U-shaped fiber optic lossy mode resonance sensor for the detection of antibiotics

Antibiotics represent one of the most harmful contaminants of living environment and drinking water. Therefore, we designed a U-shaped fiber optic lossy mode resonance sensor for the detection of antibiotic ciprofloxacin. It is observed that the proposed sensor can provide a sensitivity of 11270 nm/RIU and limit of detection as 9.76×10
⁻⁵
RIU, for the detection of ciprofloxacin hydrochloride in the concentration range of 0.001 to 0.029 mol·dm
⁻³
. Authors believe that the proposed lossy mode resonance sensor can practically explore its potential use in environmental monitoring applications.