A benzothiazole-based receptor-immobilised silica nanoparticle as chemosensor for Hg<sup>2+</sup>

Lee, Jin Hyeok; Lee, Ji Ha; Kim, Sung Kuk; Jung, Jong Hwa

doi:10.1080/10610278.2015.1075537

Cited by 6 publications

(1 citation statement)

References 30 publications

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“…Synthetic receptors for sensing toxic heavy metal ions have been of widespread interest due to the environmental and clinical importance . Thus, many efforts have been devoted to design and construction of the photophysical chemosensors for detecting mercury(II), lead(II), and cadmium(II) . In the category of sensor molecules, dye-attached macrocycles represent a promising research area, not only in terms of their chromo- or fluorophoric function but also because of their high selectivity for the metal ions of interest, including mercury(II) and other heavy metal species.…”

Section: Introductionmentioning

confidence: 99%

Cation-Selective and Anion-Controlled Fluorogenic Behaviors of a Benzothiazole-Attached Macrocycle That Correlate with Structural Coordination Modes

Chang

Kim

et al. 2016

Inorg. Chem.

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We report how the metal cation and its counteranions cooperate in the complexation-based macrocyclic chemosensor to monitor the target metal ion via the specific coordination modes. The benzothiazolyl group bearing NO2S2-macrocycle L was synthesized, and its mercury(II) selectivity (for perchlorate salt) as a dual-probe channel (UV-vis and fluorescence) chemosensor exhibiting the largest blue shift and the fluorescence turn-off was observed. In the mercury(II) sensing with different anions, except ClO4(-) and NO3(-), no responses for mercury(II) were observed with other anions such as Cl(-), Br(-), I(-), SCN(-), OAc(-), and SO4(2-). A crystallographic approach for the mononuclear mercury(II) perchlorate complex [Hg(L)(ClO4)2]·0.67CH2Cl2 (1) and polymeric mercury(II) iodide complex [Hg(L)I2]n (2) revealed that the observed anion-controlled mercury(II) sensing in the fluorescence mainly stems from the endo- and exocoordination modes, depending on the anion coordinating ability, which induces either the Hg-Ntert bond formation or not. The detailed complexation process with mercury(II) perchlorate associated with the cation sensing was also monitored with the titration methods by UV-vis, fluorescence spectroscopy, and cold-spray ionization mass spectrometry.

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Section: Introductionmentioning

confidence: 99%

Cation-Selective and Anion-Controlled Fluorogenic Behaviors of a Benzothiazole-Attached Macrocycle That Correlate with Structural Coordination Modes

Chang

Kim

et al. 2016

Inorg. Chem.

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Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Chatterjee

Liang

et al. 2019

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Hybrid fluorescent materials constructed from organic chelating fluorescent probes and inorganic solid supports by covalent interactions are a special type of hybrid sensing platform that has gained much interest in the context of metal ion sensing applications owing to their excellent advantages, recyclability, and solubility/dispersibility in particular, as compared with single organic fluorescent molecules. In recent decades, SiO2 materials and core–shell Fe3O4@SiO2 nanoparticles have become important inorganic solid materials and have been used as inorganic solid supports to hybridize with organic fluorescent receptors, resulting in multifunctional fluorescent hybrid systems for potential applications in sensing and related research fields. Therefore, recent progress in various fluorescent‐group‐functionalized SiO2 materials is reviewed, with a focus on mesoporous silica nanoparticles and core–shell Fe3O4@SiO2 nanoparticles, as interesting fluorescent organic–inorganic hybrid materials for sensing applications toward essential and toxic metal ions. Selective examples of other types of silica/silicon materials, such as periodic mesoporous organosilicas, solid SiO2 nanoparticles, fibrous silica spheres, silica nanowires, silica nanotubes, and silica hollow microspheres, are also mentioned. Finally, relevant perspectives of metal‐ion‐sensing‐oriented silica‐fluorescent probe hybrid materials are provided.

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Benzothiazole based chemosensors having appended amino group(s): Selective binding of Hg2+ ions by three related receptors

Dhaka

Singh

Kaur

2017

Inorganica Chimica Acta

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A benzothiazole-based receptor-immobilised silica nanoparticle as chemosensor for Hg²⁺

Cited by 6 publications

References 30 publications

Cation-Selective and Anion-Controlled Fluorogenic Behaviors of a Benzothiazole-Attached Macrocycle That Correlate with Structural Coordination Modes

Cation-Selective and Anion-Controlled Fluorogenic Behaviors of a Benzothiazole-Attached Macrocycle That Correlate with Structural Coordination Modes

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing

Benzothiazole based chemosensors having appended amino group(s): Selective binding of Hg2+ ions by three related receptors

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A benzothiazole-based receptor-immobilised silica nanoparticle as chemosensor for Hg2+

Cited by 6 publications

References 30 publications

Cation-Selective and Anion-Controlled Fluorogenic Behaviors of a Benzothiazole-Attached Macrocycle That Correlate with Structural Coordination Modes

Cation-Selective and Anion-Controlled Fluorogenic Behaviors of a Benzothiazole-Attached Macrocycle That Correlate with Structural Coordination Modes

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO2 Materials and Core–Shell Fe3O4@SiO2 Nanoparticles for Metal Ion Sensing

Benzothiazole based chemosensors having appended amino group(s): Selective binding of Hg2+ ions by three related receptors

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Product

Resources

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A benzothiazole-based receptor-immobilised silica nanoparticle as chemosensor for Hg²⁺

Design of Multifunctional Fluorescent Hybrid Materials Based on SiO₂ Materials and Core–Shell Fe₃O₄@SiO₂ Nanoparticles for Metal Ion Sensing