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Microbial Bioremediation of Uranium

Microbial Bioremediation of Uranium

Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella,...

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Updated: Apr 12, 2026

Multi-analyte Biochip MAB Based on All-solid-state Ion-selective Electrodes ASSISE for Physiological Research

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Published on: April 18, 2013

Engineering Programmable Electroactive Living Materials for Highly Efficient Uranium Capture and Accumulation.

Feng-He Li^1,2,3, Zi-Han Liang¹, Hong Sun¹

¹CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China.

Environmental Science & Technology

|December 17, 2024

Summary

This summary is machine-generated.

Researchers developed programmable electroactive living materials (ELMs) for efficient uranium recovery. These engineered microbes offer a sustainable solution for nuclear energy fuel and environmental remediation of uranium contamination.

Keywords:

Shewanella oneidensis electroactive living materials (ELMs)exoelectrogenic species extracellular electron transfer reduction selectively uranium recovery

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Published on: June 21, 2015

Area of Science:

Environmental Science
Biotechnology
Nuclear Engineering

Background:

Uranium is vital for nuclear energy and sustainable transitions.
Limited resources and contamination risks necessitate advanced uranium recovery methods.

Purpose of the Study:

To develop a novel uranium recovery method using programmable electroactive living materials (ELMs).
To leverage engineered microbes for efficient capture, reduction, and accumulation of uranium.

Main Methods:

Utilized *Shewanella oneidensis* for extracellular electron transfer.
Engineered cells to express uranyl-binding proteins and reconfigured electron nanoconduits.
Incorporated biofilm-promoting circuits for enhanced cell interactions and structural integrity.

Main Results:

Achieved a 3.30-fold increase in current density and 3.15-fold increase in voltage output.
Demonstrated robust U(VI) capture, reduction, and accumulation with a capacity of 808.42 μmol/g.
Successfully assembled stable ELMs with enhanced electrogenic activity.

Conclusions:

ELMs offer a versatile, environmentally friendly solution for uranium recovery.
This approach highlights the potential of ELMs in sustainable environmental and energy technologies.