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Promising Green Nanomaterials

机译:有前途的绿色纳米材料

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Researchers are creating green nanomaterials, with an eye toward their hazards as well as cleanup potentials and pitfalls.rnIn the quest to clean water of unwanted pollutants, one of the latest tools is shaped like the roots of a tree and can reach 100 nanometers from tip to tip. This multibranching molecule is based on a dendrimer-a snowflake-shaped molecule with functionalized junctions that bind targeted contaminants.rn"We have produced these things that can bind fluoride, chloride, nitrate, bromide, phosphate," and, in particular, carcinogenic perchlorate, says Mamadou Diallo of the California Institute of Technology. His team's modified dendrimer tailored to capture perchlorate was patented at the end of last year. "We can make these very fast."rnThe use of dendrimers as cleanup tools is a relatively new application that represents some of the many promises-and possible perils-of nanotechnology in the environment. Newly discovered properties on small scales could lead to less chemical use and permit more chemical cleanup in industrial settings. Nanomaterials might make it possible to tackle seemingly intractable contaminants, such as PCBs. The materials can be recyclable, tailored to specific purposes, and are relatively cheap and are easy to make.
机译:研究人员正在研究绿色纳米材料,着眼于它们的危害以及清理的潜力和陷阱。rn为了清洁有害污染物的水,一种最新的工具的形状像一棵树的根,可以从尖端到100纳米。小费。这种多分支分子是基于树枝状聚合物(一种具有结合特定污染物的功能化连接的雪花状分子)。“我们已经生产出可以结合氟化物,氯化物,硝酸盐,溴化物,磷酸盐的物质,”尤其是致癌的高氯酸盐,加州理工学院的Mamadou Diallo说。去年年底,他的团队为捕获高氯酸盐而设计的改性树枝状聚合物获得了专利。 “我们可以使它们变得非常快。”树枝状大分子作为清洁工具的使用是一个相对较新的应用,代表了环境中纳米技术的许多前景-并可能带来危害。新发现的小规模特性可以减少化学药品的使用,并允许在工业环境中进行更多的化学清理。纳米材料可能使处理看似难处理的污染物(例如PCB)成为可能。这些材料可以回收利用,针对特定目的进行定制,并且相对便宜且易于制造。

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  • 来源
    《Environmental Science & Technology》 |2009年第5期|1247-1249|共3页
  • 作者

    NAOMI LUBICK;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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