Hydrogel coatings for artifi cial heart implants

Hydrogel coatings for artifi cial heart implants
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Maciej Trzaskowski, Beata Butruk, Tomasz Ciach
13 August 2013
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Abstract: Polyurethanes (PU) are nowadays one of the most widely used types of polymers for biomedical applications. Th e segmented nature of these materials enables to obtain both fl exibility and mechanical strength within the same material. However, there is a need to modify a surface of PU in order to produce highly hemocompatible materials that can be used in fabrication of permanent blood-contacting devices such as vascular implants, valves or hearts. Among many types of modifi cations, hydrogel coating appears to be very promising. Such modifi cation increases the hydrophilicity of PU which in turn causes an increase in the bio- and hemocompatibility of the material. The aim of presented study was to create a polyvinylpyrrolidone (PVP) hydrogel coating onto a surface of polyurethane. A possibility of using a free radical polymerization reaction was investigated. Th e obtained materials were analyzed in terms of durability, swelling ratio and contact angle. Th e FTIR-ATR analysis confi rmed that polyurethane surfaces have been uccessfully coated with PVP.

Keywords: polyurethane, polyvinylpyrrolidone, hydrogel coating, artifi cial heart



  author = {Maciej Trzaskowski and Beata Butruk and Tomasz Ciach},
  title = {Hydrogel coatings for artifi cial heart implants},
  journal = {Challenges of Modern Technology},
  year = {2011},
  volume = {2},
  number = {1},
  pages = {19-22},
  url = {http://www.journal.young-scientists.eu/index.php/isuues/file/6-hydrogel-coatings-for-artifi-cial-heart-implants}

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