Silastic with polyacrylic acid filler: swelling properties, biocompatibility and potential use in cochlear implants.

@article{Seldon1994SilasticWP,
  title={Silastic with polyacrylic acid filler: swelling properties, biocompatibility and potential use in cochlear implants.},
  author={H. L. Seldon and Madeleine Dahm and Graeme M. Clark and Suzanne Crowe},
  journal={Biomaterials},
  year={1994},
  volume={15 14},
  pages={1161-9}
}
We present a new hygroscopic implant material which consists of high-molecular-weight polyacrylic acid (PAA) as a filler in a Silastic matrix. The mixture swells upon immersion in bodily fluids; the degree of swelling depends on the ratio of PAA to Silastic and allows the design of implants that will achieve their final shape and size only after the implantation procedure. In vivo and in vitro biocompatibility tests reveal no adverse cellular or tissue responses. In cochlear implant development… CONTINUE READING