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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Environmental Sources Food & Water Human Health Effects Marine & Wildlife Nanoplastics Remediation Sign in to save

Quantitative assessment of <i>in vivo</i> distribution of nanoplastics in bivalve <i>Ruditapes philippinarum</i> using reliable SERS tag-labeled nanoplastic models

Nanoscale 2022 34 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Yunxia Ji, Yunxia Ji, Hongyu Du, Yunxia Ji, Yunxia Ji, Xizhen Zhao, Xizhen Zhao, Yunqing Wang, Yunqing Wang, Yunqing Wang, Yunqing Wang, Yunqing Wang, Yunqing Wang, Yunqing Wang, Yunqing Wang, Yunqing Wang, Rongchao Mei, Yunxia Ji, Yunxia Ji, Xizhen Zhao, Rongchao Mei, Yunqing Wang, Xizhen Zhao, Panpan Zhang, Xizhen Zhao, Rongchao Mei, Xizhen Zhao, Rongchao Mei, Lingxin Chen Yunqing Wang, Xizhen Zhao, Yunxia Ji, Rongchao Mei, Rongchao Mei, Xizhen Zhao, Lingxin Chen Lingxin Chen Yunqing Wang, Rongchao Mei, Xizhen Zhao, Jiping Ma, Panpan Zhang, Yunqing Wang, Rongchao Mei, Xizhen Zhao, Yunxia Ji, Lingxin Chen Yunqing Wang, Yunxia Ji, Xizhen Zhao, Lingxin Chen Lingxin Chen Lingxin Chen Yunqing Wang, Yunqing Wang, Lingxin Chen Xizhen Zhao, Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Zhiyang Zhang, Lingxin Chen Lingxin Chen Jiping Ma, Jiping Ma, Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen Lingxin Chen

Summary

Researchers developed SERS-labeled nanoplastic models to quantitatively track nanoplastic distribution in Manila clams, revealing size-dependent accumulation patterns across different tissues and providing a reliable method for studying nanoplastic bioavailability in bivalves.

Body Systems
Digestive
Study Type In vivo

Nanoplastics (NPs) as emerging marine pollutants can be taken up by seafood organisms. It is crucial to quantitatively assess NP's distribution behavior in organisms to elucidate concentration dependent biological effects. Such a knowledge gap has remained due to the lack of reliable NP models and analytical methods. Herein, surface enhanced Raman scattering (SERS)-labeled NP models were developed and their bioavailability, distribution and accumulation in <i>Ruditapes philippinarum</i>, a typical marine bivalve, were quantitatively studied. Taking advantage of the sensitive and characteristic SERS signals of the NP models, distribution could be quickly and accurately obtained by the Raman imaging technique. Moreover, quantitative analysis of NPs could be performed by the detection of gold element contents <i>via</i> inductively coupled plasma mass spectroscopy (ICP-MS) detection. ICP-MS results revealed that after 3 days exposure of monodispersed NPs (100 nm, 0.2 mg L<sup>-1</sup>), the digestive gland accumulated 86.7% of whole-body NPs followed by gill (5.2%), mantle (5.1%), foot (1.3%), exhalant siphon (1.1%), and adductor (0.6%). Upon 11 days depuration, 98.7% of NPs in the digestive gland were excreted, whereas the clearance ratios in other organs were much lower. NP aggregates (around 1.5 μm) demonstrated similar distribution and clearance trends to the monodispersed ones. However, the accumulation amount in each organ was 15.2% to 77.6% lower. Surface adherence and passive ingestion routes resulted in NP accumulation, which contributed to the comparable NP abundance in these organs. Additionally, boiling treatment (mimicking a cooking process) did not decrease the NP amount in these organs. This work provided a dual-mode and quantitative analysis protocol for NPs for the first time, and suggested the risk of NP uptake by humans <i>via</i> bivalve seafood diets.

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