Photoluminescence of carbon dots and their applications in Hela cell imaging and Fe 3+ ion detection

Abstract

Carbon dots are a new and important form of zero-dimensional carbonaceous nanomaterials. In our present work, disperse water-soluble fluorescent carbon dots were prepared using coffee grounds as raw material by hydrothermal treatment. The as-prepared carbon dots exhibit an excitation-dependent and high photostable photoluminescence behavior which can be applied to Hela cell imaging. Notably, the fluorescence of the carbon dots can be quenched by Fe³⁺ ions, which can serve as a useful fluorescent probe for detecting Fe³⁺ ions.

from ! Medicine by Alexandros G. Sfakianakis via a.lsfakia on Inoreader http://ift.tt/2r3I0qG
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