Basic and Advanced Logical Concept Derived from Surface Enhanced Infrared Spectroscopy (SEIRS) as Sensing Probe for Analysis of Chemical Species: A Brief Review

The worldwide concern for environmental pollution, climate change and health hazards caused by various pollutants has significantly increased in the recent past. Various techniques have so far been employed for sensing applications of such organic as well as inorganic pollutants. Amongst the different techniques, surface enhanced infrared spectroscopy (SEIRS) is a powerful tool which is utilized for label-free and unambiguous identification of molecular species. SEIRS overcomes the limitations of the conventional infrared spectroscopy and has emerged as a potential technique with high surface sensitivity by enhancing the signals by many folds and also facilitates new studies from the fundamental aspect to applied sciences. The current review is dedicated to a comprehension of the SEIRS technique to provide a critical overview of its application as sensing probe for analysis of chemical species. The major features of Fourier Transform Infrared spectroscopy and SEIRS have been critically discussed.