Colorimetric determination of copper ions based on regulation of the enzyme-mimicking activity of covalent triazine frameworks

Xiong, Yuhao; Su, Linjing; He, Xinbo; Duan, Zhenhua; Zhang, Zhi; Chen, Zhenlin; Xie, Wei; Zhu, Dandan; Luo, Yanghe

doi:10.1016/j.snb.2017.06.167

Cited by 40 publications

(19 citation statements)

References 31 publications

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“…In another approach, CTF‐1 also served to detect species that accelerated the oxidation reaction of organic species. Copper ions enhanced the catalytic oxidation of 3,3′,5,5′‐tetramethylbenzidine by CTF‐1, producing a blue solution [109] . The increase in absorbance values was directly related with Cu II concentration and was used for its quantification even in real samples.…”

Section: Microwave‐assisted Synthesis Of 2d Cofsmentioning

confidence: 99%

“…Copper ions enhanced the catalytic oxidation of 3,3',5,5'-tetramethylbenzidine by CTF-1, producing a blue solution. [109] The increase in absorbance values was directly related with Cu II concentration and was used for its quantification even in real samples. Apart from this application, the authors further reported in the same paper an improved synthetic method, in which CTF-1 was prepared in only 6 min when the microwave power output was increased to 700 W.…”

Section: Triazine-based Cofsmentioning

confidence: 99%

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Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

et al. 2020

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Covalent organic frameworks (COFs) are relatively recent materials. They have received great attention due to their interesting properties. However, the application of microwaves in their synthesis, despite its advantages such as faster and more reproducible processes, is a minority. Herein, a comprehensive compilation of the research results published in the microwave‐assisted synthesis (MAS) of COFs is presented. This review includes articles of 2D and 3D COFs prepared using microwaves as source of energy. The articles have been classified depending on the functional groups including boronate ester, imines, enamines, azines, and triazines, among others. It compiles the main parameters of synthesis and characteristics of the materials together with some general issues related with COFs and microwaves. Additionally, current and future perspectives of the topic have been discussed.

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Section: Microwave‐assisted Synthesis Of 2d Cofsmentioning

confidence: 99%

Section: Triazine-based Cofsmentioning

confidence: 99%

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

et al. 2020

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“…Finally, they successfully applied the His@AuNCs/RGO‐GCE electrochemical sensor to detect nitrite in sausage samples. In addition, nanozyme sensing strategies are available for monitoring other ions as well, such as Ag + (Abdolmohammad‐Zadeh & Rahimpour, ) and Cu 2+ ions (Xiong et al., ), in drinking water samples, and Ca 2+ ions in milk samples (Mu, Zhang, Zhao, & Wang, ).…”

Section: Applications In Food Quality and Safety Detectionmentioning

confidence: 99%

Development of Nanozymes for Food Quality and Safety Detection: Principles and Recent Applications

Huang

Sun

et al. 2019

Comp Rev Food Sci Food Safe

131

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The public concerns about agrifood safety call for innovative and reformative analytical techniques to meet the inspection requirements of high sensitivity, specificity, and reproducibility. Enzyme‐mimetic nanomaterials or nanozymes, which combine enzyme‐like properties with nanoscale features, emerge as an excellent tool for quality and safety detection in the agrifood sector, due to not only their robust capacity in detection but also their attraction in future‐oriented exploitations. However, in‐depth understanding about the fundamental principles of nanozymes for food quality and safety detection remains limited, which makes their applications largely empirical. This review provides a comprehensive overview of the principles, designs, and applications of nanozyme‐based detection technique in the agrifood industry. The discussion mainly involves three mimicking types, that is, peroxidase, oxidase, and catalase‐like nanozymes, capable of detecting major agrifood analytes. The current principles and strategies are classified and then discussed in details through discriminating the roles of nanozymes in diverse detection platforms. Thereafter, recent applications of nanozymes in detecting various endogenous ingredients and exogenous contaminants in foods are reviewed, and the outlook of profound developments are explained. Evidenced by the increasing publications, nanozyme‐based detection techniques are narrowing the gap to practical‐oriented food analytical methods, while some challenges in optimization of nanozymes, diversification of recognition‐to‐signal manners, and sustainability of methodology need to conquer in the future.

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“…To overcome these challenges, various alternative methods have been tried for the detection of Hg 2 + such as colorimetric, [12][13][14] fluorescence [15][16][17][18] and electrochemical . [19] Among all, colorimetric method is the most suitable method for the detection of Hg 2 + ion in aqueous solution, because it is most economical, simple, [20][21] portability, and quick colour change, [22][23] which can be easily observed by naked eye. [24][25] Recently, the unique properties of nanocomposites were focused by various scientific fields such as biotechnology, biomedical material [26] and environmental science.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Peroxidase Mimetic Activity of Magnetic Porous Carbon (MPC) Utilized in Colorimetric Sensing of Hg (II) Ions in Aqueous Medium

Christus

Panneerselvam

2020

ChemistrySelect

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A new sensitive colorimetric sensor was designed to investigate the presence of Hg2+ in aqueous solution by using Fe3O4 NP impregnated on carbon nanocomposite(MPC) synthesized from MIL88 A which possess an excellent peroxidase mimicking activity that brings oxidation of 3, 3’, 5, 5’‐ tetramethylbenzidine (TMB) under the influence of hydrogen peroxide (H2O2) to produce blue colour in the solution. The solution was decolorized by the addition of Glutathione (GSH) which restores the TMB radical cations and ceased the oxidation reaction. Addition ofHg2+ ions to the solution bring back a strong blue colour due to the strong affinity of Hg 2+ with the thiol groups of GSH which promote the oxidation of TMB in the solution. Based on these strategies, we have developed a sensitive andselective colorimetric sensor for the determination of Hg (II) in aqueous solution with the detection limit value of 236 pM and a linear relationship of R2=0.994. The proposed mechanism was successfully implemented for the detection of mercury in real water samples for environmental applications.

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Colorimetric determination of copper ions based on regulation of the enzyme-mimicking activity of covalent triazine frameworks

Cited by 40 publications

References 31 publications

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

Development of Nanozymes for Food Quality and Safety Detection: Principles and Recent Applications

Enhanced Peroxidase Mimetic Activity of Magnetic Porous Carbon (MPC) Utilized in Colorimetric Sensing of Hg (II) Ions in Aqueous Medium

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