Used in molecular biology and biochemistry to enhance the uptake of nucleic acids into cells, particularly in transfection protocols. It facilitates the binding of DNA or RNA to the cell surface, promoting endocytosis and improving gene delivery efficiency. Commonly applied in both adherent and suspension cell cultures, especially when working with cell types that are difficult to transfect. Also employed in vaccine development to boost immune responses by acting as an adjuvant. Its ability to interact with negatively charged molecules makes it useful in separation techniques and purification processes.