Gel electrophoresis separation and origins of light emission in fluorophores prepared from citric acid and ethylenediamine.

ABSTRACT: We investigated light emission of hydrothermally treated citric acid and ethylenediamine (EDA) with various precursor ratios using gel-electrophoresis. We show that this relatively simple approach can deliver significant insights into the origins of photoluminescence. We found that products of the synthesis consist of both positively and negatively charged species and exhibit large dispersion in electrophoretic mobility (i.e. charge-to-size ratio). We observed that despite the large dispersion of the reaction products the blue light emission is confined to discrete bands clearly identifiable in the gel. We demonstrate clear evidence that this emission originates from the negatively charged light molecular fraction with the highest mobility which shows no excitation-dependent light emission

SUBMITTER: Kokorina AA 

PROVIDER: S-EPMC6789027 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature