Cathodic electrochemiluminescence of meso-tetra(4-carboxyphenyl) porphyrin/potassium peroxydisulfate system in aqueous media

Luo, Dan; Huang, Baomei; Wang, Li; Idris, Ahmed Mahmoud; Wang, Shixia; Lu, Xiaoquan

doi:10.1016/j.electacta.2014.11.004

Cited by 35 publications

(19 citation statements)

References 63 publications

(55 reference statements)

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“…The potential window capable of reducing both luminophore and coreactant is significant for triggering efficient DIECL of THPP@β-CD/K 2 S 2 O 8 system. According to our previous works − and the electrochemistry demonstrated in Figure B, the reduction peak potential of porphyrins in PBS is found to be around −1.5 V. The efficient reduction of coreactant for accumulation of radicals is also an important factor affecting DIECL performance of THPP@β-CD/K 2 S 2 O 8 . As exhibited in Figure S2 (SI), the DIECL intensity first increases and then decreases with extending the potential window, showing the strongest DIECL signal with the potential window between −0.2 and −1.6 V. This is due to the potential window (−0.2 to −1.6 V) provides the best compromise between the radical concentration and stability of THPP@β-CD •– and SO 4 •– .…”

Section: Results and Discussionmentioning

confidence: 61%

“…24 However, ECL application of these porphyrins in aqueous phase for analytical purposes, especially for future important biological targets, have been very limited. Although few works on ECL of porphyrins in aqueous solutions have been reported, such as H 2 TSMP by Chen et al, 25 TCPP 26,27 and TSPP 28 by our group, and an interfacial electron-induced ECL of H 2 TPP in two immiscible solutions, 29 the fact that these processes are facilitated by porphyrin aggregates (J-or Htype) is due to intermolecular π−π stacking. The aggregationcaused quenching of light emissions would occur and tend to hamper their actual optical performance of porphyrins.…”

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confidence: 83%

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Depolymerization-Induced Electrochemiluminescence of Insoluble Porphyrin in Aqueous Phase

Han

Wei

et al. 2020

Anal. Chem.

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Exploring efficient and robust electrochemiluminescence (ECL) performance of liposoluble porphyrins in aqueous phase for analytical purposes especially for important biological targets is still very challenging. In this work, a novel depolymerization-induced electrochemiluminescence (DIECL) of porphyrin and β-cyclodextrin (β-CD) self-assembly through a coreactant route was discovered. Among the studied meso-tetrasubstituted porphyrins, self-assembly of 5,10,15,20-tetrakis(4-hydroxyphenyl) porphyrin (THPP) and β-CD (THPP@β-CD) exhibits the best DIECL behavior with high efficiency (21.8%) as well as good reproducibility and stability. A mechanistic study suggests that the facile complexation of porphyrins with amphiphilic β-CD via hydrogen bonding interaction greatly improves the water insolubility and the aggregation-caused deficient ECL of liposoluble porphyrins in aqueous solution. Furthermore, because of the strong hydrogen bonding between the hydroxyl groups on THPP@β-CD and a highly electronegative substrate, such THPP@β-CD is found to serve as an efficient luminophore for recognition of most electronegative fluoride (F–) in the aqueous phase with high sensitivity and selectivity, together with a low limit of detection (0.74 μΜ). The simplicity of this THPP@β-CD and its unique DIECL property in current work provides a new guide for the ECL applications of liposoluble porphyrins in aqueous phase.

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Section: Results and Discussionmentioning

confidence: 61%

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confidence: 83%

Depolymerization-Induced Electrochemiluminescence of Insoluble Porphyrin in Aqueous Phase

Han

Wei

et al. 2020

Anal. Chem.

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“…26 The stacked ECL spectra of ECL-2 and ECL-3 in Figure 3c− , respectively. 27 Subsequently, TCPP − reacted with SO 4…”

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confidence: 99%

“…Correponding to ECL-2 and ECL-3, a broad cathodic peak (cvp3) with a peak potential of −1.55 V in the CV curve (Figure S9, black line) was observed. Cvp3 might involve the reduction of TCPP and S 2 O 8 2– to TCPP – and SO 4 •– , respectively . Subsequently, TCPP – reacted with SO 4 •– to form TCPP*, accompanied by light emission of ECL-2.…”

