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Candida albicans biofilm formation on peptide functionalized polydimethylsiloxane
De Prijck, K.; De Smet, N.; Rymarczyk-Machal, M.; Van Driessche, G.; Devreese, B.; Coenye, T.; Schacht, E.; Nelis, H.J. (2010). Candida albicans biofilm formation on peptide functionalized polydimethylsiloxane. Biofouling (Print) 26(3): 269-275. https://dx.doi.org/10.1080/08927010903501908
In: Biofouling. Taylor & Francis: Chur; New York. ISSN 0892-7014; e-ISSN 1029-2454
Peer reviewed article  

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Trefwoord
    Candida albicans
Author keywords
    biofilm; Candida albicans; peptide; grafting; Modified Robbins Device

Auteurs  Top 
  • De Prijck, K.
  • De Smet, N.
  • Rymarczyk-Machal, M.
  • Van Driessche, G.
  • Devreese, B.
  • Coenye, T.
  • Schacht, E.
  • Nelis, H.J.

Abstract
    In order to prevent biofilm formation by Candida albicans, several cationic peptides were covalently bound to polydimethylsiloxane (PDMS). The salivary peptide histatin 5 and two synthetic variants (Dhvar 4 and Dhvar 5) were used to prepare peptide functionalized PDMS using 4-azido-2,3,5,6-tetrafluoro-benzoic acid (AFB) as an interlinkage molecule. In addition, polylysine-, polyarginine-, and polyhistidine-PDMS surfaces were prepared. Dhvar 4 functionalized PDMS yielded the highest reduction of the number of C. albicans biofilm cells in the Modified Robbins Device. Amino acid analysis demonstrated that the amount of peptide immobilized on the modified disks was in the nanomole range. Poly-d-lysine PDMS, in particular the homopeptides with low molecular weight (2500 and 9600) showed the highest activity against C. albicans biofilms, with reductions of 93% and 91%, respectively. The results indicate that the reductions are peptide dependent.

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