Spectral properties of chiral carbon nanoparticles based on glutathione

In this work, carbon nanoparticles (C-dots) were obtained from solution of chiral L-glutathione molecules in formamide. The resulting C-dots have photoluminescence (PL) in the red region of the spectrum at 370–470 nm and a high quantum yield for this band, reaching 10.8%. In the circular dichroism spectra of these C-dots, a signal in the optical transition region of 370–470 nm, associated with $sp^2$-hybridized carbon domains doped with nitrogen and oxygen atoms was observed.