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Updated: Jan 25, 2026

Characterization of Biological Absorption Spectra Spanning the Visible to the Short-Wave Infrared
Published on: January 10, 2025
Infrared Absorption Spectroscopy: A Multifaceted Characterization Tool for Nanomaterials
Gouranga H Debnath1, Prasun Mukherjee2
1Centre for Nano and Material Sciences, Jain University, Bangalore, Karnataka 562112, India.
Abstract:
Infrared (IR) absorption spectroscopy as a characterization technique for nanoparticles (NPs) has largely focused on identifying the vibrational modes of the NP's ligand shell. This perspective shows how IR spectroscopy offers information not just on ligand shell identity but can also be used to extract data on ligand coordination geometry and binding mechanisms, and when applied either as a stand-alone technique or in combination with photoluminescence spectroscopy, track ion exchange and chemical reactions in NPs and even help gauge the spatial location of luminescent dopants in doped semiconductor NPs. This perspective explores the versatility of IR spectroscopic characterization of nanomaterials and offers insights to propel new research exploration on this exciting topic.
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