Progress of recyclable magnetic particles for biomedical applications

Area of Science:

• Materials Science
• Biomedical Engineering
• Environmental Science

Background:

• Recyclable magnetic particles are versatile materials manipulated by magnetic fields for repeated use.
• They are widely applied in biomedicine for enzyme immobilization, separation, nucleic acid detection, and antibacterial applications.
• Key advantages include convenient operation, high efficiency, mild separation, and ease of recycling.

Purpose of the Study:

• To review the current research status of recyclable magnetic particles.
• To discuss their preparation methods, structural types, and recycling strategies.
• To identify limitations and predict future development directions.

Main Methods:

• Categorization of recyclable magnetic particles based on structure: core-shell, matrix-dispersed, and hollow.
• Analysis of various recycling methods: direct reuse, washing, chemical treatment, and high-temperature calcination.
• Identification of research gaps, particularly in novel recycling methods and theoretical studies.

Main Results:

• Three main structural types of recyclable magnetic particles identified.
• Common recycling methods involve washing and chemical treatments.
• Limitations in current preparation and treatment methods were highlighted.

Conclusions:

• Recyclable magnetic particles are crucial for sustainable development and environmental protection.
• Further research into novel recycling methods and theoretical understanding is needed.
• Significant future perspectives exist for the advancement of these particles.