Synthesis of core-shell structured metal oxide@covalent organic framework composites as a novel electrochemical platform for dopamine sensing

Chu, Huacong; Sun, Xin; Zha, Xiaoqian; Ya, Zhang; Wang, Yan

doi:10.1016/j.colsurfa.2022.129238

Cited by 14 publications

(6 citation statements)

References 42 publications

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“…The current densities were fitted to the linear model ( Figure 4 c), and the analytical parameters (linear range, slope or sensitivity, correlation coefficient, LOD, and LOQ) were estimated and are shown in Table 2 . All obtained parameters were similar to other materials commonly used for dopamine detection [ 17 , 18 , 19 ].…”

Section: Resultsmentioning

confidence: 67%

“…The linear range obtained for DOP was 0.05–5.0 μmol L −1 with a LOD of 0.04 μmol L −1 . To improve the performance during the DOP detection (still using the GCE), a combination of a metal oxide with a covalent organic framework was proposed by Chu et al [ 19 ]. The authors prepared a core-shell structured composite by encapsulating CuO into the TAPB-DMTP-COF host matrix.…”

Section: Introductionmentioning

confidence: 99%

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Visible Light Photoelectrochemical Sensor for Dopamine: Determination Using Iron Vanadate Modified Electrode

et al. 2022

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This study reports a facile approach for constructing low-cost and remarkable electroactivity iron vanadate (Fe-V-O) semiconductor material to be used as a photoelectrochemical sensor for dopamine detection. The structure and morphology of the iron vanadate obtained by the Successive Ionic Adsorption and Reaction process were critically characterized, and the photoelectrochemical characterization showed a high photoelectroactivity of the photoanode in visible light irradiation. Under best conditions, dopamine was detected by chronoamperometry at +0.35 V vs. Ag/AgCl, achieving two linear response ranges (between 1.21 and 30.32 μmol L−1, and between 30.32 and 72.77 μmol L−1). The limits of detection and quantification were 0.34 and 1.12 μmol L−1, respectively. Besides, the accuracy of the proposed electrode was assessed by determining dopamine in artificial cerebrospinal fluid, obtaining recovery values ranging from 98.7 to 102.4%. The selectivity was also evaluated by dopamine detection against several interferent species, demonstrating good precision and promising application for the proposed method. Furthermore, DFT-based electronic structure calculations were also conducted to help the interpretation. The dominant dopamine species were determined according to the experimental conditions, and their interaction with the iron vanadate photoanode was proposed. The improved light-induced DOP detection was likewise evaluated regarding the charge transfer process.

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Section: Resultsmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Visible Light Photoelectrochemical Sensor for Dopamine: Determination Using Iron Vanadate Modified Electrode

et al. 2022

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Section: Synthesis Methods Of Cof-based Core-shell Compositesmentioning

confidence: 99%

Covalent–Organic Framework (COF)‐Core–Shell Composites: Classification, Synthesis, Properties, and Applications

Li,

Pan,

Shao

et al. 2023

Adv Funct Materials

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Core–shell structures, where the “guest” material is encapsulated within a protective shell, integrate the advantages of different materials to enhance the overall properties of the composite. Covalent–organic frameworks (COFs) are favorable candidates for composing core–shell structures due to their inherent porosity, good activity, excellent stability, and other advantages. In particular, COFs as shells to encapsulate other functional materials are becoming increasingly popular in the fields of environmental remediation and energy conversion. However, there is a lack of reviews on COF‐based core–shell materials. In this context, this review provides a systematic summary of the current research on COF‐based core–shell composites. First, a simple classification is made for COF‐based core–shell composites. The second part of the review describes the main synthesis methods. The changes brought about by the COF shell and core–shell structures on the properties of the composites and their applications in photocatalysis, electrocatalysis, adsorption, sensing, and supercapacitors are then emphasized. Finally, new perspectives on the future development and challenges of composites are presented. The purpose of this study is to provide future insights into the design and application of COF‐based core–shell composites.

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“…In food science, antibiotics abuse has become a focus of people's attention and various COFs-based electrochemical biosensors have been employed to detect antibiotics residues such as ENR, [299] CFX, [89,236] sulfadiazine (SDZ), [177] SMR [179] ], CGA, [100] AMP [88,9] ], kanamycin (Kana), [238] TOB, [120,230] CAP, [192,235] OTC, [87] TC, [131] furazolidone (FA) [74] and so on in meat, fruit, vegetable and beverage. In addition, pesticide residues, [277,301] toxin, [162,241] hormone, [115] environmental hormones, [302] and other biological small molecules such as DA [186] and AA [217] in food samples also have been detected using COFs-based electrochemical sensing methods. Because of excellent natures of COFs, these biosensors all showed good analytical performances including high sensitivity, good selectivity, wide linear ranges, good reproducibility and high stability, implying great application potential (Table 2).…”

Section: Food Analysismentioning

confidence: 99%

“…Besides, when poly(3,4-ethylenedioxythiophene) (PEDOT) is introduced into the spacious pores of a ketoenamine-based 2D AQ-COF by Tp and DAAQ, the conductivity of the composite PEDOT@AQCOF is improved to 1.1 S cm À 1 . [184] In addition, as typical semiconducting materials, metal oxides such as Fe 3 O 4 , [124,185] CuO, [186] ZnO, [187] La 2 O 3 [188] and MnO 2 , [189] sulphides such as MoS 2 [179,190] and NiCo 2 S 4 , [191] and MOFs [91,[192][193][194] are also incorporated into COFs for improved conductivity. They not only increase the electric conductivity in some extent but also provide more specific adsorption and catalytic sites to the target molecules for improved enrichment and electrocatalytic effects, enhancing analytical selectivity and sensitivity.…”

Section: Composition Of Cofs With Other Conductive Materialsmentioning

confidence: 99%

Functional COFs for Electrochemical Sensing: From Design Principles to Analytical Applications

Wei,

Yang,

Guo

2023

ChemistrySelect

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At present, applications of covalent organic frameworks (COFs), a class of novel crystalline porous materials fabricated by organic structural blocks only containing light elements such as C, H, N, O and B through strong covalent bonds, in electrochemical sensing have entered a period of rapid development and showed great potential in various analytical fields such as environmental analysis, food analysis, pharmaceutical analysis, biological and clinical analysis owing to their unique advantages including regular porosity, large specific surface area, periodical ordered structure, extended π‐conjugated system, abundant functional groups and outstanding thermal and chemical stability. But there are still many concerns that need to be urgently solved for further electrochemical sensing application including improvement of electric conductivity and enhancement of selectivity. Limited by poor conductivity and low recognition ability of primitive COFs, they always need to be further functionalized. To further promote the development of COFs‐based electrochemical sensing technology, here, we summarize and review the recent advances on construction of two‐dimensional functional COFs materials for electrochemical sensing applications and related sensing device setups in detail, including design strategies, preparation methods, modification considerations, sensing principles and analytical applications, and tentatively propose development prospects and outlooks in future.

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Synthesis of core-shell structured metal oxide@covalent organic framework composites as a novel electrochemical platform for dopamine sensing

Cited by 14 publications

References 42 publications

Visible Light Photoelectrochemical Sensor for Dopamine: Determination Using Iron Vanadate Modified Electrode

Visible Light Photoelectrochemical Sensor for Dopamine: Determination Using Iron Vanadate Modified Electrode

Covalent–Organic Framework (COF)‐Core–Shell Composites: Classification, Synthesis, Properties, and Applications

Functional COFs for Electrochemical Sensing: From Design Principles to Analytical Applications

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