• • Construction strategies for Ch-CDs are systematically categorized into one-step synthesis, surface modification, and assembly methods, enabling tailored design for specific applications.
• • Tunable multicolor CPL has been achieved in Ch-CDs, with emission wavelengths spanning the visible spectrum, facilitating applications in displays and anti-counterfeiting.
• • CPL enhancement strategies have yielded dissymmetry factors (glum) up to 10^-2, critical for chiroptical device performance.
• • Triplet-state emission in Ch-CDs enables room-temperature phosphorescence with lifetimes exceeding 1 second, opening avenues in bioimaging and security inks.