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September 10, 2025Environmental Science & Technology

Adsorption and Protection of Environmental DNA (eDNA) on Polymer and Silica Surfaces

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Authors

RSRoman B. ScheferCPCélia PaolucciDMDenise M. Mitrano

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Overview

Systematic analysis reveals eDNA adsorption differences on plastics and silica, suggesting implications for aquatic environments.

Key Points

  • eDNA adsorption rates were highest on polyethylene terephthalate, with significant variability depending on ionic conditions.
  • The presence of divalent ions like Ca2+ significantly enhances eDNA adsorption through cation bridging.
  • Freshwater and seawater conditions affected the thickness and rigidity of eDNA adlayers, highlighting environmental impact.
  • eDNA adlayers showed susceptibility to degradation, prompting questions about their persistence and potential transfer in ecosystems.

Cite This Study

Schefer et al. (2025) studied this question.

synapsesocial.com/papers/68c1872d9b7b07f3a0611703https://doi.org/10.1021/acs.est.5c05439
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