Synthesis and post-synthesis strategies for polychromatic carbon dots toward unique and tunable multicolor photoluminescence and associated emission mechanism

Abstract

Carbon dots (CDs) with unique and tunable multicolor photoluminescence (PL) emission has got tremendous attention since few years due to their potential multifaceted application; specially in the biomedical and optoelectronic...

Carbon Dots: Synthesis, Characterizations, and Recent Advancements in Biomedical, Optoelectronics, Sensing, and Catalysis Applications

“…Carbon nanodots (CNDs) have recently emerged as promising fluorescent nanomaterials for the precise labeling of biological targets in living cells. Extensive research has concentrated on creating red-emitting CNDs for self-labeling without additional conjugation. , For example, Jiaqing Guo et al designed photoblinking CNDs (P-CNDs) to visualize the interaction between mitochondria and HS – using STORM microscopy. These P-CNDs were prepared utilizing a simple hydrothermal method in ultrapure water, with 3-diethylamino­phenol and tartaric acid serving as carbon and nitrogen suppliers, respectively.…”

Green synthesis of carbon dots from fish scales for selective turn off–on detection of glutathione

“…The fluorescence emission of GF-CDs depends on excitation, indicating that GF-CDs have typical nanostructure characteristics. 45 A series of control experiments explored the optimal synthesis conditions of the grass carp scale precursor, such as different temperatures and reaction times, and considering quinine sulfate as the standard; the fluorescence quantum yield (QY) of GF-CDs was 23.8%. To further examine the cytotoxicity of GF-CDs, CCK-8 assays were performed using K-562 cells as the representative model.…”

Carbon dots as versatile nanomaterials in sensing and imaging: Efficiency and beyond

“…Carbon Nanodots have risen as viable candidates for tagging biological targets within cells due to their distinctive optical properties and lack of substantial toxicity. Efforts to synthesize red-emitting carbon nano dots aim at direct labeling without additional conjugation steps, enhancing the application of carbon dots in bioimaging [ 204 , 205 ]. For instance, photoblinking carbon dots specifically for visualizing mitochondria-HS– interactions via stochastic optical reconstruction microscopy were developed utilizing a simple hydrothermal method with 3-diethylaminophenol and tartaric acid.…”