There is a wide variety of polymers which are used in bioengineering field. In general
they are known as polymeric biomaterials. One important application of biomaterials is in medicine. Another usage of biomaterials is in biotechnology .Polymeric biomaterials may be generally categorized according to the polymer properties
They may also be classified based on the different applications
such as in vivo polymers
ex vivo polymers and in vitro polymers. This paper mainly reviews recent developments of antithrombogenic materials
polymers in drug system and polymers in biotechnology. The new research trends in the above fields have been summarized.