A Turn-on Biosensor-Based Aptamer-Mediated Carbon Quantum Dots Nanoaggregate for Acetamiprid Detection in Complex Samples

Jiao, Zhe; Zhang, Hongfeng; Jiao, Shaohe; Guo, Zongning; Zhu, Dongmei; Zhao, Xiaofang

doi:10.1007/s12161-018-1393-9

Cited by 42 publications

(19 citation statements)

References 33 publications

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“…For example, the strongest emission bands of C dots prepared from l ‐glutamic acid and o ‐phenylenediamine in four different solutions, including formamide, ethanol, N , N ‐dimethylformamide, and H 2 SO 4 , center at the wavelengths of 443, 571, 594, and 745 nm, respectively . Since the important role of condensation between glycine molecules on determining the formation of highly hydrophilic C dots was suggested,12a many organic compounds have been used for the preparation of C dots 8e,10,15d. C dots can be prepared from a single carbon precursor like glycine or two different carbon precursors such as citric acid and ethylenediamine.…”

Section: Preparation Of C Dotsmentioning

confidence: 99%

“…Heteroatom doping is an effective approach to improve the optical properties of C dots by tuning their carbon skeleton matrices, chemical structures, and energy gap . Common elements, including nitrogen, sulfur, oxygen, boron, phosphorus, silicon, and halogens, have been integrated into C dots to tune their emission wavelength and to enhance their QYs 8d,10,51. Codoping of two or more elements to C dots to modulate their optical properties has also been demonstrated 10,51a,52…”

Section: Fluorescence Of C Dotsmentioning

confidence: 99%

“…To improve selectivity toward analytes, nanocomposites of C dots with different materials have been prepared 8a,101. A sensing system using molecularly imprinted polymer (MIP) as a receptor and green emitting C dots as signal transducers was applied for quantitation of 3‐nitrotyrosine (3‐NT) based on analyte induced quenching, with LOD of 17 × 10 −9 m , as shown in Figure a 101a.…”

Section: Sensing and Imaging Applicationsmentioning

confidence: 99%

“…Most C dots are well dispersible in water due to rich hydrophilic groups on their surfaces. Their surface residues such as carboxylate and amino groups also make it easier for functionalization of C dots through derivatization with recognition elements like antibodies and aptamers, enhancing their potential in various fields like sensing . C dots are brighter and more stable in comparison with metal fluorescent nanomaterials like gold nanodots .…”

Section: Introductionmentioning

confidence: 99%

“…They can be prepared from various precursors such as organic compounds, plants, organic wastes, and biopolymers through different approaches 4b,5b,14. Hydrothermal route, microwave‐assisted synthesis, and electrochemical preparation are common and inexpensive approaches for the preparation of C dots 8c,15. The optical properties and hydrophilicity of C dots are highly related to the nature of precursors and reaction conditions such as temperature and time .…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances and Sensing Applications of Carbon Dots

2019

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Carbon dots (C dots) with biocompatibility, brightness, stability against photoirradiation and salt, and ease in preparation have become important materials for sensing and imaging. They can be prepared from natural materials and small organic molecules through hydrothermal, microwave‐assistant, and electrochemical methods, with advantages of simplicity and low cost. To enhance the quantum yields of C dots in the red and near‐infrared regions, doping of C dots with heteroatoms such as nitrogen and sulfur has been suggested. C dots both with and without being functionalized recognition elements such as antibodies and aptamers are selective and sensitive for sensing of analytes, including metal ions (e.g., Fe3+, Hg2+, Cu2+), small molecules (e.g., H2O2, cysteine, glutathione), and biopolymers like proteins, as well as for in vitro and in vivo imaging. Depending on the size, charge, and surface ligands of C dots used to label cells, fluorescence images of different organelles are shown. Multicolor images of bacteria, mammalian cells, and plant tissues incubated with C dots are realized when excited at different wavelengths. In this review, many excellent sensing and imaging examples of C dots are presented to highlight their features and to show their challenges for analytical applications.

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Section: Preparation Of C Dotsmentioning

confidence: 99%

Section: Fluorescence Of C Dotsmentioning

confidence: 99%

Section: Sensing and Imaging Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recent Advances and Sensing Applications of Carbon Dots

2019

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Arginine‐derived carbon nanoparticles for determination of Cr(VI) in water samples

Yahyazadeh

Shemirani

2020

Luminescence

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Hexavalent chromium, Cr(VI), is a toxic and carcinogenic ion that poses significant risks toward human health and the environment. Due to its extensive industrial use and high water solubility, Cr(VI) can easily contaminate drinking water sources. Therefore, it is essential to develop methods to detect Cr(VI) in water samples. Recently, carbon quantum dots – being biocompatible, easy to synthesize, and cost‐effective fluorophores – have been successfully applied for the determination of different heavy metal ions. In this study, arginine‐derived carbon nanoparticles were synthesized using a solvent‐free one‐pot thermal method. These carbon nanoparticles were characterized using transmission electron microscopy, dynamic light scattering analysis, infrared spectroscopy, ultraviolet–visible (UV–vis) light spectroscopy, fluorescence spectroscopy, and CHNO elemental analysis before being used to design a sensor for Cr(VI). The sensor's signal was optimized and the arginine‐derived carbon nanoparticle‐based Cr(VI) determination method was shown to have a limit of detection of 18 nM, a limit of quantification of 60 nM, and a linear response range of 0.06–100 μM. The sensor's selectivity toward Cr(VI) was studied and a potential interfering ion was identified and dealt with. Finally, the sensor was successfully applied for the determination of Cr(VI) in tap water and mineral water samples.

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DNA‐Mediated Assembly of Carbon Nanomaterials

et al. 2022

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Carbon nanomaterials (CNMs) have attracted extensive attentions on account of their superior electrical, mechanical, optical, and biological properties. However, the dimensional limit and irregular arrangement have hampered their further application. It is necessary to find an easy, efficient and controllable way to assemble CNMs into well‐ordered array. DNA nanotechnology, owning to the advantages of precise programmability, highly structural predictability and spatial addressability, has been widely applied in the assembly of CNMs. Summarizing the progress and achievements in this field will be of great value to related studies. Herein, based on the different dimensions of CNMs containing 0‐dimensional (0D) carbon dots (CDs), fullerenes, 1‐dimensional (1D) carbon nanotubes (CNTs) and 2‐dimensional (2D) graphene, we introduced the conjugation strategies between DNA and CNMs, their different assembly methods and their applications. In addition, we also discuss the existing challenges and future opportunities in the field.

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A Turn-on Biosensor-Based Aptamer-Mediated Carbon Quantum Dots Nanoaggregate for Acetamiprid Detection in Complex Samples

Cited by 42 publications

References 33 publications

Recent Advances and Sensing Applications of Carbon Dots

Recent Advances and Sensing Applications of Carbon Dots

Arginine‐derived carbon nanoparticles for determination of Cr(VI) in water samples

DNA‐Mediated Assembly of Carbon Nanomaterials

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