GSTDTAP  > 地球科学
DOI10.1126/science.aaj2156
Coherently aligned nanoparticles within a biogenic single crystal: A biological prestressing strategy
Polishchuk, Iryna1,2; Bracha, Avigail Aronhime1,2; Bloch, Leonid1,2,3,11; Levy, Davide1,2; Kozachkevich, Stas1,2; Etinger-Geller, Yael1,2; Kauffmann, Yaron1,2; Burghammer, Manfred3; Giacobbe, Carlotta3; Villanova, Julie3; Hendler, Gordon4; Sun, Chang-Yu5; Giuffre, Anthony J.5; Marcus, Matthew A.6; Kundanati, Lakshminath7; Zaslansky, Paul8; Pugno, Nicola M.7,9,10; Gilbert, Pupa U. P. A.5; Katsman, Alex1,2; Pokroy, Boaz1,2
2017-12-08
发表期刊SCIENCE
ISSN0036-8075
EISSN1095-9203
出版年2017
卷号358期号:6368页码:1294-1298
文章类型Article
语种英语
国家Israel; France; USA; Italy; Germany; England; Switzerland
英文摘要

In contrast to synthetic materials, materials produced by organisms are formed in ambient conditions and with a limited selection of elements. Nevertheless, living organisms reveal elegant strategies for achieving specific functions, ranging from skeletal support to mastication, from sensors and defensive tools to optical function. Using state-of-the-art characterization techniques, we present a biostrategy for strengthening and toughening the otherwise brittle calcite optical lenses found in the brittlestar Ophiocoma wendtii. This intriguing process uses coherent nanoprecipitates to induce compressive stresses on the host matrix, functionally resembling the Guinier-Preston zones known in classical metallurgy. We believe that these calcitic nanoparticles, being rich inmagnesium, segregate during or just after transformation from amorphous to crystalline phase, similarly to segregation behavior from a supersaturated quenched alloy.


领域地球科学 ; 气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000417254700056
WOS关键词PHOTORECEPTOR SYSTEM ; MOLLUSK SHELLS ; CALCITE ; FRACTURE ; INDENTATION ; ORIGIN ; GROWTH ; PHASE
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/197502
专题地球科学
资源环境科学
气候变化
作者单位1.Technion Israel Inst Technol, Dept Mat Sci & Engn, IL-32000 Haifa, Israel;
2.Technion Israel Inst Technol, Russel Berrie Nanotechnol Inst, IL-32000 Haifa, Israel;
3.European Synchrotron, CS 40220, F-38043 Grenoble 9, France;
4.Nat Hist Museum Los Angeles Cty, Los Angeles, CA 90007 USA;
5.Univ Wisconsin Madison, Dept Phys, Chem, Geosci, Madison, WI 53706 USA;
6.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA;
7.Univ Trento, Lab Bioinspired & Graphene Nanomech, Dept Civil Environm & Mech Engn, Via Mesiano 77, I-38123 Trento, Italy;
8.Charite Univ Med Berlin, Dept Restorat & Prevent Dent, Ctr Zahn Mund & Kieferheilkunde, D-14197 Berlin, Germany;
9.Queen Mary Univ London, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England;
10.Italian Space Agcy, Edoardo Amaldi Fdn, Ket Lab, Via Politecn Snc, I-00133 Rome, Italy;
11.Inst Technol Zurich, Ramistr 101, CH-8092 Zurich, Switzerland
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Polishchuk, Iryna,Bracha, Avigail Aronhime,Bloch, Leonid,et al. Coherently aligned nanoparticles within a biogenic single crystal: A biological prestressing strategy[J]. SCIENCE,2017,358(6368):1294-1298.
APA Polishchuk, Iryna.,Bracha, Avigail Aronhime.,Bloch, Leonid.,Levy, Davide.,Kozachkevich, Stas.,...&Pokroy, Boaz.(2017).Coherently aligned nanoparticles within a biogenic single crystal: A biological prestressing strategy.SCIENCE,358(6368),1294-1298.
MLA Polishchuk, Iryna,et al."Coherently aligned nanoparticles within a biogenic single crystal: A biological prestressing strategy".SCIENCE 358.6368(2017):1294-1298.
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