Abstract Copper ion (Cu 2+) and l-cysteine (l-Cys) detection is critically important since an
abnormal level of Cu 2+ or l-Cys is an indicator for many diseases. In this paper, we …

Carbon dot (CD)-based fluorescent probes have been widely exploited; however, multi-
component detection using CDs without tedious surface modification is always a …

A highly sensitive and selective fluorescent “on–off–on” strategy is established for the
synchronous detection of Cu2+ and glutathione in aqueous solution. Red carbon dots (R …

An efficient strategy for selective fluorescent detection of Cu2+ was developed based on the
carbon quantum dots (CQDs) nanoconjugated with a specific organic molecule, amino …

Carbon dots were synthesized by a simple and green strategy for selective and sensitive
Cu2+ ion detection using both down and upconversion fluorescence. These fluorescent …

Herein, spirulina algae were used for synthesizing green fluorescent-carbon dots (G-CDs)
due to their featured properties and compatibility in the environment. New G-CDs-based …

A novel sensing system has been designed for the detection of cupric ions. It is based on the
quenched fluorescence signal of carbon dots (CDs), which were carbonized from poly …

We report a controllable strategy for fabrication of green and blue fluorescent carbon
nanodots (CDs), and demonstrate their applications for pH and Cu 2+ sensing in living cells …

Renewable biowaste-derived carbon dots have garnered immense interest owing to their
exceptional optical, fluorescence, chemical, and environmentally friendly attributes, which …

Fluorescent carbon dots (N-CDs) were synthesized from ascorbic acid and urea following a
green route and were characterized on the basis of analytical, spectroscopic, and …