Electrochemical sensor based on F,N-doped carbon dots decorated laccase for detection of catechol

Liu, Li; Sadat, Anwar; Ding, Haizhen; Xu, Mingsheng; Yin, Qiang; Xiao, Yazhong; Yang, Xingyuan; Yan, Ming; Hong, Bo

doi:10.1016/j.jelechem.2019.03.071

Cited by 83 publications

(34 citation statements)

References 57 publications

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“…The quantum yield values reach 60%, which is considered decent in a neutral water environment. Such high values of QY are among the highest for m PD carbonized products reported to date, 7 , 11 , 13 , 23 − 25 , 29 , 30 , 32 paving its path into integration at photonic and nano-optical probing applications.…”

Section: Resultsmentioning

confidence: 98%

Multicolor Phenylenediamine Carbon Dots for Metal-Ion Detection with Picomolar Sensitivity

Barhum

Alon

Attrash

et al. 2021

ACS Appl. Nano Mater.

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Carbon dots keep attracting attention in multidisciplinary fields, motivating the development of new compounds. Phenylenediamine C 6 H 4 (NH 2 ) 2 dots are known to exhibit colorful emission, which depends on size, composition, and the functional surface groups, forming those structures. While quite a few fabrication protocols have been developed, the quantum yield of phenylenediamine dots still does not exceed 50% owing to undesired fragment formation during carbonization. Here, we demonstrate that an ethylene glycol-based environment allows obtaining multicolor high-quantum-yield phenylenediamine carbon dots. In particular, a kinetic realization of solvothermal synthesis in acidic environments enhances carbonization reaction yield for meta phenylenediamine compounds and leads to quantum yields, exciting 60%. Reaction yield after the product’s purification approaches 90%. Furthermore, proximity of metal ions (Nd 3+ , Co 3+ , La 3+ ) can either enhance or quench the emission, depending on the concentration. Optical monitoring of the solution allows performing an accurate detection of ions at picomolar concentrations. An atomistic model of carbon dots was developed to confirm that the functional surface group positioning within the molecular structure has a major impact on dots’ physicochemical properties. The high performance of new carbon dots paves the way toward their integration in numerous applications, including imaging, sensing, and therapeutics.

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Section: Resultsmentioning

confidence: 98%

Multicolor Phenylenediamine Carbon Dots for Metal-Ion Detection with Picomolar Sensitivity

Barhum

Alon

Attrash

et al. 2021

ACS Appl. Nano Mater.

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“…For the sensor development, F,N-CDs were grown on the surface of GCE, followed by the bioimmobilization of an enzyme called laccase (Lac). The F,N-CDs were characterized by TEM, HRTEM, NMR, FTIR, XPS, photoluminescence, UV-Vis, and Raman spectroscopy; whereas the cyclic voltammograms confirmed the successful formation of Lac/F,N-CDs@GCE [233]. Amperometric studies revealed that this Lac/F,N-CDs@GCE based enzymatic sensor could display much relatively lower LOD (i.e., 14 nM) than the conventional bioassay techniques for catechol determination.…”

Section: Applications Of Cds In Electrochemical Sensorsmentioning

confidence: 92%

“…Using CV and DPV, this MIP/chitosan-CDs@GCE modified sensor could detect glucose over a wide concentration range from 0.5 to 40 µM and 50 to 600 µM, with an LOD of 0.09 µM [232]. In 2019, a fluorine and nitrogen co-doped CDs (F,N-CDs) decorated enzyme-based amperometric biosensor was reported for the selective quantification of catechol in water samples [233]. The synthesis of F,N-CDs was carried out using the hydrothermal technique, where p-phenylenediamine and 5-fluorouracil were used as precursors.…”

Section: Applications Of Cds In Electrochemical Sensorsmentioning

confidence: 99%

Carbon Dots: Classification, Properties, Synthesis, Characterization, and Applications in Health Care—An Updated Review (2018–2021)

2021

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Carbon dots (CDs) are usually smaller than 10 nm in size, and are meticulously formulated and recently introduced nanomaterials, among the other types of carbon-based nanomaterials. They have gained significant attention and an incredible interest in the field of nanotechnology and biomedical science, which is merely due to their considerable and exclusive attributes; including their enhanced electron transferability, photobleaching and photo-blinking effects, high photoluminescent quantum yield, fluorescence property, resistance to photo-decomposition, increased electrocatalytic activity, good aqueous solubility, excellent biocompatibility, long-term chemical stability, cost-effectiveness, negligible toxicity, and acquaintance of large effective surface area-to-volume ratio. CDs can be readily functionalized owing to the abundant functional groups on their surfaces, and they also exhibit remarkable sensing features such as specific, selective, and multiplex detectability. In addition, the physico-chemical characteristics of CDs can be easily tunable based on their intended usage or application. In this comprehensive review article, we mainly discuss the classification of CDs, their ideal properties, their general synthesis approaches, and primary characterization techniques. More importantly, we update the readers about the recent trends of CDs in health care applications (viz., their substantial and prominent role in the area of electrochemical and optical biosensing, bioimaging, drug/gene delivery, as well as in photodynamic/photothermal therapy).

