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Experimental and Computational Investigation of Surface-Responsive Riboflavin-Based Self-Assembled Systems.

Ruth Aizen1, Thangavel Vijayakanth1, Sarah Guerin2

  • 1The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|September 16, 2025
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Summary
This summary is machine-generated.

Researchers explored riboflavin (vitamin B2) self-assembly for functional materials. They discovered adaptable metabolite crystals with unique surface-responsive morphologies, offering insights for bio-inspired device applications.

Keywords:
H‐bondingRiboflavinSelf‐assemblymechanical propertiesmetabolites

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Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Crystallography

Background:

  • Metabolites like amino acids, nucleobases, and vitamins are promising for sustainable functional materials due to biocompatibility and low cost.
  • Riboflavin (vitamin B2) forms optically active structures, but its packing and function are not fully understood.
  • Existing examples showcase metabolite potential in devices like nanogenerators and transistors.

Purpose of the Study:

  • To investigate the bio-inspired self-assembly of riboflavin.
  • To uncover potential device applications of riboflavin self-assembly.
  • To characterize a newly discovered riboflavin co-crystal and its properties.

Main Methods:

  • Crystallography
  • Microscopy
  • Mechanical experiments
  • Atomistic molecular modeling
  • Surface characterization on copper, mica, and silicon substrates.

Main Results:

  • Discovery and characterization of a novel riboflavin co-crystal.
  • Demonstration of pronounced surface responsiveness leading to distinct micron-scale morphologies (branched, twisted, serrated).
  • Confirmation of substrate-templated structure formation through computational and experimental analysis.
  • Attribution of shape adaptability to the crystal's low Young's modulus and lattice flexibility.

Conclusions:

  • Riboflavin self-assembly yields adaptable crystals with substrate-dependent morphologies.
  • The crystal's mechanical responsiveness is linked to its molecular organization and lattice flexibility.
  • This study advances understanding of bio-inspired crystallization for potential technological applications.