Synthesis of bimetallic covalent organic framework nanocomposite for enhanced electrochemical detection of gallic acid

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

doi:10.1016/j.colsurfa.2022.129748

Cited by 13 publications

(2 citation statements)

References 54 publications

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“…Studies that used CV to identify GA have been performed. For example, Zha et al (2022) [ 38 ] used CV to detect GA using a bimetallic organic framework, demonstrating that CV is a technique that is able to estimate the real concentration of GA in a sample. In addition to this, CV is a powerful technique that enables the establishment of conditions for the delivery of antioxidant compounds.…”

Section: Resultsmentioning

confidence: 99%

Microencapsulation of Gallic Acid Based on a Polymeric and pH-Sensitive Matrix of Pectin/Alginate

et al. 2023

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The encapsulation of gallic acid (GA) through several methods has enhanced its shelf life and facilitated industrial applications. Polymeric matrices made of alginate and pectin were evaluated to encapsulate GA via spray drying. The pH-responsive release mechanism was monitored to validate the matrices’ performances as wall materials and extend the bioactive compound stability. The microcapsules produced were characterized via scanning electron microscopy (SEM), dynamic light scattering (DLS), Fourier-transform infrared spectroscopy (FTIR), and cyclic voltammetry (CV). The retention and encapsulation efficiency ranges were 45–82% and 79–90%, respectively. The higher values were reached at 3 and 0.75% (w/v) pectin and sodium alginate, respectively. The scanning electron microscopy showed smooth spherical capsules and the average particle size ranged from 1327 to 1591 nm. Their performance and stability were evaluated with optimal results at a pH value of 7 throughout the investigation period. Therefore, this work demonstrated the suitability of gallic acid encapsulation via spray drying using pectin and alginate, which are biopolymers that can be obtained from circular economy processes starting from agro-industrial biomass. The developed formulations provide an alternative to protecting and controlling the release of GA, promoting its application in the food, pharmaceutical, and cosmetic industries and allowing for the release of compounds with high bioactive potential.

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Section: Resultsmentioning

confidence: 99%

Microencapsulation of Gallic Acid Based on a Polymeric and pH-Sensitive Matrix of Pectin/Alginate

et al. 2023

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“…FeNi@TAPB-DMTP-COF showed an excellent electrochemical oxidation response toward gallic acid due to the synergistic effects of high catalytic activity of FeNi NPs and large surface area of TAPB-DMTP-COF. The FeNi@TAPB-DMTP-COF/GCE based sensor showed an LOD of 1.3 nmol mL –1 and two linear response ranges of 0.005–7.0 μmol L –1 and 7.0–400 μmol L –1 , respectively.…”

Section: Detection Of Natural Drug Moleculesmentioning

confidence: 99%

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

et al. 2023

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As an emerging porous crystalline organic material, the covalent organic frameworks (COFs) are given more and more attention in many fields, such as gas storage and separation, catalysis, energy storage and conversion, luminescent devices, drug delivery, pollutant adsorption and removal, analysis and detection due to their special advantages of high crystallinity, flexible designability, controllable porosities and topologies, intrinsic chemical and thermal stability. In recent years, the COFs are applied in analytical chemistry, for instance, chromatography, solid-phase microextraction, luminescent and colorimetric sensing, surface-enhanced Raman scattering and electroanalytical chemistry. The COFs decorated electrodes show high performance for detecting trace substances with remarkable selectivity and sensitivity, such as heavy metal ions, glucose, hydrogen peroxide, drugs, antibiotics, explosives, phenolic compounds, pesticides, disease metabolites and so on. This review mainly summarized the application of COF based electrochemical sensor according to different target analytes.

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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 bimetallic covalent organic framework nanocomposite for enhanced electrochemical detection of gallic acid

Cited by 13 publications

References 54 publications

Microencapsulation of Gallic Acid Based on a Polymeric and pH-Sensitive Matrix of Pectin/Alginate

Microencapsulation of Gallic Acid Based on a Polymeric and pH-Sensitive Matrix of Pectin/Alginate

Recent Progress of Covalent Organic Frameworks Applied in Electrochemical Sensors

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

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