Layer-by-layer construction of graphene/cobalt phthalocyanine composite film on activated GCE for application as a nitrite sensor

Cui, Lili; Pu, Tao; Liu, Ying; He, Xingquan

doi:10.1016/j.electacta.2012.10.127

Cited by 105 publications

(45 citation statements)

References 40 publications

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“…Likewise, Cui et al also reported that AGCE has considerable influence on the immobilization of graphene/cobalt tetra sulfonated phthalocyanine [24]. Motivated by these literature works, in our work, we have prepared AGCE and utilized it for the preparation of highly stable MWCNT and NiTsPc composite through electrostatic interaction between positively charged AGCE and negatively charged MWCNT-NiTsPc.…”

Section: Introductionmentioning

confidence: 80%

Fabrication of Nickel Tetrasulfonated Phthalocyanine Functionalized Multiwalled Carbon Nanotubes on Activated Glassy Carbon Electrode for the Detection of Dopamine

et al. 2014

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The nickel tetrasulfonated phthalocyanine (NiTsPc) functionalized multiwalled carbon nanotube (MWCNT) nanocomposite was prepared by a simple sonochemical method. Here, NiTsPc served as a dispersing agent for MWCNT via ππ interaction between MWCNT and NiTsPc. The activated glassy carbon electrode (AGCE) modified with MWCNT‐NiTsPc composite exhibited a good electrocatalytic ability toward dopamine and displayed a good linear dependence in the concentration range of 20 nM–1.384 mM with a sensitivity of 0.17 µA µM−1 cm−2. The detection limit is 1 nM based on the signal‐to‐noise ratio of 3.

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Section: Introductionmentioning

confidence: 80%

Fabrication of Nickel Tetrasulfonated Phthalocyanine Functionalized Multiwalled Carbon Nanotubes on Activated Glassy Carbon Electrode for the Detection of Dopamine

et al. 2014

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“…Carbon based NMs formed by carbon in sp2 conformation have recently gained significant attention for their potential applications in a varied range of industries such as spintronics, 8,9 and sensor development. 10,11 Organic/polymeric NMs are frequently applied in nanomedicine. 12 Finally, hybrid NMs combine materials of different nature, e.g.…”

Section: Introductionmentioning

confidence: 99%

Novel ¹⁸F Labeling Strategy for Polyester-Based NPs for in Vivo PET-CT Imaging

Mauro

Gómez‐Vallejo²,

Baz³

et al. 2015

Bioconjugate Chem.

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Drug-loaded nanocarriers and nanoparticulate systems used for drug release require a careful in vivo evaluation in terms of physicochemical and pharmacokinetic properties. Nuclear imaging techniques such as positron emission tomography (PET) are ideal and noninvasive tools to investigate the biodistribution and biological fate of the nanostructures, but the incorporation of a positron emitter is required. Here we describe a novel approach for the (18)F-radiolabeling of polyester-based nanoparticles. Our approach relies on the preparation of the radiolabeled active agent 4-[(18)F]fluorobenzyl-2-bromoacetamide ([(18)F]FBBA), which is subsequently coupled to block copolymers under mild conditions. The labeled block copolymers are ultimately incorporated as constituent elements of the NPs by using a modified nano coprecipitation method. This strategy has been applied in the current work to the preparation of peptide-functionalized NPs with potential applications in drug delivery. According to the measurements of particle size and zeta potential, the radiolabeling process did not result in a statistically significant alteration of the physicochemical properties of the NPs. Moreover, radiochemical stability studies showed no detachment of the radioactivity from NPs even at 12 h after preparation. The radiolabeled NPs enabled the in vivo quantification of the biodistribution data in rats using a combination of imaging techniques, namely, PET and computerized tomography (CT). Low accumulation of the nanoparticles in the liver and their elimination mainly via urine was found. The different biodistribution pattern obtained for the "free" radiolabeled polymer suggests chemical and radiochemical integrity of the NPs under investigation. The strategy reported here may be applied to any polymeric NPs containing polymers bearing a nucleophile, and hence our novel strategy may find application for the in vivo and noninvasive investigation of a wide range of NPs.

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“…In particular, carbon allotropes are most used in matters of chemical sensors, especially in the electrochemical field. Sensors based on these carbonaceous materials have been reported in literature with applications in many fields such as food 8, clinical 9, environmental 10, in combination with biomolecules such as enzymes 11, aptamers 12, as well as with metallic nanoparticles 13, macrocyclic compounds 14, polymers 15. The first carbon‐based electrodes are those made of graphite.…”

Section: Introductionmentioning

confidence: 99%

Redox‐ and Protonation‐Induced Fluorescence Switch in a New Triphenylamine with Six Stable Active or Non‐Active Forms

Quinton

Alain-Rizzo

Dumas‐Verdes

et al. 2014

Chemistry A European J

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The synthesis, photophysical and electrochemical properties as well as theoretical calculation studies of a newly designed triphenylamine derivative are described. This original compound displays one neutral form, three oxidized forms, and two protonated forms with distinct photophysical characteristics. The interplay of the emission with the protonation or the redox state (electrofluorochromism) has been explored and an on-off-on-off fluorescence switching was observed in the case of oxidation and an on-on-off fluorescence switching in the case of protonation.

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Layer-by-layer construction of graphene/cobalt phthalocyanine composite film on activated GCE for application as a nitrite sensor

Cited by 105 publications

References 40 publications

Fabrication of Nickel Tetrasulfonated Phthalocyanine Functionalized Multiwalled Carbon Nanotubes on Activated Glassy Carbon Electrode for the Detection of Dopamine

Fabrication of Nickel Tetrasulfonated Phthalocyanine Functionalized Multiwalled Carbon Nanotubes on Activated Glassy Carbon Electrode for the Detection of Dopamine

Novel ¹⁸F Labeling Strategy for Polyester-Based NPs for in Vivo PET-CT Imaging

Redox‐ and Protonation‐Induced Fluorescence Switch in a New Triphenylamine with Six Stable Active or Non‐Active Forms

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Layer-by-layer construction of graphene/cobalt phthalocyanine composite film on activated GCE for application as a nitrite sensor

Cited by 105 publications

References 40 publications

Fabrication of Nickel Tetrasulfonated Phthalocyanine Functionalized Multiwalled Carbon Nanotubes on Activated Glassy Carbon Electrode for the Detection of Dopamine

Fabrication of Nickel Tetrasulfonated Phthalocyanine Functionalized Multiwalled Carbon Nanotubes on Activated Glassy Carbon Electrode for the Detection of Dopamine

Novel 18F Labeling Strategy for Polyester-Based NPs for in Vivo PET-CT Imaging

Redox‐ and Protonation‐Induced Fluorescence Switch in a New Triphenylamine with Six Stable Active or Non‐Active Forms

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Novel ¹⁸F Labeling Strategy for Polyester-Based NPs for in Vivo PET-CT Imaging