Fluoride selective colorimetric sensor based on cefetamet pivoxil drug

A simple fluoride ion selective chemosensor was developed using cefetamet pivoxil (L) drug. In the presence of F− ions, the drug L selectively portrayed a naked-eye detectable color change from colorless to red with the appearance of a new charge transfer band at 500 nm. No significant color change was observed with other tested anions such as Cl−, Br−, I−, AcO−, HSO4− and H2PO4−. Further, the antimicrobial activity of L was screened in the absence and presence of F− by agar well diffusion method.