Fluorescent quantum dots are widely used in biological imaging due to their bright and stable fluorescence. They are employed as labeling agents to track and visualize cells, proteins, and DNA in research and diagnostics. In medical applications, they help in cancer detection by targeting and illuminating tumor cells. In electronics, quantum dots enhance display technologies, providing vibrant and energy-efficient colors in TVs and monitors. They are also utilized in solar cells to improve light absorption and energy conversion efficiency. Additionally, quantum dots play a role in environmental monitoring, detecting pollutants and toxins with high sensitivity. Their versatility makes them valuable in advancing both scientific and industrial fields.