Green Synthesis of a Reversible “ON-OFF-ON” Fluorescent Sensor for Fe3+ using Licorice-Derived N-Doped Carbon Dots - Zubair Akram; Anam Arshad; Mohsin Tehseen; Muhammad Mehdi; Ali Raza; Yulan Shi; Nan Wang; Sajida Noureen; Feng Yu (Journal of Fluorescence, 2026)