Sulfur and nitrogen co-doped carbon dots sensors for nitric oxide fluorescence quantification

Simões, Eliana F. C.; Leitão, João M.M.; Silva, Joaquim C. G. Esteves da

doi:10.1016/j.aca.2017.01.007

Cited by 52 publications

(25 citation statements)

References 48 publications

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“…They have used the synthesized carbon dots for detection of Cr(VI) ions via inner filter effect 11 Eliana F.C. Simons et al have reported NS codoped carbon dots as a selective sensor for nitric oxide 12 Due to the amorphous nature of most well-documented carbon dots, it isn't easy to have a generalized idea about their properties and thus application potential 14 Therefore; it is highly desirable to introduce crystallinity in carbon dots to improve their application potential, especially in high-efficiency electron and energy transfer 15 .…”

Section: Introductionmentioning

confidence: 99%

Highly crystalline N and S co-doped carbon dots as a selective turn off–on sensor for Cr(vi) and ascorbic acid and a turn off sensor for metanil yellow

Abbasi

Shakir

2022

Sens. Diagn.

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Section: Introductionmentioning

confidence: 99%

Highly crystalline N and S co-doped carbon dots as a selective turn off–on sensor for Cr(vi) and ascorbic acid and a turn off sensor for metanil yellow

Abbasi

Shakir

2022

Sens. Diagn.

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“…Furthermore, CDs prepared using other amine sources (ethylenediamine, urea, and aminoguanidine) have been used for the detection of NO. [45][46][47] However, the mechanism of detection by CDs has been given in a couple of reports. [45] Moreover, the type of signal (turn-on OR turn-off) obtained from CDs-based sensors for the detection of small molecules has been found contradictory in some reports.…”

Section: Introductionmentioning

confidence: 99%

Aggregation‐Induced Quenching of Carbon Dots for Detection of Nitric oxide

et al. 2022

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This study reports the synthesis of three types of carbon dots (CDs) prepared using citric acid as a carbon source and three different biomolecules (L‐serine, L‐threonine, and adenine) individually as an amine source. The obtained nanomaterials were characterized by powder XRD, TEM, FTIR, 13C NMR, distortionless enhancement by polarization transfer using a 135‐degree decoupler pulse (DEPT 135), dynamic light scattering (DLS), and Small‐Angle X‐ray Scattering (SAXS) techniques. After ensuring the formation of desired structures, prepared CDs were used for exploring the detection capabilities of different reactive nitrogen species and reactive oxygen species. Following the screening of their detection capabilities specifically for nitric oxide, different sensing parameters viz the limit of detection, quenching constant, and interferences were evaluated. Among the synthesized CDs, the lowest detection limit of 0.1 μM was determined for the serine‐derived dots while 0.12 and 0.19 μM was obtained for adenine and threonine‐derived dots, respectively. Eventually, a possible sensing mechanism for the detection of NO by the prepared nanomaterials is proposed.

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“…For instance, a boron-doped-CDs was used as fluorescent probe to determine triticonazole in which triticonazole quenched the fluorescence intensity of boron-doped CDs, while it has no effect on the un-doped CDs 39 . In the other study, a selective S, N-doped CDs based fuorescence probe was designed for the determination of nitric oxide, which the selectivity of this sensor was attributed to doping of S atoms 40 .…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted facile synthesis of N, P co-doped fluorescent carbon dot probe for the determination of nifedipine

2022

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A simple and fast microwave synthesis method was applied for the preparation of several carbon dots (CDs) from various combinations of urea, phosphoric acid, and B-alanine as nitrogen, phosphorus, and carbon precursors. The maximum quantum yield (44%) was obtained for nitrogen and phosphorus codoped carbon dots (N, P-CDs) prepared from urea, B-alanine, and phosphoric acid. Furthermore, N, P-CDs were exploited to synthesize a simple and sensitive fluorometric probe to determine of nifedipine (NFD). We indicated that the analytical response of the designed sensor could be affected by the kind of dopant and synthesis precursors. It is worth mentioning that just the fluorescence intensity of N, P-CDs was declined by NFD, and no fluorescence quenching was observed for other prepared CDs. The NFD-developed sensor indicated the linear response range of 3.3×10 -8 to 3.2×10 -5 mol/L, with the detection limit of 1.0×10 -8 mol/L. The sensor was successfully applied to measure NFD in human biological fluids.

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Sulfur and nitrogen co-doped carbon dots sensors for nitric oxide fluorescence quantification

Cited by 52 publications

References 48 publications

Highly crystalline N and S co-doped carbon dots as a selective turn off–on sensor for Cr(vi) and ascorbic acid and a turn off sensor for metanil yellow

Highly crystalline N and S co-doped carbon dots as a selective turn off–on sensor for Cr(vi) and ascorbic acid and a turn off sensor for metanil yellow

Aggregation‐Induced Quenching of Carbon Dots for Detection of Nitric oxide

Microwave-assisted facile synthesis of N, P co-doped fluorescent carbon dot probe for the determination of nifedipine

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