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首页> 外文期刊>Nanotechnology >High ordered biomineralization induced by carbon nanoparticles in the sea urchin Paracentrotus lividus
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High ordered biomineralization induced by carbon nanoparticles in the sea urchin Paracentrotus lividus

机译：海胆Paracentrotus lividus中的碳纳米颗粒诱导的高度有序的生物矿化

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A surprising and unexpected biomineralization process was observed during toxicological assessment of carbon nanoparticles on Paracentrotus lividus (sea urchin) pluteus larvae. The larvae activate a process of defense against external material, by incorporating the nanoparticles into microstructures of aragonite similarly to pearl oysters. Aiming at a better understanding of this phenomenon, the larvae were exposed to increasing concentrations of carbon nanoparticles and the biomineralization products were analyzed by electron microscopy, x-ray diffraction and Raman spectroscopy. In order to evaluate the possible influence of Sp-CyP-1 expression on this biomineralization process by larvae, analyses of gene expression (Sp-CyP-1) and calcein labeling were performed. Overall, we report experimental evidence about the capability of carbon nanoparticles to induce an increment of Sp-CyP-1 expression with the consequent activation of a biomineralization process leading to the production of a new pearl-like biomaterial never previously observed in sea urchins.
机译：在Palcentrotus lividus（海胆）排卵幼虫上对碳纳米颗粒进行毒理学评估时，观察到了令人惊讶且出乎意料的生物矿化过程。通过将纳米颗粒掺入文石的微结构中，类似于珍珠贝，幼虫激活了防御外部物质的过程。为了更好地了解这种现象，将幼虫暴露于浓度不断增加的碳纳米颗粒中，并通过电子显微镜，x射线衍射和拉曼光谱分析生物矿化产物。为了评估幼虫Sp-CyP-1表达对该生物矿化过程的可能影响，进行了基因表达分析（Sp-CyP-1）和钙黄绿素标记。总体而言，我们报告了有关碳纳米颗粒诱导Sp-CyP-1表达增加的能力的实验证据，并随之激活了生物矿化过程，从而导致了新的珍珠状生物材料的生产，这种材料以前从未在海胆中观察到。

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