ArticleJournal of fluorescence2026
Preparation of N-Doped Carbonized Polymer Dots with Narrow FWHM Based on Single Source with Self-Alkaline Induced Hydrolysis for Fluorescence Probe.
Article in Journal of fluorescence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Carbon dots have attracted considerable attention in the field of ion sensing due to their excellent optical properties and biocompatibility. Currently, arginine-based carbon dots are predominantly synthesized via hydrothermal methods, which suffer from long synthesis times and the use of a single solvent system. In this study, L-arginine was employed as the sole carbon source, utilizing its intrinsic alkalinity to adjust the solution pH. Nitrogen-doped carbon dots were synthesized in one step in an ethanol system using a microwave reactor at 210 °C. The as-prepared carbon dots exhibit an emission peak at 350 nm under 290 nm excitation, with a fluorescence quantum yield of 11.31% and a full width at half maximum (FWHM) of only 54 nm, which is significantly narrower than that of carbon dots synthesized by conventional microwave methods. A fluorescence sensor for Fe³⁺ constructed based on these carbon dots demonstrates good selectivity and a wide linear response range (0.5-5180µmol·L
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