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April 10, 2026Environmental Science Nano0 citations

Divergent impacts of antibiotics on ferrihydrite biotransformation by Shewanella oneidensis : electron transfer regulation and iron redox cycling

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XLXinyue LiCentral South UniversityJCJie ChenChongqing University of Posts and TelecommunicationsXCXi ChenChongqing University of Posts and Telecommunications

Key Points

  • This research examines how different antibiotics affect the biotransformation of ferrihydrite by Shewanella oneidensis, focusing on electron transfer.
  • Investigated the role of antibiotics in electron transfer processes.
  • Examined the conversion of ferrihydrite to different iron minerals like magnetite and goethite.
  • Analyzed the electron flux and redox reactions in the presence of specific antibiotics.
  • Sulfamethoxazole (SMX) enhanced electron flow and facilitated the conversion of ferrihydrite to magnetite.
  • Chloramphenicol (CAP) competed for electrons, resulting in the trapping of ferrihydrite as goethite.

Abstract

Antibiotics mediate/compete for electrons, coupling degradation with Fe redox and controlling mineral pathways. SMX promotes electron flux and the conversion of Fh to magnetite; CAP, however, competes for electrons and traps Fh as goethite.

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Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/69d896166c1944d70ce07562https://doi.org/10.1039/d5en01195g
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