Abstract

The design and evaluation of antimicrobial activities of an isonitrosomalononitrile silver(I) salt was reported. This highly stable water-soluble silver salt shows Minimum Inhibitory Concentrations (MIC) values ranging from 0.15 to 5 µg/mL towards both sensitive and resistant Gram-positive and negative bacteria. Furthermore, this silver salt has been investigated for its ability to treat a S. aureus infected Galleria mellonella larvae animal model with promising results. Thus, our results demonstrated that 80% of the treated larvae survived after 24h with respect to 10% of the untreated ones, respectively.

Highlights

  • Extensive misuse of antibiotics world wide lead to the emergence of antimicrobial resistance as a major threat to healthcare [1]

  • This paper describes the synthesis and biological antimicrobial evaluation of a new isonitrosomalononitrile silver salt against both Gram-positive and negative bacteria and demonstrates its in vivo efficiency against a S. aureus infected G. mellonella larvae animal model

  • We prepared the corresponding isonitrosomalononitrile potassium salt 3 parent derivatives to compare the influence of the nature of the metal used on the potent antimicrobial activities encountered

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Summary

Introduction

Extensive misuse of antibiotics world wide lead to the emergence of antimicrobial resistance as a major threat to healthcare [1]. This paper describes the synthesis and biological antimicrobial evaluation of a new isonitrosomalononitrile silver salt against both Gram-positive and negative bacteria and demonstrates its in vivo efficiency against a S. aureus infected G. mellonella larvae animal model. The X-ray diffraction analysis of the synthesized powder of 3 confirmed the correlation with the determined crystal structure of isonitrosomalononitrile potassium salt 3 and the purity of the sample.

Results
Conclusion

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