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“…[263] ZnO@GQD/PGE 6-MP DPV 0.01-700 μM 5.72 nM [184] CQDs/NH 2À fMWCNT/AgNPs/GCE RIL AdSDPV -- [185] DMCCE/GQDs Zlp DPV 0.1-10 μM 0.06 μM [186] MIP/AuNPs/GQD-SH/SPCE SOT DPV 0. [190] Au/AgNRs@N-GQDs-MIP/SPCEs HU DPASV 0.55-108.44 ng/mL 0.05 ng/mL [191] GQDs-thio/npGCE Cisplatin DPASV 0.2-110 μM 0.09 μM [192] CS/CDs-CTAB/GCE Mesalazine amperometry 0.1-10 μM 0.05 μM [193] [194] Co 3 O 4 -His-GQD/GCE HQ DPV 2 nM-0.8 mM 0.82 nM [195] CuO-His-GQD/GCE HQ DPV 0.001-40 μM 0.00031 μM [196] Au-GQDs/GCE CC DPV 2-50 μM 0.869 μM [197] Lac-F,N-CDs/GCE CC amperometry 12-450 μM 14.0 nM [198] GQDs/GCE HQ CC CNDs-CS/GCE TCS LSV 10 nM-1.0 mM 9.2 nM [199] MIP-Au/CS-CDS/GCE PAT DPV 1 pM-1 nM 0.75 pM [200] GQDs/AgNP/GCE TBHQ DPV 0.15-300 μM 0.07 μM [201] CQDs/GCE TNT DPV 5 nM-30 μM 1 nM [161] N-GQDs/GCE TNT LSV 1-400 ppb 0.2 ppb [202] (WP6s) and (N-CQDs)/GCE TNT DPV 0.001-20.0 μM 0.95 nM [203] Apt/AgNPs/thiol-GQD/GCE MIPPy/GQDs/GCE BPA DPV 0.1-50 μM 0.04 μM [211] NF/N-CDs/GCE BPA amperometry 0.01-0.21 μM 1.3 nM [212] GQDs-hNiNS/MIECS/GCE BPS DPV 0.1-50 μM 0.03 μM [213] GNs/Pro-GQD/GCE APAP DPV 0.08-100 μM 0.02 μM [156] Pt/carbon black (Vulcan XC-72)-CQDs/NF/GCE CH 3 OH CV amperometry -- [214] PtCo/GCG/GCE CH 3 OH CV -- [215] Au@N-CQDs@Pt/GCE CH 3 OH CV -- [216] Pt nanoflowers decorated -CQD composite CH 3 OH CV -- [217] Pt/NCQDs-MWCNT/GCE CH 3 OH CV -- [218] Pt/NCQDs-MWCNT/GCE CH 3 OH CV -- [219] GQDs-CS-GCE β-CD-GQDs-GCE CH 3 OH CV -- [220] Pt/Lg-CDs/GCE CH 3 OH CV -- [221] Pd-NPs/RCQDs/GCE CH 3 OH LSV -- [222] GQDs/α-CD/AgNPs/GCE AFM1 LSV 0.015-25 mM 2 μM [223] 2-aminobenzyl amine/GQD/SPE Parathion EIS 0.01-10 6 ng/L 46 pg/L…”

Section: Metal Ion Sensingmentioning

confidence: 99%

Carbon Nanodots in Electrochemical Sensors and Biosensors: A Review

et al. 2020

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This Review presents the latest advances in designing electrochemical sensors by using carbon nanodots (CNDs), carbon dots (CDs), and graphene quantum dots (GQDs), as a new class of photoluminescent nanomaterials, which can be employed in a vast number applications, such as biomedicine, biosensing, optical sensing, catalysis, solar cells, imaging, and electrochemical sensing. Recently, the application of CDs and GQDs in electrochemical sensing has increased significantly because of their unique features such as quantum size, excellent biocompatibility, enzyme‐like activity, high active area, and abundance of hydrophilic groups, such as hydroxyl, carboxyl, or amine functionalities. The applications of CDs and GQDs for the electrochemical sensing of hydrogen peroxide, glucose, other organic molecules, as well as metal ions are presented. The utilization of CDs and GQDs for immunosensing and aptasensing is also reported.

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Electrochemical sensor based on F,N-doped carbon dots decorated laccase for detection of catechol

Cited by 83 publications

References 57 publications

Multicolor Phenylenediamine Carbon Dots for Metal-Ion Detection with Picomolar Sensitivity

Multicolor Phenylenediamine Carbon Dots for Metal-Ion Detection with Picomolar Sensitivity

Carbon Dots: Classification, Properties, Synthesis, Characterization, and Applications in Health Care—An Updated Review (2018–2021)

Carbon Nanodots in Electrochemical Sensors and Biosensors: A Review

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