Highly sensing and transducing materials for potentiometric ion sensors with versatile applicability

Huang, Mei‐Rong; Li, Xin‐Gui

doi:10.1016/j.pmatsci.2021.100885

Cited by 47 publications

(16 citation statements)

References 707 publications

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“…These surface stabilizers adsorb on nanoparticles and prevent irreversible agglomeration, resulting in stable dispersion with higher steric repulsion [ 19 ]. The previous studies have confirmed that nCPs preformed effectively in the removal of organic micropollutants and inorganic heavy metals [ 25 , 26 , 27 ], acid blue 161 [ 28 ], acrylic acid [ 29 , 30 ], benzene [ 31 ], and doxycycline [ 14 ]. Therefore, the excellent properties of CaO 2 to generate ·OH at a controlled rate drew an increasing number of researchers to apply CaO 2 in wastewater industry.…”

Section: Introductionmentioning

confidence: 93%

Effective Removal of Glyphosate from Aqueous Systems Using Synthesized PEG-Coated Calcium Peroxide Nanoparticles: Kinetics Study, H2O2 Release Performance and Degradation Pathways

Choong

Abdullah

et al. 2023

Polymers

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Glyphosate (N-phosphonomethyl glycine) is a non-selective, broad-spectrum organophosphate herbicide. Its omnipresent application with large quantity has made glyphosate as a problematic contaminant in water. Therefore, an effective technology is urgently required to remove glyphosate and its metabolites from water. In this study, calcium peroxide nanoparticles (nCPs) were functioned as an oxidant to produce sufficient hydroxyl free radicals (·OH) with the presence of Fe2+ as a catalyst using a Fenton-based system. The nCPs with small particle size (40.88 nm) and high surface area (28.09 m2/g) were successfully synthesized via a co-precipitation method. The synthesized nCPs were characterized using transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), Brunauer–Emmett–Teller analysis (BET), dynamic light scattering (DLS), and field emission scanning electron microscopy (FESEM) techniques. Under the given conditions (pH = 3.0, initial nCPs dosage = 0.2 g, Ca2+/Fe2+ molar ratio = 6, the initial glyphosate concentration = 50 mg/L, RT), 99.60% total phosphorus (TP) removal and 75.10% chemical oxygen demand (COD) removal were achieved within 75 min. The degradation process fitted with the Behnajady–Modirshahla–Ghanbery (BMG) kinetics model. The H2O2 release performance and proposed degradation pathways were also reported. The results demonstrated that calcium peroxide nanoparticles are an efficient oxidant for glyphosate removal from aqueous systems.

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Section: Introductionmentioning

confidence: 93%

Effective Removal of Glyphosate from Aqueous Systems Using Synthesized PEG-Coated Calcium Peroxide Nanoparticles: Kinetics Study, H2O2 Release Performance and Degradation Pathways

Choong

Abdullah

et al. 2023

Polymers

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“…3−5 For a half century since 1970s (coated wire ISE), 17,18 the SC-ISEs have achieved numerous ion analysis through developing both more selective ionophores 19−22 and advanced transducers. 23 For example, ammonium ion (NH 4 + ) is a significant analyte in the environmental, agricultural, and clinical detection fields. 24,25 In the past 20 years, nonactin ionophore-based SC-ISEs 26 remain by far the most employed potentiometric NH 4 + sensors (Figure 1a).…”

Section: Introductionmentioning

confidence: 99%

“…The state-of-the-art SC-ISEs constitute a sandwich structure including the conductive substrate, solid contact, and ionophore-based ion-selective membrane (ISM) layers. The solid contact layer works the ion-to-electron signal transduction (called transducer), and the ISM plays the role of target ion recognition. − For a half century since 1970s (coated wire ISE), , the SC-ISEs have achieved numerous ion analysis through developing both more selective ionophores − and advanced transducers . For example, ammonium ion (NH 4 + ) is a significant analyte in the environmental, agricultural, and clinical detection fields. , In the past 20 years, nonactin ionophore-based SC-ISEs remain by far the most employed potentiometric NH 4 + sensors (Figure a).…”

Section: Introductionmentioning

confidence: 99%

Beyond Nonactin: Potentiometric Ammonium Ion Sensing Based on Ion-selective Membrane-free Prussian Blue Analogue Transducers

Zhong

Tang

et al. 2022

Anal. Chem.

