美國(guó)麻省理工學(xué)院科研人員7月26日說(shuō)，生活在塞內(nèi)加爾的一種魚(yú)的魚(yú)鱗堅(jiān)韌無(wú)比,，對(duì)研制新一代士兵防彈服具有重要參考價(jià)值,。
這種魚(yú)名為塞內(nèi)加爾多鰭魚(yú)，生活在當(dāng)?shù)卣訚芍?。成年塞?nèi)加爾多鰭魚(yú)身長(zhǎng)大約40厘米,，有多層魚(yú)鱗。
麻省理工學(xué)院科研人員發(fā)現(xiàn),，魚(yú)鱗厚度大約為萬(wàn)分之五米,，分為4層，每層結(jié)構(gòu)不同,?？蒲腥藛T對(duì)魚(yú)鱗進(jìn)行模擬撕咬試驗(yàn)，發(fā)現(xiàn)魚(yú)鱗能最大限度化解沖擊力,，有效保護(hù)魚(yú)鱗下面的軟組織不受傷害,。
麻省理工學(xué)院材料科學(xué)副教授克里斯廷·奧爾蒂斯說(shuō)，塞內(nèi)加爾多鰭魚(yú)魚(yú)鱗“結(jié)構(gòu)奇妙,、復(fù)雜”,，為研發(fā)新一代防彈服開(kāi)拓了思路。
相關(guān)研究7月27日發(fā)表在《自然—材料學(xué)》（Nature Materials）雜志上,。（生物谷Bioon.com）
生物谷推薦原始出處：
Nature Materials,，doi:10.1038/nmat2231，Benjamin J. F. Bruet,，Christine Ortiz
Materials design principles of ancient fish armour
Benjamin J. F. Bruet1,1, Juha Song1,1, Mary C. Boyce2 & Christine Ortiz1
Abstract
Knowledge of the structure–property–function relationships of dermal scales of armoured fish could enable pathways to improved bioinspired human body armour, and may provide clues to the evolutionary origins of mineralized tissues. Here, we present a multiscale experimental and computational approach that reveals the materials design principles present within individual ganoid scales from the 'living fossil' Polypterus senegalus. This fish belongs to the ancient family Polypteridae, which first appeared 96 million years ago during the Cretaceous period and still retains many of their characteristics. The mechanistic origins of penetration resistance (approximating a biting attack) were investigated and found to include the juxtaposition of multiple distinct reinforcing composite layers that each undergo their own unique deformation mechanisms, a unique spatial functional form of mechanical properties with regions of differing levels of gradation within and between material layers, and layers with an undetectable gradation, load-dependent effective material properties, circumferential surface cracking, orthogonal microcracking in laminated sublayers and geometrically corrugated junctions between layers.
