Biofilm prevention on cochlear implants

Yael Goldfinger, Michal Natan, Chaim N. Sukenik, Ehud Banin, Jona Kronenberg

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Objectives: To examine the efficiency of a bacteria-resistant coating for the polydimethylsiloxane (PDMS) casing of cochlear implants. Methods: The coatings are based on thin titania films that are made by liquid phase deposition or atomic layer deposition. The antibacterial activity of the coating was tested by two different detection assays: BCA protein and confocal microscopy. Results: Coating the PDMS with thin films (10-40 nm) of titania significantly reduces t he accumulation ofbacteria. Discussion: Thin oxide films made under conditions that do not undermine the integrity of polymeric materials can be used as anti-microbial coatings for soft polymers such as the PDMS that is used as a casing for cochlear implants or other medical devices.

Original languageEnglish
Pages (from-to)173-178
Number of pages6
JournalCochlear Implants International
Issue number3
StatePublished - May 2014


  • Biofilm
  • Cochlear implant
  • Infection
  • PDMS
  • Titania


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