Fluorescent dual-mode sensor for the determination of graphene oxide and catechin in environmental or food field.

ABSTRACT: The novel fluorescent sensor is proposed in this work based on the competitive interactions between the known bioactive compounds, riboflavin and catechin, which act as guests, and graphene oxide (GO) material that acts as host. Specifically, this proposal is based on an indicator displacement assay which allows the detection of GO and catechin (fluorescence quenching of riboflavin signal by GO and increase in fluorescence by catechin on the GO-riboflavin system). Three GO structures with different lateral dimensions and thickness were synthesized and tested, being able to be the three differentiated depending on the attenuation capacity of the fluorescent signal that each one possesses. The environmental analytical control of GO is more and more important, being this method sensitive and

SUBMITTER: Pinilla-Penalver E 

PROVIDER: S-EPMC10637338 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature