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Chemical Sensors Based on Molecularly Imprinted Sol-Gel Materials

“…It has been noticed that these different variables have a large influence on the fundamental characteristics of sol-gel materials such as homogeneity, porosity, refractive index, surface area and mechanical and thermal properties. The physical and chemical principles involved in sol-gel processing and its applications have been excellently addressed in reviews [1,2,3,4]. The most comprehensive work on this topic had been presented by C. Jeffrey Brinker [5] in his famous book ‘SOL-GEL SCIENCE’ .…”

“…These sensors are employed for detection of metal ions [8,9,10], monitoring of pH [11,12,13,14,15,16,17] and in several other fields. The sol-gel films can also be coupled with optical fibers to develop wave sensors [2]. …”

Structure modification by solvent addition into TEOS/PDMS hybrid materials

“…Sol-gel technology can be considered one of the most important synthesis procedures for these materials. The wide variability and change easiness of this process allows chemists and engineers the development of a large number of new materials in a large scale, as high technology gas sensors or biosensors based on organic groups covalently bonded to inorganic network [2,3], abrasion [4] and corrosion coatings [5] or dye hybrid lasers by incorporating organic molecules into the silica matrix [6].…”

Fabrication of sucrose biosensor based on single mode planar optical waveguide using co-immobilized plant invertase and GOD

“…In most applications the sol-gel material is used to provide a micro-porous support matrix in which analyte-sensitive species are entrapped and smaller analyte molecules may diffuse (Mac Craith et al, 1997). The sol-gel method is a low-temperature process used to synthesize optically transparent, amorphous bulk glasses and thin films.…”