Chemical mimicry: hierarchical 1D TiO2@ZrO2 core-shell structures reminiscent of sponge spicules by the synergistic effect of silicatein-α and silintaphin-1.
Chemical mimicry: hierarchical 1D TiO2@ZrO2 core-shell structures reminiscent of sponge spicules by the synergistic effect of silicatein-α and silintaphin-1.
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化学模拟:通过硅酸盐-α和silintaphin-1的协同作用,分层的一维TiO2@ZrO2核壳结构让人想起海绵骨针。
DOI:
10.1021/la200066q
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
W. Tremel
中科院分区:
文献类型:
--
作者:
R. André;Muhammad Tahir;T. Link;F. Jochum;U. Kolb;P. Théato;R. Berger;M. Wiens;H. Schröder;W. Müller;W. Tremel
In nature, mineralization of hard tissues occurs due to the synergistic effect of components present in the organic matrix of these tissues, with templating and catalytic effects. In Suberites domuncula, a well-studied example of the class of demosponges, silica formation is mediated and templated by an axial proteinaceous filament with silicatein-α, one of the main components. But so far, the effect of other organic constituents from the proteinaceous filament on the catalytic effect of silicatein-α has not been studied in detail. Here we describe the synthesis of core-shell TiO(2)@SiO(2) and TiO(2)@ZrO(2) nanofibers via grafting of silicatein-α onto a TiO(2) nanowire backbone followed by a coassembly of silintaphin-1 through its specifically interacting domains. We show for the first time a linker-free, one-step funtionalization of metal oxides with silicatein-α using glutamate tag. In the presence of silintaphin-1 silicatein-α facilitates the formation of a dense layer of SiO(2) or ZrO(2) on the TiO(2)@protein backbone template. The immobilization of silicatein-α onto TiO(2) probes was characterized by atomic force microscopy (AFM), optical light microscopy, and high-resolution transmission electron microscopy (HRTEM). The coassembly of silicatein-α and silintaphin-1 may contribute to biomimetic approaches that pursue a controlled formation of patterned biosilica-based biomaterials.
影响因子:
14
作者:
M. Wiens;M. Bausen;F. Natalio;T. Link;U. Schlossmacher;W. Müller
通讯作者:
M. Wiens;M. Bausen;F. Natalio;T. Link;U. Schlossmacher;W. Müller
影响因子:
4.8
作者:
Schröder, HC;Boreiko, A;Müller, WEG
通讯作者:
Müller, WEG
影响因子:
3.6
作者:
Müller, WEG;Rothenberger, M;Schröder, H
通讯作者:
Schröder, H