Abstract
Fourier transform infrared (FTIR) spectroscopy is an old but an emerging instrumentation technique in which molecular interaction via exposure to infrared electromagnetic radiation with the samples can be utilized to predict the structure of small molecules and natural products, functional groups present in molecules and, analysis of surfaces of nanoparticles, functionalization of nanoparticles, cell–cell interactions, ligand-binding interaction, biological functions, and also recognition of various diseases and imaging. Due to its wide applications, FTIR spectroscopy has received great importance in many research areas. This chapter provides an overview of applications of IR spectroscopy and will be helpful for the researchers to analyze and predict the various physicochemical interactions that ultimately can be utilized in research areas of drug discovery, biological functions, biological activity, functionalization of metal and graphene-based nanoparticles and nucleic acids.
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