Low symmetric metallophthalocyanine modified electrode via click chemistry for simultaneous detection of heavy metals

Fomo, Gertrude; Nwaji, Njemuwa; Nyokong, Tebello

doi:10.1016/j.jelechem.2018.02.016

Cited by 32 publications

(14 citation statements)

References 38 publications

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Section: Phthalocyanines For the Development Of New Electrodesmentioning

confidence: 94%

“…The same group also reported that the asymmetrical alkyne cobalt(II) phthalocyanine CoPc44 after being immobilized in glassy carbon electrode (GCE) modified with the azido component, showed favorable sensitivity and lower LOD for Hg(II), Cu(II), Pb(II), and Cd(II) ions [49]. Soon afterwards, the same group extended the study to electrodes prepared with the same Pc but coordinated with Co(II) and Ni(II) ions (Scheme 22) and in the case of hydrazine they found LOD values of 6.09 µM and 8.69 µM for CoPc41-GCE and NiPc41-GCE respectively, while the sensitivity was 51.32 µA mM −1 and 111.2 µA mM −1 [46].…”

Section: Phthalocyanines For the Development Of New Electrodesmentioning

confidence: 95%

“…The same group also reported that the asymmetrical alkyne cobalt(II) phthalocyanine CoPc44 after being immobilized in glassy carbon electrode (GCE) modified with the azido component, showed favorable sensitivity and lower LOD for Hg(II), Cu(II), Pb(II), and Cd(II) ions [49]. In another contribution, the authors reported the immobilization of CoPc43 with 4-ethynylbenzyloxy units ( Figure 5) in glassy carbon electrodes modified with azide molecules and found that the platform is a good probe for hydrazine, with good catalytic rate constant (8.45 × 10 3 M −1 s −1 ) and low LOD (3.28 µM) [48].…”

Section: Phthalocyanines For the Development Of New Electrodesmentioning

confidence: 95%

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Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

et al. 2020

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The reaction between organic azides and alkyne derivatives via the Cu(I)-catalyzed azide–alkyne cycloaddition (CuAAC) is an efficient strategy to combine phthalocyanines and analogues with different materials. As examples of such materials, it can be considered the following ones: graphene oxide, carbon nanotubes, silica nanoparticles, gold nanoparticles, and quantum dots. This approach is also being relevant to conjugate phthalocyanines with carbohydrates and to obtain new sophisticated molecules; in such way, new systems with significant potential applications become available. This review highlights recent developments on the synthesis of phthalocyanine, subphthalocyanine, and porphyrazine derivatives where CuAAC reactions are the key synthetic step.

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Section: Phthalocyanines For the Development Of New Electrodesmentioning

confidence: 94%

Section: Phthalocyanines For the Development Of New Electrodesmentioning

confidence: 95%

“…The same group also reported that the asymmetrical alkyne cobalt(II) phthalocyanine CoPc44 after being immobilized in glassy carbon electrode (GCE) modified with the azido component, showed favorable sensitivity and lower LOD for Hg(II), Cu(II), Pb(II), and Cd(II) ions [49]. In another contribution, the authors reported the immobilization of CoPc43 with 4-ethynylbenzyloxy units ( Figure 5) in glassy carbon electrodes modified with azide molecules and found that the platform is a good probe for hydrazine, with good catalytic rate constant (8.45 × 10 3 M −1 s −1 ) and low LOD (3.28 µM) [48].…”

Section: Phthalocyanines For the Development Of New Electrodesmentioning

confidence: 95%

See 1 more Smart Citation

Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

et al. 2020

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“…In this context, click chemistry has been used as a versatile tool for different electrode materials functionalization using a variety of methodologies [13]. The characteristics and application of the recent configurations reported are summarized in Table 1 [10,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40]. In the following sections they are discussed according to the different functionalization strategies.…”

Section: Preparation Of Electrochemical Platformsmentioning

confidence: 99%

Copper(I)-Catalyzed Click Chemistry as a Tool for the Functionalization of Nanomaterials and the Preparation of Electrochemical (Bio)Sensors

Yáñez‐Sedeño

González‐Cortés

Campuzano

et al. 2019

Sensors

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Proper functionalization of electrode surfaces and/or nanomaterials plays a crucial role in the preparation of electrochemical (bio)sensors and their resulting performance. In this context, copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) has been demonstrated to be a powerful strategy due to the high yields achieved, absence of by-products and moderate conditions required both in aqueous medium and under physiological conditions. This particular chemistry offers great potential to functionalize a wide variety of electrode surfaces, nanomaterials, metallophthalocyanines (MPcs) and polymers, thus providing electrochemical platforms with improved electrocatalytic ability and allowing the stable, reproducible and functional integration of a wide range of nanomaterials and/or different biomolecules (enzymes, antibodies, nucleic acids and peptides). Considering the rapid progress in the field, and the potential of this technology, this review paper outlines the unique features imparted by this particular reaction in the development of electrochemical sensors through the discussion of representative examples of the methods mainly reported over the last five years. Special attention has been paid to electrochemical (bio)sensors prepared using nanomaterials and applied to the determination of relevant analytes at different molecular levels. Current challenges and future directions in this field are also briefly pointed out.

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“…Over the past few years, there has been an increasing demand for simple and effective methods to detect toxic odors that are produced by organic volatile compounds, due to their damaging effects on biological systems and the environment in general [1][2][3]. Among these hazardous gases, amines complexes are commonly used in agricultural, pharmaceutical, dye manufacturing, and food processing industries [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Fluorinated Chromium Phthalocyanine Thin Films: Characterization and Ammonia Vapor Detection

Banimuslem

Kadem

2018

Chemosensors

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Thin films of fluorinated chromium phthalocyanine were prepared using spin coating techniques and annealed at 100, 200, 300, and 400 °C. The prepared films were investigated using UV-Visible absorption spectroscopy, Raman spectroscopy, and atomic force microscopy. The band gap characteristics were evaluated to study the difference electronic transitions between the prepared thin films under different annealing temperatures. Films were exposed to ammonia vapor in a concentration range of 40–100 ppm to demonstrate the gas sensing activity of prepared devices. Resistance versus voltage behavior was investigated upon the exposure of ammonia gas and the samples show an increase in the resistance towards the existence of ammonia molecules. The dependency of the sensors on time was studied to evaluate the response and recovery time, which were found to be 10 and 13 s respectively.

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Low symmetric metallophthalocyanine modified electrode via click chemistry for simultaneous detection of heavy metals

Cited by 32 publications

References 38 publications

Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

Copper(I)-Catalyzed Click Chemistry as a Tool for the Functionalization of Nanomaterials and the Preparation of Electrochemical (Bio)Sensors

Fluorinated Chromium Phthalocyanine Thin Films: Characterization and Ammonia Vapor Detection

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