. e. chemotaxis-, adhesion-, proliferation- and differentiation-factors, as well as macromolecular structure components, essential for...
A comparison was made, for in vitro assessment of toxicity, between six different procedures to extract biomaterials. A new method was developed, with a special insert inside the tissue culture well, that allows relevant contact between cells and material without disturbing physical contact. To...
Aminoacylase from Aspergillus oryzae was adsorbed on functionallized macroporous copolymers where the enzyme showed excellent catalyzing activity and operation stability. Various factors which effect the activity of the immobilized aminoacylase such as temperature, pH and ionic strength were...
This study developed a new technique to quantitate platelets adhered on biomaterials surfaces in vitro, based on a surface phase radioimmunoassay using a monoclonal antidoby SZ-21, directed specifically against the membrane glycoprotein complex IIIa of human platelets. In vitro perfusion is...
Anhydrous ammonia gaseous plasma technique was used for the surface modification of polystyrene petri dishes and poly(tetrafluoroethylene) (PTFE) membranes. Amino groups were added onto surfaces by exposing them to ammonia plasma. Plasma modified polymeric surfaces and control polymeric surfaces...
Protein adsorption and platelet adhesion are two important biological processes arising at the blood prosthetic interface. The effect of certain commonly used vaccines and hyper immune serums namely tetanus toxoid, tetanus immunoglobulin, polyvalent anti-snake venum serum and anticholera vaccine...
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