High quantum yield carbon dots and nitrogen-doped carbon dots as fluorescent probes for spectroscopic dopamine detection in human serum

Tiwari, Ashish; Walia, Sidharth; sharma, shradha; Chuahan, Sunidhi; Kumar, Manish; Gadly, Trilochan; Randhawa, Jaspreet Kaur

doi:10.1039/d2tb02188a

Cited by 31 publications

(22 citation statements)

References 71 publications

(86 reference statements)

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“…S3 †). 52,53 Tartrazine sensing Fluorescence quenching studies of N,S-CDs were performed in the presence of different concentrations of tartrazine (0.1-60 µM), and the fluorescence spectra are shown in Fig. 4a.…”

Section: Resultsmentioning

confidence: 99%

Green synthesis of N,S-doped carbon dots for tartrazine detection and their antibacterial activities

Mohanta,

Behuria,

Sahu

et al. 2023

Analyst

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Section: Resultsmentioning

confidence: 99%

Green synthesis of N,S-doped carbon dots for tartrazine detection and their antibacterial activities

Mohanta,

Behuria,

Sahu

et al. 2023

Analyst

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“…The popularity of CDs for bioimaging have been attributed to their unique photoluminescence properties and high quantum yields. , Their π-conjugated system absorbs UV light and provides emission of visible light facilitated by both n → π* and π → π* transitions of C=N and C=O, and C=C bonds, respectively. , Many studies suggest that N doping (adding nitrogen) of CDs leads to higher quantum yields . These inherent photoluminescence properties and biocompatibility of CDs make them ideal fluorescent probes, where they have been utilized to image cells, , biomolecules, and various other biological systems. − …”

Section: Carbon Nanomaterials Synthesis and Characterizationmentioning

confidence: 99%

“…62,63 The popularity of CDs for bioimaging have been attributed to their unique photoluminescence properties and high quantum yields. 64,65 Their π-conjugated system absorbs UV light and provides emission of visible light facilitated by both n → π* and π → π* transitions of C=N and C=O, and C=C bonds, respectively. 66,67 Many studies suggest that N doping (adding nitrogen) of CDs leads to higher quantum yields.…”

Section: Carbon Dots (Cds)mentioning

confidence: 99%

Carbon Nanomaterial Fluorescent Probes and Their Biological Applications

Krasley,

Li,

Galeana

et al. 2024

Chem. Rev.

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Fluorescent carbon nanomaterials have broadly useful chemical and photophysical attributes that are conducive to applications in biology. In this review, we focus on materials whose photophysics allow for the use of these materials in biomedical and environmental applications, with emphasis on imaging, biosensing, and cargo delivery. The review focuses primarily on graphitic carbon nanomaterials including graphene and its derivatives, carbon nanotubes, as well as carbon dots and carbon nanohoops. Recent advances in and future prospects of these fields are discussed at depth, and where appropriate, references to reviews pertaining to older literature are provided.

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“…Then, the redox peaks in the cyclic voltammetry curve were analyzed and ferrocene was used as an external standard. The following equation (1) was used to calculate the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels [15] E E E 4.8 ev, 1…”

Section: The Cyclic Voltammetry and Quantum Yield Test For Bcqds And ...mentioning

confidence: 99%

Biomass carbon and Ti₂C₃MXene quantum dots as ratiometric fluorescent probes for sensitive detecting malachite green in fish sample

Wang,

Luo,

Zou

et al. 2024

Nanotechnology

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A visual detection method for malachite green (MG) in food was established based on “Double-response-OFF” ratiometric fluorescent paper-based sensor. Biomass carbon quantum dots (BCQDs) using broad bean shell, and Ti3C2MXene quantum (MQDs) dots modified by ethylenediamine were synthesized by solvothermal method. The MG and two kinds of quantum dots could undergo static quenching, and the fluorescence color of two kinds of quantum dots gradually changed from red to blue, eventually the fluorescence was quenched, and the pattern had a two-stage linear relationship using fluorescent spectrofluorometer in the range of 0.1-140.0 μM and the detection limit of 0.07 μM. On this basis, a Biomass/MXene quantum dots ratiometric fluorescence paper-based sensor was constructed and applied to fish sample. Through mobile phone software-Color recognizer, RGB values of fluorescent paper-based sensor at various concentrations of MG were extracted. The results showed that MG concentration was linearly correlated with R' value of RGB in the range of 20.0-140.0 μM with 16.5 μM detection limit. The method had been applied to the determination of canned fish and fresh basa fish samples, and the recovery rates were 97.33-108.93 % and 96.04-117.97 %, respectively. It proved that the ratiometric fluorescent paper-based sensor could be used for the rapid visual quantitative detecting MG in real samples. 

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High quantum yield carbon dots and nitrogen-doped carbon dots as fluorescent probes for spectroscopic dopamine detection in human serum

Abstract: Recent advances in fluorescent carbon dots have shown great potential for sensing biological molecules. In this study, one-step hydrothermally synthesised carbon dots (CD) and nitrogen doped carbon dots (NCD) with...

Cited by 31 publications

References 71 publications

Green synthesis of N,S-doped carbon dots for tartrazine detection and their antibacterial activities

Green synthesis of N,S-doped carbon dots for tartrazine detection and their antibacterial activities

Carbon Nanomaterial Fluorescent Probes and Their Biological Applications

Biomass carbon and Ti₂C₃MXene quantum dots as ratiometric fluorescent probes for sensitive detecting malachite green in fish sample

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High quantum yield carbon dots and nitrogen-doped carbon dots as fluorescent probes for spectroscopic dopamine detection in human serum

Abstract: Recent advances in fluorescent carbon dots have shown great potential for sensing biological molecules. In this study, one-step hydrothermally synthesised carbon dots (CD) and nitrogen doped carbon dots (NCD) with...

Cited by 31 publications

References 71 publications

Green synthesis of N,S-doped carbon dots for tartrazine detection and their antibacterial activities

Green synthesis of N,S-doped carbon dots for tartrazine detection and their antibacterial activities

Carbon Nanomaterial Fluorescent Probes and Their Biological Applications

Biomass carbon and Ti2C3MXene quantum dots as ratiometric fluorescent probes for sensitive detecting malachite green in fish sample

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Biomass carbon and Ti₂C₃MXene quantum dots as ratiometric fluorescent probes for sensitive detecting malachite green in fish sample