Ecological nanosilver-based colours were biosynthesised from the heartwood of European yew (Taxus baccata) trees for the dyeing of flax woven fabrics through the implementation of in situ synthesis protocols. The produced lighter brown yellow to darker brown-yellow coloured nanosilver particles on flax woven fabrics were characterised in terms of morphological observations, metallic compositions, elemental mapping, chemical interactions, the presence of silver nanoparticle (AgNP) concentrations and colour characteristics with associated performances. The presence of AgNPs was clearly observed by morphological studies of the coloured substrates. Quantitative analysis of the products also confirmed the significant presence of AgNPs. The results demonstrate that the uniform dispersions and strong attachments of AgNPs in cellulosic flax woven fabrics are due to surface plasmon resonance characteristics. The incorporation of different concentrations of metallic AgNPs plays a significant role in producing versatile colour appearances on flax woven textiles with improved colour durability. The overall results offer new routes for sustainable structural colourants in the industrial dyeing of cellulosic materials.

中文翻译：

---

使用红豆杉心材介导的纳米银对亚麻机织物进行着色

从欧洲红豆杉（ Taxus baccata）的心材生物合成生态纳米银基颜色) 通过实施原位合成协议对亚麻机织物进行染色。在亚麻机织织物上产生的浅棕黄色至深棕黄色纳米银颗粒在形态观察、金属成分、元素映射、化学相互作用、银纳米颗粒 (AgNP) 浓度的存在和颜色特征以及相关性能方面进行了表征。通过有色底物的形态学研究清楚地观察到 AgNPs 的存在。产品的定量分析也证实了 AgNPs 的显着存在。结果表明，AgNPs 在纤维素亚麻机织物中的均匀分散和强附着是由于表面等离子体共振特性。不同浓度的金属 AgNPs 的掺入对于在亚麻机织纺织品上产生多种颜色外观具有重要作用，并提高了颜色的耐久性。总体结果为纤维素材料工业染色中的可持续结构着色剂提供了新途径。