Pentadecanal inspired molecules as new anti-biofilm agents against Staphylococcus epidermidis

Biofouling. 2018 Nov;34(10):1110-1120. doi: 10.1080/08927014.2018.1544246. Epub 2019 Jan 30.


Staphylococcus epidermidis, a harmless human skin colonizer, is a significant nosocomial pathogen in predisposed hosts because of its capability to form a biofilm on indwelling medical devices. In a recent paper, the purification and identification of the pentadecanal produced by the Antarctic bacterium Pseudoalteromonas haloplanktis TAC125, able to impair S. epidermidis biofilm formation, were reported. Here the authors report on the chemical synthesis of pentadecanal derivatives, their anti-biofilm activity on S. epidermidis, and their action in combination with antibiotics. The results clearly indicate that the pentadecanal derivatives were able to prevent, to a different extent, biofilm formation and that pentadecanoic acid positively modulated the antimicrobial activity of the vancomycin. The cytotoxicity of these new anti-biofilm molecules was tested on two different immortalized eukaryotic cell lines in view of their potential applications.

Keywords: TAC125; 1,1-dimethoxypentadecane; Anti-biofilm; pentadecanal; pentadecanoic acid; pentadecanoic acid methyl ester; vancomycin.

MeSH terms

  • Aldehydes / chemical synthesis
  • Aldehydes / chemistry
  • Aldehydes / pharmacology*
  • Anti-Bacterial Agents / pharmacology*
  • Biofilms / drug effects*
  • Disinfectants / chemical synthesis
  • Disinfectants / chemistry
  • Disinfectants / pharmacology*
  • Drug Synergism
  • Humans
  • Microbial Sensitivity Tests
  • Staphylococcus epidermidis / drug effects*
  • Staphylococcus epidermidis / growth & development
  • Vancomycin / pharmacology*


  • Aldehydes
  • Anti-Bacterial Agents
  • Disinfectants
  • pentadecanal
  • Vancomycin