Hydrothermal synthesis of <i>Auricularia auricula</i> derived nitrogen, phosphorus-doped carbon dots and application in Ag(<scp>i</scp>) and 4-nitrophenol detection and bioimaging

Tu, Yujiao; Wang, Suping; Yuan, Xiaotian; Song, Ping; Wei, Yunlin; Qin, Kunhao; Zhang, Qi; Ji, Xiuling

doi:10.1039/d0ay00316f

Cited by 16 publications

(5 citation statements)

References 38 publications

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“…Over the past decades, optical sensors have been developed and utilized for Ag + determination at different levels [9][10][11]. Among them, the fluorescent sensor is regarded as a powerful analytical strategy for Ag + detecting due to its inherent merits, including easy operability, spatiotemporal resolution, and high sensitivity and selectivity [12][13][14][15]. So far, series of fluorescent molecules have been prepared for Ag + analysis based on Ag + -participated chelation or other chemical reactions [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Nanosensors Based on Structural Memory Carbon Nanodots for Ag+ Fluorescence Determination

et al. 2021

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Ag+ pollution is of great harm to the human body and environmental biology. Therefore, there is an urgent need to develop inexpensive and accurate detection methods. Herein, lignin-derived structural memory carbon nanodots (CSM-dots) with outstanding fluorescence properties were fabricated via a green method. The mild preparation process allowed the CSM-dots to remain plentiful phenol, hydroxyl, and methoxy groups, which have a specific interaction with Ag+ through the reduction of silver ions. Further, the sulfur atoms doped on CSM-dots provided more active sites on their surface and the strong interaction with Ag nanoparticles. The CSM-dots can specifically bind Ag+, accompanied by a remarkable fluorescence quenching response. This “turn-off” fluorescence behavior was used for Ag+ determination in a linear range of 5–290 μM with the detection limit as low as 500 nM. Furthermore, findings showed that this sensing nano-platform was successfully used for Ag+ determination in real samples and intracellular imaging, showing great potential in biological and environmental monitoring applications.

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Section: Introductionmentioning

confidence: 99%

Nanosensors Based on Structural Memory Carbon Nanodots for Ag+ Fluorescence Determination

et al. 2021

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“…The bottom-up process consists of a hydrothermal method, a microwave method and an ultrasonic method [ 10 , 11 , 12 ]. Researchers favor the hydrothermal method because of its simple operation, low cost and environmental friendliness [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Fluorescent Carbon Dots and Their Application in Ascorbic Acid Detection

et al. 2021

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Water-soluble fluorescent carbon dots (CDs) were synthesized by a hydrothermal method using citric acid as the carbon source and ethylenediamine as the nitrogen source. The repeated and scale-up synthetic experiments were carried out to explore the feasibility of macroscopic preparation of CDs. The CDs/Fe3+ composite was prepared by the interaction of the CDs solution and Fe3+ solution. The optical properties, pH dependence and stability behavior of CDs or the CDs/Fe3+ composite were studied by ultraviolet spectroscopy and fluorescence spectroscopy. Following the principles of fluorescence quenching after the addition of Fe3+ and then the fluorescence recovery after the addition of asorbic acid, the fluorescence intensity of the carbon dots was measured at λex = 360 nm, λem = 460 nm. The content of ascorbic acid was calculated by quantitative analysis of the changing fluorescence intensity. The CDs/Fe3+ composite was applied to the determination of different active molecules, and it was found that the composite had specific recognition of ascorbic acid and showed an excellent linear relationship in 5.0–350.0 μmol·L−1. Moreover, the detection limit was 3.11 μmol·L−1. Satisfactory results were achieved when the method was applied to the ascorbic acid determination in jujube fruit. The fluorescent carbon dots composites prepared in this study may have broad application prospects in a rapid, sensitive and trace determination of ascorbic acid content during food processing.

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“…On the other hand, Hu and Gao made CDs using wastewater sludge as precursors, and they were selective for 4-NP. Tu et al synthesized CDs using Auricularia auricula as precursors, being selective for 4-NP. In the study by Tu et al, CDs were generated using Ganoderma lucidum (Gl) spore powder-mediated pristine CDs, N-doped, and phosphorus-doped CDs showed selectivity toward 4-NP and DNP.…”

Section: -Nitrophenol Detectionmentioning

confidence: 99%

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

Cardoso Juarez,

Ivan Ocampo Lopez,

Kesarla

et al. 2024

ACS Omega

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This review emphasizes the progress in identifying and eliminating para-nitrophenol (4-NP), a toxic organic compound. It covers various strategical methods and materials, including organic and inorganic nanomaterials, for detecting and reducing 4-NP. Detection techniques such as electrochemical methods. Optical fiber-based surface plasmon resonance and photoluminescence, as well as the mechanisms of Forster Resonance Energy Transfer (FRET) and Inner Filter Effect (IFE) in fluorescence detection, are presented. Removal techniques for this contaminant include homogeneous catalysis, electrocatalysis, photocatalysis, and thermocatalysis, and their reaction mechanisms are also discussed. Further, the theoretical perspectives of 4-NP detection and reduction, parameters influencing the activities, and future perspectives are also reviewed in detail.

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Hydrothermal synthesis of Auricularia auricula derived nitrogen, phosphorus-doped carbon dots and application in Ag(i) and 4-nitrophenol detection and bioimaging

Abstract: Schematic of the synthetic route for fluorescent Aa N,P-CDs and their application in the detection of 4-NP and Ag(i) and bioimaging.

Cited by 16 publications

References 38 publications

Nanosensors Based on Structural Memory Carbon Nanodots for Ag+ Fluorescence Determination

Nanosensors Based on Structural Memory Carbon Nanodots for Ag+ Fluorescence Determination

Synthesis of Fluorescent Carbon Dots and Their Application in Ascorbic Acid Detection

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

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