Facile preparation and characterization of new green emitting carbon dots for sensitive and selective off/on detection of Fe3+ ion and ascorbic acid in water and urine samples and intracellular imaging in living cells

Miscanthus grass-derived carbon dots to selectively detect Fe3+ ions

“…The Fe 3+ ions could coordinate with amino and carboxyl groups which are present in the N-doped MCDs (as conrmed in the FTIR spectra as well). 50 The radiative transition was interrupted; and this led to quenching of uorescence emission. In Fig.…”

Highly fluorescent carbon dots as an efficient nanoprobe for detection of clomifene citrate

“…S1, † the uorescence decay proles of the two solutions are almost fully overlapped, both of which follow double-exponential decay kinetics, the average uorescence lifetimes of CDs (6.74 ns) and CDs-CC system (6.89 ns) are similar, which preliminarily indicates the static quenching interaction between CDs and CC. 54 The uorescence emission intensities of the CDs-CC system at different CC concentrations were further analyzed according to Stern-Volmer equation (eqn (1)) at 298 K. 55…”

Mint leaf derived carbon dots for dual analyte detection of Fe(iii) and ascorbic acid

“…Shamsipur et al synthesized green emitting CDs for the same application by employing chemical precursors such as para amino salicylic acid and ethylene glycol dimethacrylate. 27 Reports on dual analyte determination of Fe 3+ and AA using CDs derived from natural precursors are rare in literature. Here in this work, a facile, cost effective and greener approach is adopted to obtain cyan luminescent CDs from fresh mint leaves by hydrothermal treatment (Fig.…”