Clustering-Triggered Emission of EPS-605 Nanoparticles and Their Application in Biosensing.

ABSTRACT: Natural carbohydrates with intrinsic luminescent properties have drawn increasing attention thanks to their fundamental importance and promising applications. To expand the range of natural nonconventional biomacromolecule luminogens and to gain deep insights into their emission mechanism, we prepared EPS-605, a naturally occurring spherical nanoparticle based on negatively charged exopolysaccharides (EPS), and studied its emission behavior. It was found that EPS-605 was highly emissive in the aggregate state, such as powder and film. Furthermore, EPS-605 aqueous solutions exhibited concentration-enhanced emission characteristics. According to fluorescence spectra and confocal images, the fluorescence phenomenon of EPS-605 was not affected by the pH value and the carbon sources. The emissi

SUBMITTER: Li C 

PROVIDER: S-EPMC9571269 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature