Carbon dots-based dopamine sensors: Recent advances and challenges

Liu, Chenghao; Lin, Xiaofeng; Liao, Jing; Yang, Min; Jiang, Min; Huang, Yue; Du, Zhizhi; Chen, Lina; Fan, Sanjun; Huang, Qitong

doi:10.1016/j.cclet.2024.109598

Cited by 10 publications

(2 citation statements)

References 153 publications

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“…We theorize that this is due to (i) the generation of Fe 2 + $ Fe 3 + sites with low electroactive surface area, (ii) slow interfacial electron transfer between Fe 3 + and DA, and (iii) low DA adsorption capacity at Fe 2 + $ Fe 3 + interfaces. In this study, we aimed to validate our hypothesis by mitigating (i), (ii), and (iii) via manipulating phase and morphology in FeOOH/Fe 2 O 3 heterojunctions anchored on sp 2 carbon. The synthesis of FeOOH/Fe 2 O 3 heterojunctions involved the variable temperature aging of uniquely prepared Fe 5 H 9 O 15 / Fe 2 O 3 @sp 2 -carbon colloidal nanoparticles which were synthesized via chelation reactions between biomass-derived carbon nanodots (CNDs) and Fe 2 + ions.…”

Section: Introductionmentioning

confidence: 96%

“…Dopamine (DA) performs critical regulatory functions in various mammalian physiological systems, including the central nervous, renal, cardiovascular, and hormonal systems. [1][2][3] Dysregulation of DA has been linked with several severe degenerative diseases, including Parkinson's disease, Alzheimer's disease, schizophrenia, ADHD, and HIV infection. [4][5][6][7] Accurate quantification of DA in biological fluids is pivotal for the diagnosis and treatment of these ailments, given its typically low concentration range (normal range: 0.01-1.0 μM), [5,[8][9][10] it is necessitating the development of highly sensitive and selective analytical tools.…”

Section: Introductionmentioning

confidence: 99%

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Engineering FeOOH/Fe₂O₃@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection

Guye,

Appiah‐Ntiamoah,

Dabaro

et al. 2024

Chemistry An Asian Journal

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The Fe2+/Fe3+ redox couple is effective for voltammetric detection of trace dopamine (DA). However, achieving adequate concentrations with high electroactive surface area (ECSA), DA affinity, and fast interfacial charge transfer is challenging. Consequently, most reported Fe‐based sensors have a high nanomolar range detection limit (LOD). Herein, we address these limitations by manipulating the phase and morphology of FeOOH/Fe2O3 heterojunctions anchored on sp2‐carbon. FeOOH/Fe2O3 is synthesized by variable temperature aging of unique Fe5H9O15/Fe2O3@sp2‐carbon colloidal nanoparticles, which form via chelation between biomass‐derived carbon nanodots (CNDs) and Fe2+ ions. At 27°C and 120°C, Fe5H9O15/Fe2O3@sp2‐carbon transforms into β‐FeOOH/Fe2O3 nanoparticles and α‐FeOOH/Fe2O3 nanosheet, respectively. The β‐FeOOH/Fe2O3 interface exhibits higher eg orbital electron occupancy than α‐FeOOH/Fe2O3, thereby facilitating oxygen adsorption and the generation of Fe2+/Fe3+ sites near the polarization potential of DA. This facilitates interfacial electron transfer between Fe3+ and DA. Moreover, its nanoparticle morphology enhances ECSA and DA adsorption compared to α‐FeOOH/Fe2O3 nanosheets. With a LOD of ~3.11 nM, β‐FeOOH/Fe2O3 surpasses the lower threshold in humans (~10 nM) and matches noble‐metal sensors. Furthermore, it exhibits selective detection of DA over 10 biochemicals in urine. Therefore, the β‐FeOOH/Fe2O3@sp2‐C platform holds promise as a low‐cost, easy‐to‐synthesize, and practical voltammetric DA monitor.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Engineering FeOOH/Fe₂O₃@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection

