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首页> 外文期刊>Environmental toxicology and chemistry >COMMERCIALLY MANUFACTURED ENGINEERED NANOMATERIALS FOR ENVIRONMENTAL AND HEALTH STUDIES: IMPORTANT INSIGHTS PROVIDED BY INDEPENDENT CHARACTERIZATION
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COMMERCIALLY MANUFACTURED ENGINEERED NANOMATERIALS FOR ENVIRONMENTAL AND HEALTH STUDIES: IMPORTANT INSIGHTS PROVIDED BY INDEPENDENT CHARACTERIZATION

机译：用于环境和健康研究的商业化工程纳米材料：独立鉴定提供的重要见解

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摘要

Environmental and health studies on nanomaterials are appearing in the literature at a rapid pace. These studies will address important issues related to the environmental health and safety (EHS) of nanomaterials. As noted in many recent workshop and agency reports, studies devoted toward the environmental fate and transport, nanomaterial-biological interactions, toxicity, and overall risk assessment of nanomaterials should have nanomaterial characterization as a central component of the study design. This aspect of the study design is necessary so that risks associated with nanomaterials can be fully understood and related to specific material properties. For studies that use commercially manufactured nanomaterials, the company often provides characterization data (e.g., chemical composition, phase, and size) of the purchased materials. One question is, how good are these data? Another is, what methods of analysis are used to characterize the properties of commercial nanomaterials? In the present study, some examples are presented that show marked differences between independent characterization of commercially manufactured nanomaterials and that provided by the company. Furthermore, information provided by the manufacturer may be incomplete and nonrepresentative of the entire sample and, in some cases, the information can, in fact, be wrong. Thus, the current study demonstrates an important need for independent characterization data in EHS studies of purchased materials.
机译：关于纳米材料的环境和健康研究在文献中迅速出现。这些研究将解决与纳米材料的环境健康与安全（EHS）有关的重要问题。正如最近在许多研讨会和机构报告中所指出的那样，致力于环境命运和运输，纳米材料与生物的相互作用，毒性以及纳米材料的整体风险评估的研究应将纳米材料表征作为研究设计的主要组成部分。研究设计的这一方面是必要的，以便可以充分理解与纳米材料相关的风险并将其与特定的材料特性相关联。对于使用商业生产的纳米材料的研究，该公司经常提供所购买材料的表征数据（例如，化学成分，相和尺寸）。一个问题是，这些数据的质量如何？另一个是，使用什么分析方法来表征商业纳米材料的特性？在本研究中，提供了一些示例，这些示例显示了商业制造的纳米材料的独立表征与公司提供的纳米材料之间的显着差异。此外，制造商提供的信息可能不完整，并且不能代表整个样品，在某些情况下，该信息实际上可能是错误的。因此，当前的研究表明，在所购材料的EHS研究中，对独立表征数据的重要需求。

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