“…The diverse field of microbiology has been progressively developing over the last decades, largely owing to the steadily growing applications of a range of modern molecular spectroscopy techniques that provide molecular-level information on complicated microbiological objects and allow for successfully solving various bioanalytical problems, often in situ or in vivo (see, e.g., [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]). We would like to emphasize the informativity of very relevant vibrational spectroscopic techniques, including various modifications of infrared (conventional absorption [ 2 , 7 , 11 , 16 ], diffuse reflectance [ 3 , 6 ], attenuated total reflectance (ATR) [ 5 , 17 ] and surface-enhanced absorption [ 15 ] modes; 2D infrared [ 8 ]) and Raman [ 1 , 2 , 13 ] spectroscopies, as well as their combinations [ 4 , 14 ]; vibrational circular dichroism [ 12 ], optical activity [ 9 ], etc.…”