Monodispersed Lignin Colloidal Spheres with Tailorable Sizes for Bio-Photonic Materials,Small

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Monodispersed Lignin Colloidal Spheres with Tailorable Sizes for Bio-Photonic Materials
Small ( IF 13.0 ) Pub Date : 2022-04-07 , DOI: 10.1002/smll.202200671
Jingyu Wang ₁ , Wenhao Chen ₁ , Dongjie Yang ₁ , Zhiqiang Fang ₁ , Weifeng Liu ₁ , Ting Xiang ₁ , Xueqing Qiu _{1,

2}

Affiliation

Lignin colloidal spheres (LCSs) are promising biomaterials for application in drug storage and delivery, pollutant adsorption, and ultraviolet protection due to their biocompatibility, amphiphilicity, and conjugated structure. However, wide size distribution of LCSs greatly limits their performances, especially in many precise and advanced applications. Herein, the fabrication of monodispersed LCSs with tailorable sizes ranging from the nanoscale to microscale is reported. Lignin raw materials are first fractionated by solvent extraction, and then the lignin fraction is used to fabricate monodispersed LCSs by solvent/antisolvent self-assembly. The underlying mechanism for the formation of monodispersed LCS is primarily ascribed to the improved homogeneity of long-range intermolecular forces, especially the electrostatic forces and hydrophobic forces, between lignin molecules. Moreover, by manipulating the short-range order of LCSs, an innovative application of lignin as bio-photonic materials with tunable structural colorations (e.g., red, green, or blue) is demonstrated. This work not only provides deep insight and an effective strategy to eliminate the serious inhomogeneity of LCSs, but also makes lignin resources have great potential as biodegradable and biocompatible photonic materials in diverse advanced optical application fields such as photonic devices, anti-counterfeiting labels, and structural color pigments.

中文翻译：

用于生物光子材料的具有可定制尺寸的单分散木质素胶体球

木质素胶体球（LCSs）由于其生物相容性、两亲性和共轭结构，是一种很有前途的生物材料，可用于药物储存和输送、污染物吸附和紫外线防护。然而，LCS 的宽尺寸分布极大地限制了它们的性能，特别是在许多精密和先进的应用中。在此，报道了具有从纳米级到微米级的可定制尺寸的单分散 LCS 的制造。木质素原料首先通过溶剂萃取进行分馏，然后将木质素馏分通过溶剂/反溶剂自组装制备单分散 LCS。形成单分散 LCS 的潜在机制主要归因于长程分子间力的改善均匀性，尤其是木质素分子之间的静电力和疏水力。此外，通过操纵 LCS 的短程有序，展示了木质素作为具有可调结构颜色（例如，红色、绿色或蓝色）的生物光子材料的创新应用。这项工作不仅为消除 LCS 严重的不均匀性提供了深刻的见解和有效的策略，而且使木质素资源在光子器件、防伪标签等多种先进光学应用领域中作为可生物降解和生物相容的光子材料具有巨大潜力。结构色颜料。或蓝色）显示。这项工作不仅为消除 LCS 严重的不均匀性提供了深刻的见解和有效的策略，而且使木质素资源在光子器件、防伪标签等多种先进光学应用领域中作为可生物降解和生物相容的光子材料具有巨大潜力。结构色颜料。或蓝色）显示。这项工作不仅为消除 LCS 严重的不均匀性提供了深刻的见解和有效的策略，而且使木质素资源在光子器件、防伪标签等多种先进光学应用领域中作为可生物降解和生物相容的光子材料具有巨大潜力。结构色颜料。

更新日期：2022-04-07

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