Fluorescent probes are specialized molecules that emit light when exposed to specific wavelengths of light. They are widely used in scientific research, particularly in biochemistry and cell biology, to visualize and track biological processes. These probes can bind to specific targets, such as proteins or nucleic acids, allowing researchers to observe cellular activities in real-time. These probes work by absorbing light energy and re-emitting it at a longer wavelength, a process known as fluorescence. Their ability to provide high sensitivity and specificity makes them valuable tools in techniques like fluorescence microscopy and flow cytometry, helping scientists gain insights into complex biological systems.