Silicon corrole functionalized color catcher strips for fluoride ion detection

Colour Catcher®: A Low-Cost Support for Developing Colorimetric Sensors for PFOA Detection

“…The innovative specific deposition protocol involves a SiTTC(OH) immersion solution prepared using a H2O/EtOH mixture as solvent [3]; this method allows the mechanical immobilization of the neutral silicon receptors between the fibres on the CC strips, although the molecular structure does not present negative charges like typical commercial dyes. The indicator strips were utilized in optical measurements using a novel PT-like instrument setup (Figure 1a), which was able to record colorimetric variations upon the specific interaction between SiTTC(OH) and PFOA.…”

“…In this work, we developed innovative deposition protocols to anchor a silicon corrole [SiTTC(OH)] onto a CC, a sensing material belonging to the wide class of porphyinoids. The use of a novel PT-like instrumental setup (Figure 1a), employing a peristaltic pump, allowed the development of a low-cost sensor device able to perform in situ analysis of water samples with good reproducibility, high sensitivity, and a very low LOD [2,3].…”