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Progress of recyclable magnetic particles for biomedical applications

Abstract

Recyclable magnetic particles constitute a class of particles that can be manipulated by external magnetic fields and reused for multiple times. These particles consist of a magnetic part and a functional part and have been widely used in biomedical field, such as enzyme immobilization, biochemical separation, nucleic acid detection and antibacterial agents, owing to their advantages of convenient operation, high efficiency, mild separation, and easy recycling. In this review, we investigate the research status of recyclable magnetic particles, and discuss their preparation methods, types and recycling methods in detail. According to their structure, existing recyclable magnetic particles are divided into three main types: core–shell structure particles, matrix-dispersed structure particles and hollow structure particles. Each type of recyclable magnetic particles requires a treatment procedure for reuse, which includes direct reuse, washing treatment, chemical treatment and high-temperature calcination. To date, most recycling methods for magnetic particles belong to washing and chemical treatment, and few studies focus on novel magnetic recycling methods, owing to the lack of systemic summary and theoretical studies. We also point out the deficiencies of preparation and treatment methods, and predict the development direction of recyclable magnetic particles. We predict that recyclable magnetic particles will occupy an important position in the field of sustainable development and environmental protection, and considerable perspectives will be presented for the development of recyclable magnetic particles.

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Publication details

The article was received on 12 Nov 2017, accepted on 06 Dec 2017 and first published on 06 Dec 2017


Article type: Review Article
DOI: 10.1039/C7TB02941A
Citation: J. Mater. Chem. B, 2017, Accepted Manuscript
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    Progress of recyclable magnetic particles for biomedical applications

    Z. Liu, Y. Liu, S. Shen and D. Wu, J. Mater. Chem. B, 2017, Accepted Manuscript , DOI: 10.1039/C7TB02941A

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