A Spin‐Engineered Nanozyme Overcomes the Activity‐Selectivity Trade‐Off for Sustainable Adhesive Production From Lignin Biomass Conversion
スピン制御ナノザイムによるリグニン由来の持続可能接着剤製造 (AI 翻訳)
Fan Kelong
🤖 gxceed AI 要約
日本語
本研究は、銅を中心とする2次元MOFナノザイムのスピン状態を精密制御し、天然ラッカーゼを凌駕する活性を持つ触媒を開発した。これをリグニンの選択的分解に用い、フェノール性水酸基リッチなフラグメントを経て、ホルムアルデヒドを使わない高性能ナノリグニン接着剤を創製。商業フェノール樹脂を超える剪断強度を示し、持続可能な接着剤製造とバイオマス利活用に道を拓く。
English
This study introduces a spin-engineered 2D MOF nanozyme that outperforms natural laccase, enabling selective lignin depolymerization into phenolic fragments. These are converted into a formaldehyde-free nanolignin-based epoxy adhesive with shear strength exceeding commercial phenolic resins. The work provides a novel pathway for biomass valorization and sustainable adhesive production.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
バイオマス由来化学品と脱ホルムアルデヒド接着剤は、日本のグリーン成長戦略やカーボンニュートラル目標に合致する技術開発の方向性を示す。ただし、実用化にはスケールアップやLCAに基づく環境優位性の検証が求められる。
In the global GX context
This paper contributes to global biomass valorization and circular-economy efforts by offering a renewable, formaldehyde-free adhesive route, relevant to decarbonizing materials and reducing hazardous emissions in manufacturing.
👥 読者別の含意
🔬研究者:Offers a new design principle linking spin-state modulation to enzyme-mimetic activity for lignin depolymerization.
🏢実務担当者:High-performance biobased adhesive without formaldehyde could interest adhesive and composite wood product manufacturers.
📄 Abstract（原文）
Lignin, a major component of plant cell walls, is the most abundant source of natural aromatic polymers. Efficient production of its valuable degradation products requires highly selective catalysts. This study introduces a spin-statemodulated nanozyme system for precise lignin depolymerization into targeted biobased chemicals. Precise copper spin state control in two-dimensional (2D) copper-based metal organic framework (MOF) nanozymes, achieved via redox treatment and ligand exchange modulation, replicates natural laccase multicopper center spin synergy. Integrated experiments and theory reveal a volcano-shaped spin state-activity correlation, enabling synthesis of optimized nanozyme Cu(OH)2BDC-LA-OAc (COHBLO). This material demonstrates exceptional laccase-mimicking activity, with a peak reaction rate 70 times higher than natural laccase and a 5.14-fold specific activity increase. Through laccase-like catalysis, it selectively cleaves lignin 𝜷-O-4 linkages, directionally yielding fragments rich in phenolic hydroxyl groups. Their efficient reaction with epoxy groups produces a nanolignin-based epoxy adhesive. Featuring a three-dimensional cross-linked network, this adhesive delivers superior bonding under varied conditions. Its shear strength significantly surpasses commercial phenolic resins while eliminating conventional adhesive formaldehyde emissions. This study advances 2D MOF nanozyme design and establishes an integrated pathway from controlled lignin depolymerization to high-performance adhesive production, providing key theoretical and practical foundations for biomass valorization and sustainable adhesive development.
🔗 Provenance — このレコードを発見したソース
- scidb https://doi.org/10.57760/sciencedb.44765first seen 2026-08-01 07:34:22
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