Digestible Fluorescent Coatings for Cumulative Quantification of Microplastic Ingestion,Environmental Science & Technology Letters

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Digestible Fluorescent Coatings for Cumulative Quantification of Microplastic Ingestion
Environmental Science & Technology Letters ( IF 8.9 ) Pub Date : 2018-01-02 00:00:00 , DOI: 10.1021/acs.estlett.7b00545
Evan G. Karakolis ₁ , Brian Nguyen ₁ , Jae Bem You ₁ , Percival J. Graham ₁ , Chelsea M. Rochman ₂ , David Sinton ₁

Affiliation

The ubiquitous presence of microplastics in the environment makes it imperative to understand their effects. In particular, we must understand exposure, i.e., how many microplastics are ingested by organisms. This has proved difficult because counting microplastics in an organism’s gut content provides only a snapshot in time. Here, we show a method that uses a digestible fluorescent coating (DFC) to quantify cumulative microplastic ingestion. Our method enables precise and automated enumeration of cumulative microplastic ingestion with the flexibility to track different microplastic types and sizes with distinct fluorescent tracers. We confirm the coating is not acutely toxic and is not preferentially ingested by several invertebrate species. This method provides a unique and reliable approach to quantify cumulative microplastic ingestion in laboratory exposure studies, and can be used to advance our understanding of the impact of microplastics to wildlife.

中文翻译：

可消化的荧光涂层，用于微量定量摄入塑料。

在环境中普遍存在微塑料，因此必须了解它们的作用。特别是，我们必须了解暴露，即有机体摄入了多少微塑料。事实证明这很困难，因为计算生物体肠道含量中的微塑料只能提供及时的快照。在这里，我们展示了一种使用可消化的荧光涂层（DFC）量化累积的微塑性摄入的方法。我们的方法能够精确，自动地枚举累积的微塑料摄入量，并具有使用不同的荧光示踪剂跟踪不同微塑料类型和大小的灵活性。我们确认该涂层没有剧毒，并且不会被几种无脊椎动物优先摄取。

更新日期：2018-01-03

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