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Updated: May 30, 2026

Biomolecular Imaging of Cellular Uptake of Nanoparticles using Multimodal Nonlinear Optical Microscopy
Published on: May 16, 2022
Surface enhanced optical spectroscopies for bioanalysis
Iain A Larmour1, Duncan Graham
1Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, UK.
Abstract:
Surface enhancement can provide improved detection sensitivity in a range of optical spectroscopies. When applied to bioanalysis these enhanced techniques allow for the detection of disease biomarkers at lower levels, which has a clear patient benefit. However, to achieve widespread clinical use of surface enhanced techniques there remain several "grand challenges". In this review we consider the substrates employed to achieve enhancement before reviewing each enhanced optical technique in detail; surface plasmon resonance, localised surface plasmon resonance, surface enhanced fluorescence, surface enhanced infrared absorption spectroscopy and surface enhanced (resonance) Raman spectroscopy. Finally we set out the "grand challenges" currently facing the field.
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