Carbon nanotubes (CNTs), those tiny cylindrical configurations of pure carbon that have been finding myriad applications in a wide variety of fields, have been the subject of headlines for well over a decade for their potential uses in biological research and medical treatment. Progress toward those goals has been slowed by questions about the safety of the tiny particles when injected directly into the body, where they can sometimes accumulate in certain organs with unknown long-term effects.

中文翻译：

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碳纳米管在生物医学中显示出前景

碳纳米管 (CNT) 是一种微小的圆柱形纯碳结构，已在各个领域得到了无数应用，十多年来因其在生物研究和医疗方面的潜在用途而成为头条新闻。由于微小颗粒直接注射到体内时的安全性问题，这些目标的进展放缓，有时它们会在某些器官中积聚，但长期影响未知。