Used in molecular biology and biochemistry to enhance the uptake of nucleic acids into cells, particularly in transfection protocols. It is commonly applied in gene delivery experiments with cultured cells, where it helps bind DNA to the cell surface, promoting endocytosis. Also employed in vaccine development to improve antigen delivery and stimulate immune responses. Additionally, used in chromatography for the separation of biomolecules based on ionic interactions. Its solubility and biocompatibility make it suitable for various biomedical applications, including drug delivery systems and cell culture supplements.