Guye,

Appiah‐Ntiamoah,

Dabaro

et al. 2024

Chemistry An Asian Journal

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Thiourea‐Modified Multiwalled Carbon Nanotubes as Electrochemical Biosensor for Ultra‐Precise Detection of Dopamine

Jaryal,

Kumar,

Singh

et al. 2024

ChemNanoMat

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Functionalized multi‐walled carbon nanotubes (MWCNTs) have enticed remarkable attention in the field of electrochemical sensing applications. Dopamine (DA) is a monoamine neurotransmitter released in the brain acting as a chemical messenger that communicates messages between nerve cells and the rest of the body. Therefore, there is a significant technological urge for the development of electrochemical sensors for DA in body fluids. In this context, nitrogen‐functionalized MWCNTs (TM‐CNT600) were fabricated by thermal annealing of carboxylic acid functionalized MWCNTs with thiourea at 600 oC under N2 atmosphere. The XPS spectrum reveals the presence of nitrogen‐containing functionalities in the as‐prepared TM‐CNT600. FTIR results show the presence of ‐OH, C‐N and C‐S functional groups. XPS further corroborates the FTIR results and quantifies the predominant functional groups in as‐prepared material. The material was investigated as a potential electrochemical sensor for the detection of dopamine (DA). In the case of TM‐CNT600/GCE, a linear relationship for DA concentration was observed in the range of 10.7 ‐ 24.2 μM with the limit of detection (LOD) of 1.42 μM using linear sweep voltammetry (LSV). These results highlight the potential of TM‐CNT600 modified GCE as an efficient sensor for the electrochemical detection of DA in body fluids.

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Advancing aqueous zinc‐ion batteries with carbon dots: A comprehensive review

Chen,

Ma,

Feng

et al. 2024

EcoEnergy

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Recent years have witnessed a surge in research on aqueous zinc‐ion batteries (AZIBs) due to their low cost, stability, and exceptional electrochemical performance, among other advantages. However, practical manufacturing and deployment of AZIBs have been hindered by challenges such as low energy density, significant precipitation‐related side reactions, slow ion migration, and dendritic growth. Addressing these issues and enhancing the practical application of AZIBs necessitates the development of novel materials. Carbon dots (CDs), with their distinctive structure and superior electrochemical properties, represent an innovative class of carbon‐based materials with broad potential applications for optimizing AZIBs' performance. This study offers a comprehensive review of how CDs can address the aforementioned challenges of AZIBs. It begins with an overview of AZIBs composition and mechanism before delving into the classification, preparation techniques, and functionalization strategies of CDs. The review also thoroughly summarizes the sophisticated roles of CDs as modifiers in electrolytes and electrodes, both positive and negative, and briefly discusses their potential application in membranes. Additionally, it provides a summary of current issues and difficulties encountered in utilizing CDs in AZIBs. This review aims to provide insights and guidance for designing and manufacturing the next generation of high‐performance AZIBs.

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Carbon dots-based dopamine sensors: Recent advances and challenges

Cited by 10 publications

References 153 publications

Engineering FeOOH/Fe₂O₃@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection

Engineering FeOOH/Fe₂O₃@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection

Thiourea‐Modified Multiwalled Carbon Nanotubes as Electrochemical Biosensor for Ultra‐Precise Detection of Dopamine

Advancing aqueous zinc‐ion batteries with carbon dots: A comprehensive review

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Carbon dots-based dopamine sensors: Recent advances and challenges

Cited by 10 publications

References 153 publications

Engineering FeOOH/Fe2O3@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection

Engineering FeOOH/Fe2O3@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection

Thiourea‐Modified Multiwalled Carbon Nanotubes as Electrochemical Biosensor for Ultra‐Precise Detection of Dopamine

Advancing aqueous zinc‐ion batteries with carbon dots: A comprehensive review

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Product

Resources

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Engineering FeOOH/Fe₂O₃@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection

Engineering FeOOH/Fe₂O₃@Carbon Interfaces With Biomass‐Derived Carbon Nanodot/Iron Colloids for Efficient Redox‐Modulated Dopamine Voltammetric Detection