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Bioengineered Protein Stabilized Perovskite Nanoplates in Polar Solvents.

Emma H Massasa1, Oren Bachar2, Arad Lang1

  • 1Department of Materials Science and Engineering, Technion - Israel Institute of Technology, 3200003 Haifa, Israel.

Nano Letters
|March 8, 2026
PubMed
Summary

Stable protein 1 (SP1) protects perovskite nanoparticles from degradation in polar solvents. This bioinspired approach enhances stability for photocatalysis applications.

Keywords:
Bioengineered protein scaffoldsBiotic-abiotic interfaceColloidal synthesisLead halide perovskitesNanomaterialsProtein-templated nanocrystalsStability

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biotechnology

Background:

  • Perovskite nanoparticles offer excellent optoelectronic properties for photocatalysis.
  • Their ionic lattice structure leads to instability in polar solvents, hindering aqueous applications.

Purpose of the Study:

  • To develop a method for stabilizing perovskite nanoparticles in polar media.
  • To preserve the optoelectronic functionality of perovskites using a bioinspired approach.

Main Methods:

  • Utilized stable protein 1 (SP1) as a bioinspired capping layer.
  • Synthesized perovskite nanoplates using bioengineered SP1 and its derivatives.
  • Screened proteins for optimal stability and surface properties in organic solvents.

Main Results:

  • SP1 effectively protected perovskite nanoparticles from polar degradation.
  • Synthesized perovskite nanoplates exhibited tunable quantum confinement and stability in isopropanol.
  • Protein surface characteristics (amine/carboxylate distribution) were crucial for nanoplate formation and stability.

Conclusions:

  • Bioinspired protein capping layers can enhance the stability of perovskite nanoparticles in polar media.
  • Protein-stabilized perovskites show superior spectroscopic stability, enabling future solution-phase biocatalytic systems.