首页> 外文期刊>Journal of Materials Research >Nanoscale control of silica morphology and three-dimensional structure during diatom cell wall formation
【24h】

Nanoscale control of silica morphology and three-dimensional structure during diatom cell wall formation

机译:硅藻细胞壁形成过程中二氧化硅形态和三维结构的纳米尺度控制

获取原文
获取原文并翻译 | 示例
           

摘要

We present a unique approach combining biological manipulation with advanced imaging tools to examine silica cell wall synthesis in the diatom Thalassiosira pseudonana. The innate capabilities of diatoms to form complex 3D silica structures on the nano- to micro-scale exceed current synthetic approaches because they use a fundamentally different formation process. Understanding the molecular details of the process requires identifying structural intermediates and correlating their formation with genes and proteins involved. This will aid in development of approaches to controllably alter structure, facilitating the use of diatoms as a direct source of nanostructured materials. In T. pseudonana, distinct silica morphologies were observed during formation of different cell wall substructures, and three different scales of structural organization were identified. At all levels, structure formation correlated with optimal design properties for the final product. These results provide a benchmark of measurements and new insights into biosilicification processes, potentially also benefiting biomimetic approaches.
机译:我们提出了一种独特的方法,将生物操纵与先进的成像工具相结合,以检查硅藻Thalassiosira pseudonana中的二氧化硅细胞壁合成。硅藻在纳米级到微米级形成复杂的3D二氧化硅结构的先天能力超过了当前的合成方法,因为它们使用的是根本不同的形成过程。了解该过程的分子细节需要确定结构中间体,并将其形成与所涉及的基因和蛋白质相关联。这将有助于开发可控地改变结构的方法,从而有助于将硅藻用作纳米结构材料的直接来源。在假单胞菌中,在形成不同的细胞壁亚结构的过程中观察到了独特的二氧化硅形态,并鉴定了三种不同的结构组织规模。在各个层面上,结构形成与最终产品的最佳设计特性相关。这些结果为生物硅化过程提供了测量基准和新见识,也可能使仿生方法受益。

著录项

  • 来源
    《Journal of Materials Research》 |2006年第10期|p.2689-2698|共10页
  • 作者

    Mark Hildebrand; Evelyn York;

  • 作者单位

    Jessica I. Kelz Scripps Institution of Oceanography, University of California-San Diego, La Jolla, California 92093-0202;

  • 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 工程材料学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号