Roles of Oligo(ethylene glycol) to Improve Sensing Systems

Sensing systems are important and widely used tools for analytical determinations. The search for the synthesis of novel, low-cost, effective, and environmentally friendly sensing systems is a tendency; however, these systems still face several limitations. Oligo(ethylene glycol) (OEG) has been incorporated into sensing systems to circumvent some drawbacks. This review aims to show the roles that OEGs can perform and make them easy to access. Several articles dealing with OEG-containing sensing systems and addressing analytical applications were compiled. Each article is given on comparative tables focusing on the OEG, detection, and analytical parameters, and some notorious examples are also discussed in the text. More than ten roles of OEGs were found and commented on. These roles and their ability to advance sensing systems show that OEGs are versatile and efficient compounds. OEGs are expected to be a tool for the rational design and performance improvement of sensing systems.