Monodisperse amino silica microspheres are widely used in chromatography as stationary phases due to their uniform size and surface functionalization. Their amino groups enable efficient separation of polar compounds, making them ideal for applications in HPLC and ion-exchange chromatography. In biomedicine, they serve as carriers for drug delivery systems, where their surface can be modified to target specific cells or tissues. Additionally, these microspheres are employed in diagnostics as substrates for immobilizing biomolecules like antibodies or DNA probes, enhancing the sensitivity and specificity of assays. Their use in catalysis is also notable, as the amino groups can anchor metal nanoparticles, facilitating various chemical reactions.