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Updated: Jul 19, 2025

Spatiotemporal Control of Protein Activity through Optogenetic Allosteric Regulation
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Genetically Encoded Oligomerization for Protein-Based Lighting Devices.

Marta Patrian1, Mattia Nieddu1, Jesús A Banda-Vázquez1

  • 1Chair of Biogenic Functional Materials, Technical University of Munich, Schulgasse, 22, 94315, Straubing, Germany.

Advanced Materials (Deerfield Beach, Fla.)
|August 12, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed a protein oligomerization strategy to create stable, bio-functional optoelectronic materials. This approach enhances protein stability in devices, enabling high-performance, sustainable bio-optoelectronic applications.

Keywords:
bio-hybrid light-emitting diodesengineered fluorescent proteinsoligomerizationorganic solvent stabilityprotein-based lighting

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Area of Science:

  • Bio-optoelectronics
  • Materials Science
  • Protein Engineering

Background:

  • Proteins offer sustainable, bio-functional alternatives for optoelectronics, but native activity is lost in harsh device environments.
  • Organic solvents, interfaces, and stress conditions compromise protein function in traditional optoelectronic fabrication and operation.

Purpose of the Study:

  • To develop a strategy for enhancing protein stability and function within optoelectronic devices.
  • To enable the integration of proteins into water-free polymer-based materials for sustainable optoelectronics.
  • To demonstrate the performance of protein-based optoelectronic components compared to native proteins.

Main Methods:

  • Genetically-encoded macro-oligomerization strategy to promote stable protein-protein interactions.
  • Electrostatic control of macro-oligomer size via ionic strength.
  • Fabrication of protein-based light-emitting diodes (LEDs) using engineered protein macro-oligomers.

Main Results:

  • Achieved protein stabilities over months in organic solvents and under stress conditions.
  • Demonstrated high versatility with arbitrary proteins via the oligomerization strategy.
  • Fabricated rainbow- and white-emitting protein-based LEDs with significantly enhanced device stability (up to 100 hours) and maintained efficiency.

Conclusions:

  • The protein macro-oligomerization strategy effectively bridges biological systems and materials for bio-optoelectronics.
  • This approach overcomes limitations of native protein activity loss in device fabrication and operation.
  • The developed method offers a pathway to high-performance, stable, and sustainable protein-based optoelectronic devices, particularly for lighting applications.