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Breakthrough in Nanoparticle Formation: Researchers Unveil New Method for Lignin-Based Nanoparticles

Strategic Insights

— 1 min read

Researchers at the Guangdong University of Technology have made a significant discovery in the field of nanotechnology, revealing a new method for producing self-assembled lignin nanoparticles (LNPs) using deep eutectic solvents (DESs). The team's innovative approach has the potential to revolutionize the production of lignin-based nanoparticles, which are essential for various industrial applications.

Key Takeaways:

  • The research developed a green, straightforward, and single-step approach to produce LNPs using acidic DESs, resulting in a significant size reduction of LNPs, with an average size approximately one-ninth of that produced by conventional solvent-exchange methods.
  • The DES method exhibited greater size reduction and compactness of LNPs compared to the tetrahydrofuran/HO solvent system, which favored offset-stacked configurations and hydrophobic interactions.
  • Molecular dynamics simulations revealed the critical role of molecular structure, intra/intermolecular π-π interactions, stacked conformations, and solvent-specific effects in determining the size and compactness of LNPs.
  • The research highlighted the possibility of regulating and controlling lignin assemblies through solvent parameters, offering new insights into the underlying mechanisms of LNP formation using DESs.

Statistics:

  • The LNPs obtained using the acidic DES method exhibited an average size approximately one-ninth of that produced by conventional solvent-exchange methods.
  • Molecular dynamics simulations simulated the dynamic behavior and configurational states of high-molar-mass lignin models (4,182 g mol) in aqueous solvent systems.
  • The DES stabilizes lateral-shifted configurations, promoting the formation of small and compact LNPs.
  • The tetrahydrofuran/HO solvent system favors offset-stacked configurations and hydrophobic interactions, leading to larger, spherical LNPs.

Sources:

  • NewsRx 2025, NewsRx LLC.
  • Lignin Dissolution and Direct Ultrasmall-Lignin-Nanoparticle Formation in Acidic and Alkaline Deep Eutectic Solvents: A Molecular-Level Insight. Angewandte Chemie International Edition, 2025.

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