低温电子断层扫描揭示壳聚糖在仿生硅化中的模板效应。
Cryogenic electron tomography reveals the template effect of chitosan in biomimetic silicification.
机构信息
Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Advanced Materials Laboratory, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
出版信息
Chem Commun (Camb). 2010 Mar 14;46(10):1703-5. doi: 10.1039/b922670b. Epub 2010 Feb 5.
Chitosan (CS) can mediate the formation of spherical, tabulate, and unique starfruit-like silica in the presence of phosphate ions (Pi). CryoTEM and cryoET were used to examine the CS aggregates in the hydrated state. 3D starfruit-like CS/Pi aggregates were reconstructed, which unambiguously confirmed the templating effect of CS/Pi in biomimetic silicification.
壳聚糖（CS）在存在磷酸盐离子（Pi）的情况下可以介导球形、平板形和独特的星形果状二氧化硅的形成。使用冷冻透射电子显微镜（CryoTEM）和冷冻电子断层扫描（cryoET）来检查水合状态下的 CS 聚集物。重建了 3D 星形果状 CS/Pi 聚集物，这明确证实了 CS/Pi 在仿生硅化中的模板效应。
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