The Antithrombogenecity of Silk Fibroin Films Blending with Citric Acid and PVA

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Abstract:

The citric acid (CA) was added to the silk fibroin and Polyvinyl Alcohol (PVA) copolymer system. The blending 4% PVA was for improving the mechanical properties of the silk fibroin films. Citric acid amount varies from 0.5% to 2% of weight. The antithrombogenecity was characterized by in vitro clot time of prothrombin time (PT), the Activated partial thromboplastin time (APTT) and thrombin time (TT). The mechanical properties of the blending films were measured and the tensile strength and breaking elongation of films reached to 25.3MPa and 102%. The anticoagulant property results indicated that APTT and TT prolonged significantly, but PT has no effective change. We discussed the relationship between the structure and properties and proposed an anticoagulant mechanism.

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Key Engineering Materials (Volumes 288-289)

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417-420

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June 2005

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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[1] In Chul Uma, HaeYong Kweon , Young Hwan Park , Sam Hudson Off W. J. International Journal of Biological Macromolecules Vol. 29(2001), p.91.

Google Scholar

[2] T. Furuzono, K. Ishihara, N. Nakabayashi, Y. Tamada, Biomaterials Vol. 21(2000)p.327.

Google Scholar

[3] Gregory H. Altman, Frank Diaz, Caroline Jakuba, Calabro, Rebecca L. Horan. Vol. 24(2003), pp.401-406.

Google Scholar

[4] Xin Chen, Wenjun Li, Tongyin Yu. Journal of Polymer Science. Vol. 5 (1997), p.2293.

Google Scholar

[5] Qiang Lv, Chuanbao Cao, Hesun Zhu. Chinese Science Bulletin Vol. 49 (2004), p.538.

Google Scholar

[6] Hae Yong Kweon, In Chul UM, Yong Hwan Park: Polymer Vol. 42(2001), p.6651.

Google Scholar

[7] Tsukada M.: J Polym Sci Polym Phys Ed Vol. 24(1986), p.457.

Google Scholar

[8] Kweon HY, Park YH: J Appl Polym Sci Vol. 73(1999), p.2887.

Google Scholar

[9] Q. Lv, C.B. Cao, H.S. Zhu, High Technology Letters, Vol. 10 (2003), p.58.

Google Scholar

[10] C.B. Cao, Q. Lv, H.S. Zhu, Materials Science and Technology, Vol. 11 (2003), p.308.

Google Scholar