| Autor: |
Nekvapil, F., Brezestean, I., Glamuzina, Branko, Tomšić, Sanja., Barbu-Tudoran, L., Chis, V., Cinta Pinzaru, S. |
| Přispěvatelé: |
Florescu, Monica, Raicu, Valerică, Turcu, Ioan |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Popis: |
Bio-inspired materials are an emerging field of research and have received increasing scientific interest. Such materials have superior mechanical, optical or other advantageous properties, aimed for various biocomposite applications. Among promising candidates are the cuticles of insects and crustaceans. In this paper we present a comprehensive structural study of marine crustacean Squilla mantis cuticle. Molecular information on the cuticle composition was obtained using Raman spectroscopy (RS), ultrastructure was imaged using high resolution scanning electron microscopy (HR-SEM), and elemental spectroscopy and mapping was achieved using electron diffraction x-ray spectroscopy (EDX). Telson cuticle is composed mainly of amorphous calcium carbonate (ACC), with inclusions of magnesian ACC and calcium phosphate. Claw has similar composition, however, it is reinforced with higher levels of phosphates and fluoride. Cross-section of the telson cuticle exhibits a sandwich-like structure: outermost and innermost layers are hardened by calcite and phosphate, while the middle part is hollow and criss-crossed with organic fibers. The claw featured mineralised cuticle rich in P and F with organic matrix filling the space inside the conical shell. Additionally, we investigated and identified carotenoid pigment and carotenoid-protein complexes on the surface of the telson cuticle. We propose S. mantis cuticle as a novel biocomposite with embedded antioxidant capacity via carotenoids as well as a source of valuable compounds like chitin and carotenoids. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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