Chloride and Acetonitrile Ruthenium(IV) Complexes: Crystal Architecture, Chemical Characterization, Antibiofilm...

Area of Science:

• Coordination Chemistry
• Materials Science
• Antimicrobial Research

Background:

• Antimicrobial drug resistance necessitates the development of novel therapeutic agents.
• Ruthenium complexes are being explored for their potential biological activities.

Purpose of the Study:

• To synthesize and characterize two novel ruthenium(IV) complexes.
• To evaluate their antibiofilm activity against Pseudomonas aeruginosa.
• To assess their bioavailability and interactions with biological molecules.

Main Methods:

• Synthesis and characterization of ruthenium(IV) complexes using spectroscopy (IR, UV-Vis) and X-ray crystallography.
• Electrochemical studies (CV, DPV) and Hirshfeld surface analysis.
• In vitro evaluation of antibiofilm activity, pyoverdine production inhibition, and human serum albumin (HSA) binding.

Main Results:

• Two ruthenium(IV) complexes, (Hdma)2(HL)2[RuIVCl6]·2Cl·2H2O (1) and [RuIVCl4(AN)2]·H2O (2), were synthesized and characterized.
• Complex 1 demonstrated significant reduction in Pseudomonas aeruginosa biofilm formation and pyoverdine production.
• Bioavailability studies indicated potential interactions with HSA, suggesting therapeutic relevance.

Conclusions:

• Ruthenium(IV) complexes, particularly complex 1, exhibit promising antibiofilm properties against Pseudomonas aeruginosa.
• These findings highlight the potential of these complexes as novel antimicrobial agents.
• Further research into their therapeutic applications is warranted.