Highly selective, sensitive and simpler colorimetric sensor for Fe2+ detection based on biosynthesized gold nanoparticles

Selective Fe(ii)-fluorescence sensor with validated two-consecutive working range using N,S,I-GQDs associated with garlic extract as an auxiliary green chelating agent

“…As a result, the quenching effectiveness of Fe 2+ was clearly demonstrated as measured by F 0 – F , where F 0 and F are the fluorescence intensities of the metal ions at various concentrations. 48 ( Fig. 8d ).…”

Fabrication of multifunctional 3D-flower-shaped NaTb(MoO4)2:Dy3+@Phen and NaTb(WO4)2:Dy3+@Phen nanoparticle materials for efficacious luminescence sensing of Fe2+ ions and photocatalytic degradation of rhodamine B in an aqueous medium

“…NaTb(MoO 4 ) 2 :Dy 3+ @Phen was found to show good potential outcomes compared to other previously reported chemical sensors. 65–69…”

“…NaTb(MoO 4 ) 2 :Dy 3+ @Phen was found to show good potential outcomes compared to other previously reported chemical sensors. [65][66][67][68][69] Proposed luminescence quenching mechanism for Fe 2+ ions…”

Recent progress in 0D optical nanoprobes for applications in the sensing of (bio)analytes with the prospect of global health monitoring and detailed mechanistic insights

“…Recently, AuNPs-based chromo-fluorogenic nanosensors exhibited excellent biological applications towards the target-specific recognition of various bio-analytes, such as protein, DNA, lysozymes, dopamine, biothiols such as cysteine and glutathione, and bio-relevant ions such as Fe 3+ and Fe 2+ etc . 206–232 (Table 5)…”

“…In this regard, to develop a cost-effective and green approach, Sirajuddin et al reported the preparation of green bell pepper, Capsicum annuum L ., extract-capped AuNPs for the selective chromogenic detection of Fe 2+ (red to purple) with a clear bathochromic and hyperchromic shift in the UV-Vis absorption spectra due to the aggregation of the AuNPs, as confirmed from AFM studies. 212…”