Magnetic Polystyrene Nanospheres

Product Overview
Magnetic polystyrene nanospheres are composite nanoparticles with a core of magnetic Fe₃O₄ (iron oxide) and a shell of polystyrene (PS) polymer. These nanospheres exhibit superparamagnetism, enabling them to quickly magnetize and demagnetize under an external magnetic field. The polystyrene shell enhances their stability and dispersibility in various media, making them suitable for a wide range of applications in biomedical, catalytic, and adsorption fields.

Key Features

• Superparamagnetism: Due to the Fe₃O₄ core, these polystyrene nanospheres can rapidly magnetize and demagnetize when exposed to an external magnetic field, making them useful in magnetic separation and imaging.
• Stability: The polystyrene shell improves the stability of the nanospheres, preventing aggregation and enhancing their performance in different media.
• Surface Functionalization: The surface of the nanospheres can be modified to improve stability or introduce specific functionalities, such as targeting for drug delivery or biomolecule conjugation.
• Biocompatibility: These nanospheres offer good biocompatibility, making them ideal for various biomedical applications.

Applications

• Biomedical Applications: Used in nucleic acid extraction, cell separation, resonance imaging, drug screening and delivery, as well as disease detection and diagnostics.
• Catalyst Support: As a catalyst carrier, the magnetic properties of the nanospheres enable easy separation and recovery of catalysts, enhancing catalyst longevity.
• Magnetic Adsorbents: Due to their excellent hydrophobicity and stability, they are widely used in water treatment for pollutant adsorption and separation.