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Related Concept Videos

Biofilms01:29

Biofilms

61
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
61

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Titanium complexes affect Bacillus subtilis biofilm formation.

Shahar Hayet1,2, Mnar Ghrayeb1,2, David N Azulay1,2

  • 1Institute of Chemistry, The Hebrew University of Jerusalem Edmond J. Safra Campus Jerusalem 91904 Israel Edit.tshuva@mail.huji.ac.il Liraz.chai@mail.huji.ac.il +972 2 5660425 +972 2 6586084 +972 2 6585303.

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Two titanium(IV) complexes impacted bacterial biofilms. One complex inhibited biofilm formation, while the other enhanced the formation of more robust biofilms by affecting cell adhesion.

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Area of Science:

  • Microbiology
  • Materials Science
  • Biochemistry

Background:

  • Bacterial biofilms exhibit high antibiotic resistance due to their extracellular matrix (ECM) and persister cells.
  • Titanium(IV) complexes are known for anticancer properties and may influence bacterial behavior.
  • Understanding biofilm dynamics is crucial due to emerging links between bacteria and cancer.

Purpose of the Study:

  • To investigate the effects of two titanium(IV) complexes, phenolaTi and salanTi, on *Bacillus subtilis* biofilm formation.
  • To determine if these complexes alter bacterial growth rates or biofilm structure.
  • To explore the potential of titanium(IV) complexes in modulating bacterial biofilms.

Main Methods:

  • Culturing *Bacillus subtilis* in the presence of phenolaTi and salanTi.
  • Assessing bacterial growth rates in shaken cultures.
  • Analyzing biofilm formation and mechanical robustness.
  • Utilizing optical microscopy to observe cell-cell and cell-matrix adhesion.

Main Results:

  • Neither phenolaTi nor salanTi affected the growth rate of *Bacillus subtilis* in shaken cultures.
  • phenolaTi significantly inhibited biofilm formation.
  • salanTi unexpectedly induced the formation of more mechanically robust biofilms.
  • Microscopy suggested that phenolaTi interferes with adhesion, while salanTi enhances it.

Conclusions:

  • Titanium(IV) complexes can modulate bacterial biofilm formation.
  • phenolaTi and salanTi exhibit opposing effects on biofilm structure and robustness.
  • These findings suggest potential applications of titanium(IV) complexes in controlling biofilms, with implications for understanding bacteria-cancer interactions.