One-pot synthesis of nitrogen-doped carbonized polymer dots with tunable emission for multicolor light-emitting diodes

Carbon dots (CDs) are attracting significant research attention due to their low toxicity and highly favorable photochemical properties. This study reports the synthesis of nitrogen‐doped CDs (N‐CDs) using 3‐aminophenol and o‐phenylenediamine as carbon precursors and their application to nontoxic, biocompatible polychromatic agents for biological imaging studies. The prepared N‐CDs exhibit multicolored fluorescence (blue, green, yellow, orange) with excellent optical stability and biocompatibility. As a result of Fourier‐transform infrared spectroscopy and X‐ray photoelectron spectroscopy, N‐CD is found to have similar –OH and C–H in the surface functional group, showing a graphene structure with good hydrophilicity. The size of the synthesized N‐CDs is confirmed by transmission electron microscopy images to be less than 10 nm. The 3‐4,5‐dimethylthiazol‐2,5‐diphenyl tetrazolium bromide analysis is performed using HeLa cells, and cell survival is very high in all N‐CDs. Among N‐CDs, G‐CDs exhibit the highest fluorescence intensity and provide excellent fluorescence microscopic images for cells in blue, green, and red channels.

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Synthesis of Multicolor Fluorescent N‐Doped Carbon Dots for Bioimaging Applications

Lee

Kim

2023

Physica Status Solidi (a)

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Context and prospects of carbon quantum dots applied to environmental solutions

Arias Velasco,

Agudelo,

Hotza

et al. 2023

Environmental Nanotechnology, Monitoring & Management

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Carbonized polymer dots-based molecular imprinting: An adsorbent with enhanced selectivity for highly efficient recognition and removal of ceftiofur sodium from complex samples

Wang,

Liu,

Chen

et al. 2024

Journal of Hazardous Materials

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One-pot synthesis of nitrogen-doped carbonized polymer dots with tunable emission for multicolor light-emitting diodes

Cited by 4 publications

References 60 publications

Synthesis of Multicolor Fluorescent N‐Doped Carbon Dots for Bioimaging Applications

Synthesis of Multicolor Fluorescent N‐Doped Carbon Dots for Bioimaging Applications

Context and prospects of carbon quantum dots applied to environmental solutions

Carbonized polymer dots-based molecular imprinting: An adsorbent with enhanced selectivity for highly efficient recognition and removal of ceftiofur sodium from complex samples

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