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confidence: 99%

Potential-Resolved Multicolor Electrochemiluminescence of N-(4-Aminobutyl)-N-ethylisoluminol/tetra(4-carboxyphenyl)porphyrin/TiO₂ Nanoluminophores

et al. 2017

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Most electrochemiluminescence (ECL) studies involve single luminophore with a unique emission process, which severely limits its applications. Recently, multicolor ECL has attracted considerable interests. Herein, we report a novel nanoluminophore prepared by coating 5,10,15,20-tetrakis(4-carboxyphenyl)-porphyrin (TCPP) and N-(4-aminobutyl)-N-ethylisoluminol (ABEI) on the surface of TiO nanoparticles (TiO-TCPP-ABEI), which exhibited unique potential-resolved multicolor ECL emissions using HO and KSO as coreactants in an aqueous solution. Three ECL peaks, ECL-1 at 458 nm, ECL-2 at 686 nm, and ECL-3 at 529 nm, were obtained with peak potentials of 1.05, -1.65, and -1.85 V, which were attributed to the ECL emission of ABEI, TCPP, and TiO moiety of the nanoluminophores, respectively. Potential-resolved multicolor ECL from a nanoluminophore was observed for the first time in an aqueous solution. It opens a new research area of multicolor ECL of nanoluminophores, which is of great importance in ECL field from fundamental studies to practical applications.

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“…To implement the sensitive detection of PCSK9, a signal dual-amplification strategy needs to be applied in further promoting the ECL signal of CTM. First, according to ref , persulfate acting as co-reactant can enhance the ECL response of TCPP. In this work, we chose K 2 S 2 O 8 as a co-reactant.…”

Section: Introductionmentioning

confidence: 99%

Novel Ce(III)-Metal Organic Framework with a Luminescent Property To Fabricate an Electrochemiluminescence Immunosensor

Zhou

Zhang

et al. 2019

ACS Appl. Mater. Interfaces

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We designed a novel luminescent metal–organic framework (MOF) named Ce-TCPP-LMOF (CTM) through a simple one-pot solvothermal method. CTM was synthesized by using the emerging electrochemiluminescent (ECL) material (4,4′,4″,4‴-(porphine-5,10,15,20-tetrayl)tetrakis(benzoic acid) as the organic ligand and Ce(III) as the metal node. We found that CTM not only has the remarkable ability to emit light but also has a uniform “sandwich biscuit” shape and suitable nanoscale size, which are promising for further applications. We also applied CTM to construct a novel ECL immunosensor and achieve sensitive detection of the proprotein convertase subtilisin/kexin type 9 (PCSK9), a biomarker related to cardiovascular diseases. To further amplify the ECL signal of CTM, a novel dual-amplified signal strategy was established by inducing a polyamidoamine dendrimer (PAMAM) and gold nanoparticles (AuNPs). Importantly, we first proved that the ECL signal of the CTM/S2O8 2– system could be enhanced by the PAMAM electric field. As the electron transfer rate was accelerated by the AuNP layer, this ECL signal was further enhanced in AuNP-modified electrodes. The ECL immunosensor showed desirable performance for PCSK9 analysis within a detection range of 50 fg mL–1 to 10 ng mL–1 and a low limit of detection of 19.12 ± 2.69 fg mL–1. Real sample detection suggested that the immunosensor holds great potential for analyzing clinical serum samples.

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Cathodic electrochemiluminescence of meso-tetra(4-carboxyphenyl) porphyrin/potassium peroxydisulfate system in aqueous media

Cited by 35 publications

References 63 publications

Depolymerization-Induced Electrochemiluminescence of Insoluble Porphyrin in Aqueous Phase

Depolymerization-Induced Electrochemiluminescence of Insoluble Porphyrin in Aqueous Phase

Potential-Resolved Multicolor Electrochemiluminescence of N-(4-Aminobutyl)-N-ethylisoluminol/tetra(4-carboxyphenyl)porphyrin/TiO₂ Nanoluminophores

Novel Ce(III)-Metal Organic Framework with a Luminescent Property To Fabricate an Electrochemiluminescence Immunosensor

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Cathodic electrochemiluminescence of meso-tetra(4-carboxyphenyl) porphyrin/potassium peroxydisulfate system in aqueous media

Cited by 35 publications

References 63 publications

Depolymerization-Induced Electrochemiluminescence of Insoluble Porphyrin in Aqueous Phase

Depolymerization-Induced Electrochemiluminescence of Insoluble Porphyrin in Aqueous Phase

Potential-Resolved Multicolor Electrochemiluminescence of N-(4-Aminobutyl)-N-ethylisoluminol/tetra(4-carboxyphenyl)porphyrin/TiO2 Nanoluminophores

Novel Ce(III)-Metal Organic Framework with a Luminescent Property To Fabricate an Electrochemiluminescence Immunosensor

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Potential-Resolved Multicolor Electrochemiluminescence of N-(4-Aminobutyl)-N-ethylisoluminol/tetra(4-carboxyphenyl)porphyrin/TiO₂ Nanoluminophores