Raman spectroscopy (RS) is a powerful sensing modality based on inelastic light scattering, which provides qualitative and quantitative chemical analysis with high sensitivity and specificity . RS yields a characterisation of the vibrational profile of molecules, which can help elucidate the composition of chemical compounds, biological specimens and materials . In contrast to most conventional technologies for (bio)chemical characterisation (e.g., staining, different omics, fluorescence microscopy and mass spectrometry), RS is both label-free and non-destructive, thereby allowing the acquisition of rich biological and chemical information without compromising the structural and functional integrity of the probed samples. This advantage has enabled a broad range of applications of RS in biomedical and pharmaceutical research , including in the imaging of cells and tissues , the chemical analysis of drug compounds , and the detection of disease .