Synthesis, photosensitization and antimicrobial activity evaluation of some novel Merocyanine dyes

Novel acyclic and cyclic merocyanine dyes derived from the nucleu of furo [(3,2-
d) pyrazole; imidazole]were prepared. The electronic visible absorption
spectra of all the synthesized new cyanine dyes were examined in 95% ethanol
solution to evaluate their photosensitization properties. Antibacterial and
antifungal activities for some selected dyes were tested against various bacterial
and fungal strains (Escherichia coli, Staphylococcus aureus, Aspergillus flavus and
Candida albicans) to evaluate their antimicrobial activity. Structural identification
was carried out via elemental analysis, visible spectra, IR and 1H NMR
spectroscopic data.