Here we used a single stage Low Frequency Raman (LF-Raman) spectrometer to study a series of diastereomeric analogue peptides to investigate the effect of peptides self-assembly on the LF-Raman modes. 
Low Frequency Raman (LF-Raman) spectrometer
The structural variation of the diastereomeric analogues resulted in distinct self-assembly groups, as confirmed by transmission electron microscopy (TEM) and dynamic light scattering (DLS) data. 
Transmission Electron Microscopy (TEM)
The structural variation of the diastereomeric analogues resulted in distinct self-assembly groups, as confirmed by transmission electron microscopy (TEM) and dynamic light scattering (DLS) data. 
Dynamic Light Scattering (DLS)
The correlation between the spectral features and structural morphologies was further supported by principal component analysis (PCA). 
Principal Component Analysis (PCA)