Surface-imprinted β-cyclodextrin-functionalized carbon nitride nanosheets for fluorometric determination of sterigmatocystin

Shi, Jianrong; Li, Geyuan; Cui, Yanru; Zhang, Yan; Liu, Donghao; Shi, Yi; He, Hua

doi:10.1007/s00604-019-3867-x

Cited by 17 publications

(7 citation statements)

References 34 publications

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“…Shi et al. [ 84 ] explored a fluorescence measurement method based on fabricating MIP on the β‐CD functionalized CNNS for identifying toxic pollutant sterigmatocystin (STG). Inclusion of template molecules by β‐CD leads to changes in the microenvironment around the fluorophore, causing the conversion of optical signals.…”

Section: Other Molecularly Imprinted Polymers Based On Cyclodextrinmentioning

confidence: 99%

Recent Advances of Molecularly Imprinted Polymers Based on Cyclodextrin

Zhao

Wang

Zhang

et al. 2021

Macromol. Rapid Commun.

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Molecular imprinting polymers (MIPs), generally considered as artificial mimics that are comparable to natural receptor, are polymers with tailor‐made specific recognition sites complementary to the template molecules in shape and size. As a class of supramolecular compounds, cyclodextrins (CDs) are flourishing in the field of molecular imprinting with their unique structural properties. This review presents recent advances in application of MIPs based on CDs during the past five years. The discussion is grouped according to the different role of CDs in MIPs, that is, functional monomer, carrier modifier, etc. Main focus is the application of CD‐based MIP on sample preparation, detection, and sensing. Additionally, drug delivery with CD‐based MIP is also briefly discussed. Finally, challenges and future prospects of application of CDs in MIP are elaborated.

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Section: Other Molecularly Imprinted Polymers Based On Cyclodextrinmentioning

confidence: 99%

Recent Advances of Molecularly Imprinted Polymers Based on Cyclodextrin

Zhao

Wang

Zhang

et al. 2021

Macromol. Rapid Commun.

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“…The preparation of the polymers is of primary importance to it. In the previous research, our team successfully prepared a variety of MIPs for the analysis of mycotoxins in wheat, antibiotics in sewage and other challenges [84][85][86]. Recently, our work has focused on the potential usage of MIPs for the enrichment of active ingredients in medic-inal herbs and natural products.…”

Section: Molecularly-imprinted Polymer Extractionmentioning

confidence: 99%

Comparison of different extraction methods of active ingredients of Chinese medicine and natural products

Li,

Chen

2024

J of Separation Science

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Like other traditional medicine in the world, Chinese traditional medicine (CTM) has a long history, which is a treasure of the combination of medicine and Chinese classical culture even more than 5000 years. For thousands of years, CTM has made great contributions to the reproduction and health of the Chinese people. It was an efficient therapeutic tool under the guidance of Chinese traditional medical theory, its source is generally natural products, but there are also a small number of it are natural products after some processing methods. In fact, the definition of Chinese medicine (CM) includes both traditional and new CM developed by modern technology. It is well known that the chemical composition of most CM and natural products is very complex, for example, a single herb may contain hundreds of different chemicals, including active ingredients, side effects, and even toxic ingredients. Therefore, the extraction process is particularly crucial for the quality and clinical efficacy of CM and natural products. In this work, a new classification method was proposed to divide the extraction technologies of CM and natural products into 21 kinds in recent years and analyze their status, advantages, and disadvantages. Then put forward a new technical route based on ultra‐high‐pressure extraction technology for rapid extraction else while removing harmful impurities and making higher utilization of CM and natural products. It is a useful exploration for the extraction industry of medicinal materials and natural products in the world.

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“…This in turn overcomes the limitation of conventional molecular imprinting technique such as difficulty in template elution, poor water solubility, and slow mass transfer rate. In light of this strategy, Shi et al [ 90 ] developed a fluorometric probe for detection of sterigmatocystin (SMC) by MIP-coated-β-cyclodextrin functionalized graphitic carbon nitride nanosheets (MIP@βCD/CNNS) and reported high fluorescence quantum yield (13%), high SMC adsorption capacity (86 mg/g), faster adsorption rate (25 min) and good adsorption selectivity in the presence of biotoxins, amino acids, vitamins, starches, and metal ions in wheat. Based on the FRET principle, the SMC was detected through quenching of the blue fluorescence of MIP@βCD/CNNS (excitation/emission wavelength at 368/432 nm) by MIP@βCD/CNNS with the LOD at 24 ng/mL in the linear range of 48.65–1005.3 ng/mL.…”

Section: Miscellaneous Carbon Nanomaterial-based Sensorsmentioning

confidence: 99%

Recent trends in analysis of mycotoxins in food using carbon-based nanomaterials

Chen¹,

Inbaraj²

2022

Journal of Food and Drug Analysis

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Mycotoxins (MYTs), a class of low molecular weight secondary metabolites produced by filamentous fungi in food and feed, pose serious global threat to both human health and world economy. Due to their mutagenic, teratogenic, carcinogenic and immunosuppressive effects, the International Agency for Research on Cancer has classified various MYTs under Group 1 to 3 category with aflatoxins being designated under Group 1 category (carcinogenic to humans). Also, the presence of MYTs in trace amounts in diverse food matrices necessitates exploration of highly sensitive methods for onsite analysis. Although conventional chromatographic methods are highly sensitive, they are expensive, tedious and cannot be applied for rapid onsite analysis. In recent years the application of nanomaterials especially carbon-based nanomaterials (CNMs) in the fabrication of low-cost and miniaturized electrochemical and optical sensors has enabled rapid onsite analysis of MYTs with high sensitivity and specificity. Moreover, the CNMs are employed as effective solid phase extraction (SPE) adsorbents possessing high specific surface area for effective enrichment of MYTs to improve the sensitivity of chromatographic methods for MYT analysis in food. This article aims to overview the recent trends in the application of CNMs as SPE adsorbents for sample pretreatment in chromatographic methods as well as in the fabrication of highly sensitive electrochemical and optical sensors for rapid analysis of MYTs in food. Initially, the efficiency of various functionalized CNMs developed recently as adsorbent in packed SPE cartridges and dispersive SPE adsorbent/purification powder is discussed. Then, their application in the development of various electrochemical immunosensors involving functionalized carbon nanotubes/nanofibers, graphene oxide, reduced graphene oxide and graphene quantum dots is summarized. In addition, the recent trends in the use of CNMs for fabrication of electrochemical and fluorescence aptasensors as well as some other colorimetry, fluorometry, surface-enhanced Raman spectroscopy and electrochemical based sensors are compared and tabulated. Collectively, this review article can provide a research update on analysis of MYTs by carbon-based nanomaterials paving a way for identifying future perspectives.

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Surface-imprinted β-cyclodextrin-functionalized carbon nitride nanosheets for fluorometric determination of sterigmatocystin

Cited by 17 publications

References 34 publications

Recent Advances of Molecularly Imprinted Polymers Based on Cyclodextrin

Recent Advances of Molecularly Imprinted Polymers Based on Cyclodextrin

Comparison of different extraction methods of active ingredients of Chinese medicine and natural products

Recent trends in analysis of mycotoxins in food using carbon-based nanomaterials

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