“…(1) Fabrication of various sensing materials in the different forms (gels, hydrogels, films, and membranes) due to the unique solvent ability of ILs with respect to different matrix materials (TEOS, 70,84 cellulose, [85][86][87][88][89] EC, PMMA, and PVC [74][75][76][77][78][79][80] ), recognition elements (ligands, [77][78][79]85,86,103 indicators, 81,93,94 chromo-responsible dyes, 89 complexes, [74][75][76]80,84,87,90,91 and enzymes 70,88 ), and gaseous analytes (in particular, CO2 82 ).…”