Suzuki coupling derived indolocarbazole based macromolecule as a solid phase/solution phase sensor for Hg2+: Experimental and theoretical explorations

Vintu, M.; Rajan, Vijisha K.; Unnikrishnan, G.; Muraleedharan, K.

doi:10.1016/j.eurpolymj.2019.02.033

Cited by 5 publications

(2 citation statements)

References 37 publications

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“…Recently, an indolocarbazole-based macromolecule derived from Suzuki coupling was reported as a solid phase/solution phase sensor for Hg(II). 11 Fmoc solid-phase peptide synthesis (SPPS) was used to give a multifunctional uorescent peptide sensor for Hg(II) and Cu(II). 12 Both of them have high sensitivity and selectivity, whereas high cost of synthesis and purication may inuence their application.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure–fluorescence relationships and density functional theory studies of novel naphthalimide–piperazine–pyridine-based polystyrene sensors for Hg(ii) detection

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Synthesis, structure–fluorescence relationships and density functional theory studies of novel naphthalimide–piperazine–pyridine-based polystyrene sensors for Hg(ii) detection

et al. 2020

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“…On the other hand, electrochemical sensors have very strict requirements on electrode materials. Traditional electrochemical sensors are often classified into two types, with or without enzymes, depending on whether or not enzymes are involved. − Enzyme-based sensors modified by organic biological macromolecules often have complex preparation processes and short effective lifetimes and are easily affected by the environment. − In contrast, most enzyme-free sensing materials are directly composed of inorganic nanomaterials, such as metal oxides , and metal hydroxides. − The performance and stability of these materials can be improved by modulating their morphology, but the high efficiency and specificity of molecular recognition are often insufficient. Therefore, the development of electrode materials that can avoid these defects, without changing the detection performance of the sensor itself, is the key to fundamentally improve the performance of electrochemical sensors.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Host–Guest Assembly Based on Phosphotungstate Nanostructures for Pseudocapacitive and Electrochemical Sensing Applications

Yang

Cui

et al. 2022

ACS Appl. Nano Mater.

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Flexible ligands and multinuclear complexes were assembled into nanoscale {P2W18O62} polyoxometalates (POMs) to generate two phosphotungstate hybrid derivatives, (H2bip)2{H2P2 W18O62}·2H2O (1) and (bipy)0.5{Ag(bipy)2}{Ag4(bipy)7}{NaP2W18O62}·H2O (2) (bip = 1,5-bis(imidazole-1-yl)pentane; bipy = 2,2′-bipy), via a precursor hydrothermal method. Compound 1 is a bip ligand modified 4,8-connected supramolecular net with {415;612;8}{45;6}2 topology. In compound 2, the monocore complexes {Ag(bipy)2} and tetranuclear complexes {Ag4(bipy)7} self-associate to generate two supramolecular chains A and B, respectively, which are further alternately joined together to form a unique metal–organic framework with irregular cavities via weak actions and π–π stacking. The Na-linked {P2W18O62} dipolymers as guest units were embedded into the holes, leading to a 3D supramolecular host–guest assemblies. The capacitive performance test reveals that 2-GCE/-CPE presents improved specific capacitance (802.4 and 752.1 F/g at 3 A/g), cycle efficiency (93.6 and 94.8% after the 5000th cycle), and electrical conductivity compared to the precursor and bip ligand modified compound 1. The electrocatalytic comparative data shows that 2-GCE has enhanced electrochemical redox capacity compared to the precursor and compound 1. Further sensing tests display that 2-GCE shows strong electrochemical responses to H2O2/AA at voltages of −0.41/0.36 V with a lower detection line of 0.33/0.05 μM, a wider linear range of 1.0 μM to 3.18 mM/0.15 μM to 2.33 mM, merit selectivity, and reproducibility. The excellent capacitive and sensing performances are related to increased redox centers, improved ion/electron conversion efficiency, and host–guest structural stability resulting from the introduction of multinuclear complexes, irregular holes, and abundant π–π stacking. This study not only enriches the variety of Dawson-type POMs but also provides a feasible idea for enhancing their electrochemical capacitance and sensing performance.

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Semiconducting indolocarbazole based polymer decorated with magnetic ferrofluid for efficient Cr(VI) removal

et al. 2023

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Suzuki coupling derived indolocarbazole based macromolecule as a solid phase/solution phase sensor for Hg2+: Experimental and theoretical explorations

Cited by 5 publications

References 37 publications

Synthesis, structure–fluorescence relationships and density functional theory studies of novel naphthalimide–piperazine–pyridine-based polystyrene sensors for Hg(ii) detection

Synthesis, structure–fluorescence relationships and density functional theory studies of novel naphthalimide–piperazine–pyridine-based polystyrene sensors for Hg(ii) detection

Supramolecular Host–Guest Assembly Based on Phosphotungstate Nanostructures for Pseudocapacitive and Electrochemical Sensing Applications

Semiconducting indolocarbazole based polymer decorated with magnetic ferrofluid for efficient Cr(VI) removal

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