Biofilm development in time on a silicone voice prosthesis - a case study

T.R. Neu*, C.E. de Boer, G.J. Verkerke, H.K. Schutte, G. Rakhorst, H.C. van der Mei, H.J. Busscher

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)
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Voice prostheses from silicone elastomers become rapidly colonised by a mixed biofilm of bacteria and yeasts. In this study, microorganisms were isolated from biofilms on explanted prostheses after having been in place for various time intervals ranging from 1 to 67 d. The isolates were examined for their identity, adhesion to hexadecane and electro-phoretic mobility. Bacteria from early (shorter than 8 d) and late (longer than 8 d) explants could not be classified according to their taxonomy, hydrophobicity or electrophoretic mobility. However, the yeasts clearly revealed a dominance of only hydrophilic Candida albicans isolates from early explants and only hydrophobic C. tropicalis isolates from late explants. These findings may be of significance for the development of strategies to control mixed biofilms on biomaterials.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalMicrobial Ecology in Health and Disease
Issue number1
Publication statusPublished - 1 Jan 1994
Externally publishedYes


  • Adhesion
  • Bacteria
  • Biofilms
  • Biomaterials
  • Candida
  • Colonisation
  • Silicone elastomers
  • Time study
  • Voice prostheses
  • Yeasts


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