Particle number-based trophic transfer of gold nanomaterials in an aquatic food chain

Fazel Abdolahpur Monikh (), Latifeh Chupani, Daniel Arenas-Lago, Zhiling Guo, Peng Zhang, Gopala Krishna Darbha, Eugenia Valsami-Jones, Iseult Lynch, Martina G. Vijver, Peter M. Bodegom and Willie J.G.M. Peijnenburg
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Fazel Abdolahpur Monikh: Leiden University
Latifeh Chupani: University of South Bohemia in Ceske Budejovice
Daniel Arenas-Lago: University of Vigo, As Lagoas
Zhiling Guo: University of Birmingham, Edgbaston
Peng Zhang: University of Birmingham, Edgbaston
Gopala Krishna Darbha: Indian Institute of Science Education and Research Kolkata
Eugenia Valsami-Jones: University of Birmingham, Edgbaston
Iseult Lynch: University of Birmingham, Edgbaston
Martina G. Vijver: Leiden University
Peter M. Bodegom: Leiden University
Willie J.G.M. Peijnenburg: Leiden University

Nature Communications, 2021, vol. 12, issue 1, 1-12

Abstract: Abstract Analytical limitations considerably hinder our understanding of the impacts of the physicochemical properties of nanomaterials (NMs) on their biological fate in organisms. Here, using a fit-for-purpose analytical workflow, including dosing and emerging analytical techniques, NMs present in organisms are characterized and quantified across an aquatic food chain. The size and shape of gold (Au)-NMs are shown to control the number of Au-NMs attached to algae that were exposed to an equal initial concentration of 2.9 × 1011 particles mL−1. The Au-NMs undergo size/shape-dependent dissolution and agglomeration in the gut of the daphnids, which determines the size distribution of the NMs accumulated in fish. The biodistribution of NMs in fish tissues (intestine, liver, gills, and brain) also depends on NM size and shape, although the highest particle numbers per unit of mass are almost always present in the fish brain. The findings emphasize the importance of physicochemical properties of metallic NMs in their biotransformations and tropic transfers.

Date: 2021
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DOI: 10.1038/s41467-021-21164-w

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