材料科学
纳米复合材料
纤维素
纳米颗粒
结构着色
生物分子
纳米-
蒸发
彩虹色
复合数
液晶
石墨烯
纳米技术
复合材料
化学工程
光子晶体
光电子学
光学
物理
工程类
热力学
作者
Zhe Ling,Jie Chen,Xinyan Wang,Lupeng Shao,Chao Wang,Sheng Chen,Jiaqi Guo,Qiang Yong
标识
DOI:10.1016/j.carbpol.2022.119920
摘要
Exploration of functional materials based on sustainable and renewable biomolecules has been of much interest. Herein, nature-inspired photonic films were proposed by incorporation of bio-based lignin nanoparticles (LNPs) into chiral nematic cellulose crystals (CNCs). Evaporation induced self-assembly (EISA) formed oriented and layered structure of the nanocomposites iridescent films with enlarged helix pitches by intercalation of higher amounts of LNPs. Decreased crystallite sizes and expanding layer gaps indicated the homogeneous distribution and hydrophobic interactions between CNCs and LNPs. Distinguished UV absorption capabilities with over 90 % shielding capabilities in UVB region and increased hydrophobicity with the contact angle of 75° were achieved for the composite films due to the presence of hydrophobic lignin. The proposed optical films also showed outstanding cytocompatibility owing to all-natural components introduced into the materials, which may display great potentials in many fields such as stimuli sensing, anti-counterfeiting and wearable devices.
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