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  • 标题:A New Silver Complex with Ofloxacin – Preliminary Study
  • 作者:Aura Rusu ; Gabriel-Cosmin Popescu ; Silvia Imre
  • 期刊名称:Acta Medica Marisiensis
  • 电子版ISSN:2247-6113
  • 出版年度:2016
  • 卷号:62
  • 期号:2
  • 页码:192-198
  • DOI:10.1515/amma-2015-0091
  • 语种:English
  • 出版社:Walter de Gruyter GmbH
  • 摘要:Objective : Silver complexes of antibacterial quinolones have the potential advantage of combining the antibacterial activity of silver and fluoroquinolones. The objective of our study was the preparation and the preliminary physico-chemical characterization of a silver complex with ofloxacin. Methods : To achieve our goals several spectroscopic methods (ultraviolet spectrophotometry, mass spectrometry, and Fourier transform infrared spectroscopy) and thermal methods (differential scanning calorimetry and thermogravimetric analysis) were used in order to elucidate the chemical structure of the complex. Results : Using mass spectrometry we established the stoichiometric ratio silver:ofloxacin as 1:2. Experimental data suggest a particular coordination for ofloxacin, as a monodentate ligand, in the formation of a complex with silver, through the nitrogen atom from the methyl-piperazine cycle. Conclusions : The obtained complex has a chemical structure likely [Ag(Ofloxacin)2]NO3, requiring evaluation through other physico-chemical methods.
  • 关键词:fluoroquinolones ; ofloxacin ; silver ; metalcomplex ; silver nitrate
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