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The determination of ammonium ions (NH4 +) is of significance to environmental, agriculture, and human health. Potentiometric NH4 + sensors based on solid-contact ion selective electrodes (SC-ISEs) feature point-of-care testing and miniaturization. However, the state-of-the-art SC-ISEs of NH4 + during the past 20 years strongly rely on the organic ammonium ionophore-based ion selective membrane (ISM), typically by nonactin for the NH4 + recognition. Herein, we report a Prussian blue analogue of copper(II)-hexacyanoferrate (CuHCF) for an ISM-free potentiometric NH4 + sensor without using the ionophores. CuHCF works as a bifunctional transducer that could realize the ion-to-electron transduction and NH4 + recognition. CuHCF exhibits competitive analytical performances regarding traditional nonactin-based SC-ISEs of NH4 +, particularly for the selectivity toward K+. The cost and preparation process have been remarkably reduced. The theoretical calculation combined with electrochemical tests further demonstrate that relatively easier intercalation of NH4 + into the lattices of CuHCF determines its selectivity. This work provides a concept of the ISM-free potentiometric NH4 + sensor beyond the nonactin ionophore through a CuHCF bifunctional transducer.

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“…In these it is used to monitor analyzes of heavy metal ions. [10][11][12][13][14] Considering this, polymer-metal complex was studied in UV-Vis spectrophotometer. Enzymatic and chemical oxidative polymers were synthesized in Horseradish peroxidase (HRP)/hydrogen peroxide (H 2 O 2 ), 4-aminosalicylic acid, [15] carbazole containing hydroxy functional group, [16] 2,6-diamino pyridine.…”

Section: Introductionmentioning

confidence: 99%

Biological Activity and Optical Sensor Properties of Green Synthesis Polymer

2022

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In this study, 4-amino-3-hydroxy-1-naphthalene sulfonic acid (Monomer) was converted to its enzyme-catalyzed oxidative polymerization (Poly-enz) in dioxane solvent by horseradish peroxidase enzyme (HRP) in the presence of hydrogen peroxide as oxidant. For the analysis of the monomer and its synthesized Poly-enz, 1 H-NMR, 13 C-NMR, FT-IR, TGA, and SEM measurements were determined. In addition, the optical ion sensor properties of Poly-enz against metals such as Ag + , Cd 2 + , Co 2 + , Hg 2 + , Ni 2 + , Pb 2 + , Zn 2 + , Cu 2 + were examined with UV-Vis spectrophotometer. It was observed that Cu metal showed sensory properties. DNA cleavage and DNA binding activities of monomer and Poly-enz were done using by agarose gel electrophoresis and UV-Vis methods, respectively. It was seen that the Poly-enz interacted with DNA electrostatically. This enzymatic polymer was found to cleave pBR322 plasmid DNA both hydrolytically and oxidatively as well. The antioxidant activities of the compounds were examined by three different methods (DPPH, ABTS, FRAP) and it was found that the Poly-enz showed high antioxidant activity compared to its monomer. Antimicrobial activities were studied against various bacterial and yeast cultures by the minimum inhibition concentration (MIC) method. It was observed that the antimicrobial activities of the enzymatic polymer in different microorganisms increased depending on the concentration.

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Highly sensing and transducing materials for potentiometric ion sensors with versatile applicability

Cited by 47 publications

References 707 publications

Effective Removal of Glyphosate from Aqueous Systems Using Synthesized PEG-Coated Calcium Peroxide Nanoparticles: Kinetics Study, H2O2 Release Performance and Degradation Pathways

Effective Removal of Glyphosate from Aqueous Systems Using Synthesized PEG-Coated Calcium Peroxide Nanoparticles: Kinetics Study, H2O2 Release Performance and Degradation Pathways

Beyond Nonactin: Potentiometric Ammonium Ion Sensing Based on Ion-selective Membrane-free Prussian Blue Analogue Transducers

Biological Activity and Optical Sensor Properties of Green Synthesis Polymer

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