Artificial Heart 2: Proceedings of the 2nd International by Tetsuzo Akutsu, Hitoshi Koyanagi, Setsuo Takatani, Kazunori PDF

By Tetsuzo Akutsu, Hitoshi Koyanagi, Setsuo Takatani, Kazunori Kataoka, Jack G. Copeland, Stuart L. Cooper, Peer M. Portner, David B. Geselowitz

ISBN-10: 4431659641

ISBN-13: 9784431659648

ISBN-10: 4431705449

ISBN-13: 9784431705444

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Read or Download Artificial Heart 2: Proceedings of the 2nd International Symposium on Artificial Heart and Assist Device, August 13–14, 1987, Tokyo, Japan PDF

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Extra info for Artificial Heart 2: Proceedings of the 2nd International Symposium on Artificial Heart and Assist Device, August 13–14, 1987, Tokyo, Japan

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From the 5 1Cr radioactivity, the number of adhering platelets was determined. From the 3H radioactivity, the amount of released serotonin from adhering platelets was determined. In vitro blood clotting test Canine blood was placed on the sample and aqueous CaCl 2 was added [9]. After 15-min contact incubation at 37°C, the thrombus that formed on the sample was weighed. The amount of thrombus that formed on the glass was taken as the standard. Design and synthesis of blood-compatible polyurethane derivatives Fig.

These results may indicate that absorption of lipids under cyclic straining did not induce the reduction in fatigue strength. Lipids which absorbed and diffused into hard-segment domains during the long-term exposure to the lipid solution were the cause of the reduced fatigue strength. Influence of Hydrolytic Enzymes on Fatigue Strength ofSPUU Enzymes are able to catalyze the degradation of synthetic polymers. Cell-polymer interactions may lead to cellular activation and enhanced enzyme exocytosis by the inflammatory cells (12].

The free isocyanate remaining on the spacer group is then coupled through a condensation reaction to functional groups (-OH, -NH2 ) on heparin. The first step in the procedure is to derivatize the PEO polymers with isocyanate functional groups. This is accomplished by reacting toluene 2 4-diisocyanate (TDI) and PEO in a 2:1 molar ratio. TDI is first dissolved in benzene and PEO slowly added dropwise. This is done to assure a continual excess of TDI and to prevent inter- or intramolecular oligomerization between PEO polymer units.

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Artificial Heart 2: Proceedings of the 2nd International Symposium on Artificial Heart and Assist Device, August 13–14, 1987, Tokyo, Japan by Tetsuzo Akutsu, Hitoshi Koyanagi, Setsuo Takatani, Kazunori Kataoka, Jack G. Copeland, Stuart L. Cooper, Peer M. Portner, David B. Geselowitz


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