Used in molecular biology and biochemistry to enhance the uptake of nucleic acids into cells during transfection. It is particularly effective in introducing DNA or RNA into cultured cells by promoting their binding to the cell membrane and facilitating endocytosis. Commonly used in both transient and stable transfection protocols due to its simplicity and cost-effectiveness. Also employed in vaccine development to improve antigen delivery. Additionally, it serves as a tool in chromatography for the separation of biomolecules based on charge differences.