Details

Autor(en) / Beteiligte

• Pratap, Ravi
• Hassan, Nurul
• Yadav, Monika
• Srivastava, Saurabh Kumar
• Chaudhary, Shilpi
• Verma, Anita Kamra
• Lahiri, Jayeeta
• Parmar, Avanish S

Titel

Biogenic synthesis of dual-emission chlorophyll-rich carbon quantum dots for detection of toxic heavy metal ions - Hg() and As() in water and mouse fibroblast cell line NIH-3T3

Ist Teil von

• Environmental science. Nano, 2024-04, Vol.11 (4), p.1636-1653

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Due to the excessive residues and serious adverse effects, it is urgent to develop an efficient method to detect Hg 2+ and As 3+ in drinking water to protect human health. In this study, a novel fluorometric sensor based on chlorophyll-rich carbon quantum dots (CQDs) for the detection of Hg 2+ and As 3+ ions was developed. The dual emitting (blue-green and red) CQDs were synthesized by a one-step solvothermal method using plumeria plant leaves as precursors. When Hg 2+ ions were added in the presence of CQDs, the red emission (676 nm) of the CQDs was quenched (OFF), while in the presence of As 3+ ions, the blue-green emission (485 nm) was enhanced (ON). The detection limits of 0.99 nM for Hg 2+ and 12.15 nM for As 3+ were validated for the proposed sensor. The biocompatibility, cytotoxicity, and bioimaging of the CQDs were investigated in the mouse fibroblast cell line NIH-3T3. The cellular uptake was also studied under the influence of Hg 2+ and As 3+ ions. Moreover, the novel chlorophyll-rich CQD-based fluorometric "ON-OFF" dual probe sensor was successfully applied to detect Hg 2+ and As 3+ in real water systems as well as in the mouse fibroblast cell line. Due to the excessive residues and serious adverse effects, it is urgent to develop an efficient method to detect Hg 2+ and As 3+ in drinking water to protect human health.