Sol-gel coatings for optical chemical sensors and biosensors

Development of a sol–gel optical sensor for analysis of zinc in pharmaceuticals

“…When choosing the polymeric support for chemical sensors development, the sol-gel technology is a very promising and extensively investigated strategy [19][20][21][22][23], since it provides a low-temperature process to obtain porous silicate glass matrices in which organic reagents and molecular receptors may be easily entrapped. The structures obtained possess excellent properties, such as chemical and thermal stability, chemical inertness, high purity and homogeneity and very high transparency in a broad wavelength range from ultraviolet to infrared.…”

Volatile alcoholic compounds fibre optic nanosensor

“…In last few years, it has been presented as a very useful technique to build up two-beams Fabry-Perot (also called Fizeau) nanocavities on optical fibre with lengths less than a micrometer [15]. Simplicity or reproducibility are the main advantages this method offers respect to other deposition techniques employed to develop optical fibre sensors such as for example sol-gel [16,17], dip coating [18] or Langmuir-Blodgett [19].…”

Biosensors Based on Sol–Gel-Derived Materials

“…A number of review articles have been published in the general field of sol-gel-based biosensing. 8,14,42,[46][47][48] Such biosensors rely on the intimate interfacing of a biorecognition element to a physical transducer that converts the biological reaction into a measurable signal. Typical transduction schemes in biosensors include electrochemical, optical, piezoelectrical, thermometric, and magnetic methods.…”