Superquenching of aromatic amino acids in the presence of rhodium nanoparticles

In this research rhodium nanoparticles (RhNPs) were synthesized and used for studying the fluorescence of aromatic amino acids (tryptophan (Trp) and tyrosine (Tyr)). Stern-Volmer plots were constructed and the corresponding quenching constants were calculated. It was determined that with increasing concentration of RhNPs, the fluorescence intensity of aromatic amino acids decreases as a result of different types of quenching.