Used extensively in cell culture as a coating agent to enhance cell adhesion and growth on various surfaces, particularly for neurons and other sensitive cell types. It helps create a positively charged surface, promoting the attachment of cells that require a stable environment for proliferation. Additionally, it is employed in tissue engineering and regenerative medicine to improve the performance of scaffolds and biomaterials. Its application also extends to research involving stem cells, where it aids in maintaining cell viability and differentiation. In some cases, it is utilized as a transfection enhancer in gene delivery studies, improving the efficiency of nucleic acid uptake by cells.