Determination of Hg2+ and Cu2+ ions by dual-emissive Ag/Au nanocluster/carbon dots nanohybrids: Switching the selectivity by pH adjustment

Environmentally friendly synthesis of photoluminescent biochar dots from waste soy residues for rapid monitoring of potentially toxic elements

“…The detection limit was estimated to be 100 nM at a signal-to-noise ratio of 3, much lower than using a membrane based mercury sensor (15 mM) 29 but higher than a (Au/Ag)@Ins NC nanohybrids based sensing system (7 nM). 30 Fig. 6C shows the PL spectra of BCDs dispersion in the presence of different Fe 3+ concentrations and indicates the dependence of F/F 0 on the concentration of Fe 3+ ions in Fig.…”

Anchoring zinc-doped carbon dots on a paper-based chip for highly sensitive fluorescence detection of copper ions

“…The proposed method shows lower detection limit and wider detection range compared with the reported analysis methods which were based on SERS, 42 voltammetry, 43 and fluorimetry. 17,19,39,44,45…”

Bio-Mediated Synthesis of Nanoparticles for Fluorescence Sensors

“…Besides, some of these heavy metals, even at a low concentration level, are highly poisonous to human health as a result of accumulation in organs. 42,105,[114][115][116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131] Therefore, numerous NIRemitting AuNCs have been employed as a platform to monitor whether the level of heavy metal ions surpasses the suggested limits (Table 3). Inorganic anions, such as cyanide (CN -), sulfide (S 2-), and (nitrite) NO 2-, retain the damaging influence on ecological systems as well as human health.…”