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首页> 外文期刊>Journal of Crystal Growth >Egg-white-mediated crystallization of calcium carbonate
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Egg-white-mediated crystallization of calcium carbonate

机译：蛋清介导的碳酸钙结晶

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摘要

In this paper, shape-controlled crystallization and self-assembly of CaCO_3 hierarchical architectures has been successfully synthesized via the gas diffusion method in egg white solution. Stepwise growth and assembly of CaCO_3 nanoparticles has been observed from transition of an amorphous CaCO_3 to the crystallization and stabilization of platelet-like nanoparticles and eventually, the wool sphere-like CaCO_3 hierarchical architectures assembling of nanoparticles. The proteins binding on nanoparticle surfaces proved to regulate the growth of nanoparticles and subsequent assembly into hierarchical superstructures via electrostatic and dipole interactions. The samples were characterized by scanning electron microscopy (SEM), powder X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and nano mechanical Tester. The measured average elastic modulus and the hardness of calcium carbonate hybrid materials were 5.32 GPa and 0.1886 GPa by the nano-indenter test, respectively.
机译：本文通过气体扩散法在蛋清溶液中成功合成了CaCO_3分层结构的形状控制结晶和自组装。从无定形CaCO_3过渡到片状纳米颗粒的结晶和稳定化，最终观察到CaCO_3纳米颗粒的逐步生长和组装，并最终形成了纳米颗粒的羊毛球状CaCO_3分层结构。事实证明，结合在纳米颗粒表面的蛋白质可调节纳米颗粒的生长，并随后通过静电和偶极相互作用将其组装成分层的超结构。通过扫描电子显微镜（SEM），粉末X射线衍射（XRD），傅立叶变换红外光谱（FTIR），透射电子显微镜（TEM）和纳米机械测试仪对样品进行表征。通过纳米压痕试验，测得的碳酸钙杂化材料的平均弹性模量和硬度分别为5.32GPa和0.1886GPa。

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  • 来源
    《Journal of Crystal Growth》 |2012年第2012期|217-224|共8页
  • 作者

    Liang Zheng; Yanli Hu; Yongjun Ma; Yong Zhou; Fude Nie; Xun Liu; Chonghua Pei;

  • 作者单位

    State Key Laboratory Cultivation Base for Nonmetai Composites and Functional Materials, Southwest University of Science and Technology (SWUST), Mianyang 621010 China;

    Eco-materials and Renewable Energy Research Center (ERERC), School of Physics, National Lab of Solid State Micwstructure, ERERC, Nanjing University, Nanjing 210093, P R China;

    State Key Laboratory Cultivation Base for Nonmetai Composites and Functional Materials, Southwest University of Science and Technology (SWUST), Mianyang 621010 China;

    Eco-materials and Renewable Energy Research Center (ERERC), School of Physics, National Lab of Solid State Micwstructure, ERERC, Nanjing University, Nanjing 210093, P R China;

    Institute of Chemical Materials, CAEP, Mianyang 621900, China;

    State Key Laboratory Cultivation Base for Nonmetai Composites and Functional Materials, Southwest University of Science and Technology (SWUST), Mianyang 621010 China;

    State Key Laboratory Cultivation Base for Nonmetai Composites and Functional Materials, Southwest University of Science and Technology (SWUST), Mianyang 621010 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A1. Biomaterials; A1. crystallization; A1. 'wool sphere-like' structure; B1. calcium carbonate; B1. egg white;

    机译：A1。生物材料;A1。结晶;A1。 “羊毛球状”结构;B1。碳酸钙B1。蛋白;

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