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Fractal structures and silica films formed by the Treignac water on inert and biological surfaces
Nanoscale Advances ( IF 4.6 ) Pub Date : 2020-08-12 , DOI: 10.1039/d0na00377h
Agnès Smith 1 , Fatima Zahra Abir 1 , Youssef El Hafiane 1 , Yann Launay 1 , Céline Faugeron-Girard 2 , Vincent Gloaguen 2 , Thierry Devers 3 , Anaïs Raynaud 4 , Charlotte Moine 4 , Jean Sainte-Laudy 5 , Thibaud Latour 6 , Jean-Francois Hausman 7 , Gea Guerriero 7
Affiliation  

The Treignac water is a natural mineral water containing mainly orthosilicic acid. On inert substrates, it forms a silica film with fractal structures which cannot be reproduced in laboratory-reconstituted water. These structures form by condensation of orthosilicic acid monomers, following the Witten–Sander model of diffusion-limited aggregation. On biological surfaces, such as tomato leaves, the Treignac water forms a silica film with a different morphology and devoid of fractal structures. The filmogenic properties of this natural mineral water are here discussed in the context of crop protection, as the silica film can provide a barrier and a platform for the immobilization of elicitors of plant defense responses.

中文翻译:


Treignac 水在惰性和生物表面上形成的分形结构和二氧化硅薄膜



Treignac水是一种主要含有原硅酸的天然矿泉水。在惰性基质上,它形成具有分形结构的二氧化硅薄膜,该结构无法在实验室重构水中再现。这些结构是由原硅酸单体缩合形成的,遵循扩散限制聚集的 Witten-Sander 模型。在番茄叶等生物表面上,Treignac 水形成了一层具有不同形态且缺乏分形结构的二氧化硅薄膜。本文在作物保护的背景下讨论了这种天然矿泉水的成膜特性,因为二氧化硅膜可以为固定植物防御反应的诱导子提供屏障和平台。
更新日期:2020-09-16
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