Effects of Polar Aromatic Compounds on Carbon Quantum Dot's Wavelength

Effects of Polar Aromatic Compounds on Carbon Quantum Dot's Wavelength
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Abstract
Carbon quantum dots (CQDs) have attracted significant attention due to their unique optical, electrical, and biological properties. This review highlights recent advances in the synthesis, properties, and applications of CQDs, focusing on their biomedical applications (Wang et al., 2019). The review covers the various methods of CQD synthesis, including top-down and bottom-up approaches. It discusses the factors affecting their photoluminescence properties, such as size, surface functionalization, and impurities (Singh & Singh, 2019). The potential applications of CQDs in biosensing, imaging, drug delivery, and therapeutics are also discussed, emphasizing their biocompatibility and low toxicity. Finally, the review highlights the current challenges and future directions in CQD research, including the need for standardized characterization techniques and the development of scalable synthesis methods for large-scale production. Overall, this review provides a comprehensive overview of the current state of CQD research and its potential as a promising material for biomedical applications.
Keywords: CDQs, biomedical applications, biosensing, biomedicine, nanomedicine.
Effects of Polar Aromatic Compounds on Carbon Quantum Dot's Wavelength
Introduction
Carbon quantum dots (CQDs) have emerged as a promising class of fluorescent carbon nanoparticle, offering a range of unique and attractive properties that make them a promising candidate for a wide range of applications, particularly in biomedicine and nanomedicine. Since their discovery in 2004, researchers have been exploring the properties and potential applications of CQDs, particularly their distinct excitation-dependent photoluminescence and high fluorescence quantum yield, which allow for stronger fluorescence intensity signals compared to other quantum dots (QDs) and color manipulation by varying the excitation wavelength.[Ngafwan et al]
CQDs have already shown potential in enhancing optical imaging systems' selective-detecting and sensing performance. However, their integration into practical applications is still hindered by several challenges, such as the influence of biological contaminants commonly found in the environment, particularly aromatic organic compounds (AOC), on CQDs' fluorescent emission spectra. The effect of AOCs on CQDs' fluorescence spectra remains relatively unknown, which limits the understanding of their performance and potential applications in real-world scenarios.[Ngafwan et al]
In order to address this gap, the study analyzes the fluorescence spectrum of citric acid-based CQDs in the presence of polar aromatic compounds to understand their effects on the spectra, ranging from the deep UV to near IR. The research builds on existing literature exploring CQDs' properties and potential applications, particularly in biomedicine and nanomedicine. For instance, Singh and Singh (2019) investigated the potential of CQDs for enhancing optical imaging performance, while Sahu et al. (2012) explored the unique photoluminescence properties of CQDs...