Development of ruthenium(ii) complexes as topical antibiotics against methicillin resistant Staphylococcus aureus

  • P. L. Lam
  • , G. L. Lu
  • , K. M. Hon
  • , K. W. Lee
  • , Cheuk Lam HO
  • , X. Wang
  • , J. C.O. Tang
  • , K. H. Lam
  • , R. S.M. Wong
  • , S. H.L. Kok
  • , Zhaoxiang BIAN
  • , H. Li*
  • , K. K.H. Lee
  • , R. Gambari
  • , Chung Hin CHUI
  • , Wai Yeung WONG
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

71 Citations (Scopus)

Abstract

A series of ruthenium(ii) bis(2,2′-bipyridyl) complexes containing N-phenyl-substituted diazafluorenes (Ru-C1, Ru-C6, Ru-C7 and Ru-F) was synthesized and their potential antibacterial activity against methicillin resistant Staphylococcus aureus (MRSA) was investigated. The Ru-C7 complex showed significant improvement in both minimum inhibitory concentration (MIC, 6.25 μg mL-1) and minimum bactericidal concentration (MBC, 25 μg mL-1) towards MRSA when compared with those of methicillin (positive control) (MIC = 25 μg mL-1 and MBC = 100 μg mL-1). The Ru-C7 complex possessed much stronger antibacterial effects than the Ru-C6 complex (MIC, 25 μg mL-1, MBC, >100 μg mL-1). Both Ru-C6 and Ru-C7 complexes were also demonstrated to be biologically safe when tested on normal human skin keratinocytes.

Original languageEnglish
Pages (from-to)3949-3957
Number of pages9
JournalDalton Transactions
Volume43
Issue number10
DOIs
Publication statusPublished - 14 Mar 2014

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