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Advanced strategies for enzyme-electrode interfacing in bioelectrocatalytic systems.

Hyeryeong Lee1, Stacy Simai Reginald2, J Shanthi Sravan1

  • 1School of Environment and Energy Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea; Research Center for Innovative Energy and Carbon Optimized Synthesis for Chemicals (inn-ECOSysChem), Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea.

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|December 14, 2024
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Summary

Protein engineering advances enzyme immobilization for better enzyme-electrode systems in bioelectrocatalysis. This improves biosensor sensitivity, biofuel cell performance, and enzyme-electrode sustainability for practical applications.

Keywords:
enzymatic electrocatalysisenzyme–electrode designimmobilizationinterfacial electron transferprotein engineering

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Area of Science:

  • Biotechnology and Bioengineering
  • Electrochemistry
  • Protein Engineering

Background:

  • Enzymatic electrochemical systems utilize biological machinery for electricity generation or biochemical synthesis.
  • Effective enzyme-electrode wiring is crucial for system performance.
  • Protein engineering and immobilization technologies have advanced significantly.

Purpose of the Study:

  • To provide guidelines for designing enzyme-electrodes based on electron transfer (ET) mechanisms.
  • To summarize recent advancements in enzyme immobilization technologies.
  • To highlight protein-engineering strategies for enhanced enzyme-electrode interfacing.

Main Methods:

  • Review of recent literature on enzyme immobilization and protein engineering.
  • Analysis of performance variables influenced by ET mechanisms.
  • Focus on protein-protein, protein-ligand, and protein-inorganic interactions.

Main Results:

  • Improved enzyme-electrode wiring leading to enhanced system performance.
  • Extended enzyme-electrode sustainability up to months.
  • Increased biosensor sensitivity and biofuel cell efficiency.
  • New benchmarks in bioelectrocatalysis turnover frequency.

Conclusions:

  • Protein engineering and advanced immobilization are key to optimizing enzymatic electrochemical systems.
  • Strategic protein design offers pathways for real-world applications.
  • Further research into protein-electrode interfaces will drive innovation.