Protein biomineralized nanoporous inorganic mesocrystals with tunable hierarchical nanostructures

Xiang Fei, Wei Li, Zhengzhong Shao, Stefan Seeger, Dongyuan Zhao, Xin Chen

Research output: Contribution to journalArticleResearchpeer-review

45 Citations (Scopus)


Mesocrystals with the symmetry defying morphologies and highly ordered superstructures composed of primary units are of particular interest, but the fabrication has proved extremely challenging. A novel strategy based on biomineralization approach for the synthesis of hematite mesocrystals is developed by using silk fibroin as a biotemplate. The resultant hematite mesocrystals are uniform, highly crystalline, and porous nanostructures with tunable size and morphologies by simply varying the concentration of the silk fibroin and iron(III) chloride in this biomineralization system. In particular, we demonstrate a complex mesoscale biomineralization process induced by the silk fibroin for the formation of hematite mesocrystals. This biomimetic strategy features precisely tunable, high efficiency, and low-cost and opens up an avenue to access new novel functional mesocrystals with hierarchical structures in various practical applications
Original languageEnglish
Pages (from-to)15781-15786
Number of pages6
JournalJournal of the American Chemical Society
Issue number44
Publication statusPublished - 5 Nov 2014
Externally publishedYes

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