کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5760313 1623780 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulation of colloidal self-assembly of super-hydrophobic arachnid cerotegument structures
ترجمه فارسی عنوان
شبیه سازی عددی از خودمجموعه کلوئیدی ساختارهای سراتوژئوتروپراکتیک فوق العاده هیدروفوبیک
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
چکیده انگلیسی


- Certain arachnids exhibit coatings of their exoskeleton consisting of globular structures with complex surface.
- The coatings were shown to be formed by a multi-component colloidal secretion that self-assembles on the body surface.
- We study the process of cerotegument self-assembly from a theoretical point of view. We show that slight changes of the parameters lead to the morphologies that are highly similar to the ones observed in the nature.
- These results are for the fabrication of novel surface coatings by colloidal lithography.

Certain arachnids exhibit complex coatings of their exoskeleton, consisting of globular structures with complex surface features. This, so-called, cerotegument is formed by a multi-component colloidal secretion that self-assembles and cures on the body surface, and leads to high water repellency. Previous ultrastructural studies revealed the involvement of different glandular cells that contribute different components to the secretion mixture, but the overall process of self-assembly into the complex regular structures observed remained highly unclear. Here we study this process from a theoretical point of view, starting from the so-called Tammes-problem. We show that slight changes of simple parameters lead to a variety of morphologies that are highly similar to the ones observed in the species specific cerotegument structures of whip-spiders. These results are not only important for our understanding of the formation of globular hierarchical structures in nature, but also for the fabrication of novel surface coatings by colloidal lithography.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Theoretical Biology - Volume 430, 7 October 2017, Pages 1-8
نویسندگان
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