A novel examination of limonene detection using plastic fiber optic sensors and the tapered approach

A novel tapered plastic optic fiber (POF) biosensor is proposed and demonstrated for monitoring limonene in different concentrations. The mechanism of this device based on an increase the light transmission a sensor submerged higher-concentration solution, which also reflects refractive index sensor. POF was fabricated using chemical etching method to accomplish waist diameters 0.6 mm, 0.55 0.5 with length 10 cm 2 sensing region. An Arduino integrated development environment (IDE) program used drive voltage values from photodetectors obtain measurements. As concentration solution varied 20% 100%, output increased linearly, showing sensitivity 0.295 V/%, 0.33 0.46 V/% respectively. low-cost measurement option high sensitivity, while it involves simple easy fabrication technique.