这个词是什么意思？
Synthesized magnetic particles under 100 nanometers used in many biomedical applications including DRUG DELIVERY SYSTEMS and CONTRAST AGENTS. The particles are usually coated with a variety of polymeric compounds.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D058185 · MeSH 2026。
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