Fluorescent quantum dots are widely used in bioimaging and medical diagnostics due to their bright and stable fluorescence. They enable high-resolution imaging of cells and tissues, helping researchers track biological processes in real time. In cancer research, they are employed to target and visualize tumor cells, aiding in early detection and treatment monitoring. Additionally, they are utilized in optoelectronic devices, such as LEDs and solar cells, to enhance efficiency and light emission. Their tunable optical properties make them valuable in sensing applications, including environmental monitoring and detection of chemical or biological agents. Quantum dots also play a role in display technologies, providing vibrant colors and improved energy efficiency in screens.