A novel chiral fluorescence probe based on carbon dots-copper(II) system for ratio fluorescence detection of gatifloxacin

Chen, Anli; Li, Renjie; Zhong, Yujia; Deng, Qunfen; Yin, Xinghang; Li, Haoyi; Kong, Lingqian; Yang, Rui

doi:10.1016/j.snb.2022.131602

Cited by 27 publications

(14 citation statements)

References 52 publications

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“…Their stability in KCl solution was first measured, as shown in Figure 4a. When the concentration of KCl varies between 0 M and 2 M, the fluorescence intensity of the three CDs does not fluctuate too much, indicating that the KCl solution has little influence on the carbon quantum dot, indicating CDs has good salt resistance [20] . It is helpful to show that CDs are highly stable in KCl solutions, since CDs are usually used at different salt concentrations in practical applications.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen‐Doped Bifunctional Carbon Dots: Photoluminescence Investigation, and Fluorescent Recognition Applications

Zhang,

Fu,

Cao

et al. 2024

ChemistrySelect

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In this work, three kinds of bifunctional carbon dots fluorescent sensor a‐CDs, b‐CDs and c‐CDs were prepared using 2,2‐di(prop‐2‐yn‐1‐yl)malonic acid as substrate, which are rich in carboxylic acid and conjugated structure. The morphology, chemical composition and optical properties of the prepared carbon quantum dots were characterized by transmission electron microscopy (TEM), X‐ray Photoelectron spectroscopy (XPS), FTIR, X‐ray diffraction (XRD), UV‐vis spectroscopy and fluorescence (FL). They display excellent water solubility, thermal stability and salt resistance, and overcomes the loss of optical activity in the dry state, which have been applied to the detection of aqueous metal ions and anions. Among them, the fluorescence quenching of Hg2+ and Cu2+ by a‐CDs and b‐CDs is obvious, which can be used as a highly sensitive dual ion sensor. At the same time, it has a good recognition and detection effect on 0–12 ppm ClO− or MnO4−, and the detection limits are as low as 0.1209 ppm and 0.0574 ppm, respectively. In addition, chiral c‐CDs can specifically recognize Hg2+, and the synergistic effect of c‐CDs and Hg2+ can improve the recognition of chiral enantiomers.

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Section: Resultsmentioning

confidence: 99%

Nitrogen‐Doped Bifunctional Carbon Dots: Photoluminescence Investigation, and Fluorescent Recognition Applications

Zhang,

Fu,

Cao

et al. 2024

ChemistrySelect

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“…The HOMO electron levels of molecules can interact with plasmons in metal NPs [263,264] and excitons in semiconductor QDs, [26,[265][266][267] and carbon dots [268] leading to coupling and splitting of energy levels and the appearance of a CD signal in the region of these transitions. If the molecule has multiple anchor groups, the binding mode to the NP surface determines the spatial configurations of the molecules, which affects both the chiral properties of the NPs and the molecules themselves, as well as their electronic interaction.…”

Section: Chiral Shape Of Individual Npsmentioning

confidence: 99%

Expanding the Horizons of Machine Learning in Nanomaterials to Chiral Nanostructures

Kuznetsova,

Coogan,

Botov

et al. 2024

Advanced Materials

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Machine learning holds significant research potential in the field of nanotechnology, enabling nanomaterial structure and property predictions, facilitating the design of novel materials, and reducing the need for time‐consuming and labour‐intensive experiments and simulations. In contrast to their achiral counterparts, the application of machine learning for chiral nanomaterials and nanostructures is still in its infancy, with a limited number of publications to date. This is despite the great potential of machine learning to advance the development of new sustainable chiral materials with high values of optical activity, circularly polarised luminescence, and enantioselectivity, as well as for the analysis of structural chirality by electron microscopy. In this review, we provide an analysis of machine learning methods used in studying achiral nanomaterials, subsequently offering guidance on adapting and extending this work to chiral nanomaterials. We present an overview of chiral nanomaterials within the framework of synthesis‐structure‐property‐application relationships and provide insights on how to leverage machine learning for the study of these highly complex relationships. We also review and discuss some key recent publications on the application of machine learning for chiral nanomaterials. Finally, the review captures the key achievements, ongoing challenges, and the prospective outlook for this very important research field.This article is protected by copyright. All rights reserved

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Section: Application Of Ch-cds In Biomedical Engineeringmentioning

confidence: 99%

“…By adding various ingredients, one can instantly create a noticeable color change. Chen et al 85 prepared chiral fluorescent probes L-or D-Glu-CDs@Cu 2+ by assembling L-or D-Glu-CDs and Cu 2+ . This chiral fluorescent probe produces a FRET burst mechanism 86 with gatifloxacin (GAT) to achieve rapid recognition (as shown in Figure 3A) and has better resistance to interference from GAT analogs such as pefloxacin (PEF), norfloxacin (NOR), ciprofloxacin (CIP), and lomefloxacin (LOM).…”

Section: Detection Of Moleculesmentioning

confidence: 99%

Recent Progress on Chiral Carbon Dots: Synthetic Strategies and Biomedical Applications

Chen,

Yu,

et al. 2023

ACS Biomater. Sci. Eng.

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The discovery of chiral carbon dots (Ch-CDs) has opened up an exciting new research direction in the field of carbon dots. It not only retains the chirality of the precursor and exhibits highly symmetric chiral optical properties but also has properties such as chemical stability, antibacterial and antitumor properties, and good biocompatibility of carbon dots. Based on these advantages, the application of Ch-CDs in the biomedical field has attracted significant interest among researchers. However, a comprehensive review of the selection of precursors for Ch-CDs, preparation methods, and applications in biomedical fields is still lacking. Here, we summarize their precursor selection and preparation methods based on recent reports on Ch-CDs and provide the first comprehensive review for specific applications in biomedical engineering, such as biosensing, bioimaging, drug carriers, antibacterial and antibiofilm, and enzyme activity modulation. Finally, we discuss application prospects and challenges that need to be overcome. We hope this review will provide valuable guidance for researchers to prepare novel Ch-CDs and facilitate their application in biomedical engineering.

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A novel chiral fluorescence probe based on carbon dots-copper(II) system for ratio fluorescence detection of gatifloxacin

Cited by 27 publications

References 52 publications

Nitrogen‐Doped Bifunctional Carbon Dots: Photoluminescence Investigation, and Fluorescent Recognition Applications

Nitrogen‐Doped Bifunctional Carbon Dots: Photoluminescence Investigation, and Fluorescent Recognition Applications

Expanding the Horizons of Machine Learning in Nanomaterials to Chiral Nanostructures

Recent Progress on Chiral Carbon Dots: Synthetic Strategies and Biomedical Applications

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