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Assembly and Formation of Biomorphic Tin Dioxide by a Biomimetic Sol–Gel Approach Involving Glycoprotein
Author(s) -
Dong Qun,
Su Huilan,
Cao Wei,
Zhang Di,
Guo Qixin,
Zhang Fangying
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200601176
Subject(s) - chemistry , tin dioxide , eggshell membrane , nanomaterials , macromolecule , calcination , membrane , sol gel , chemical engineering , tin , nanotechnology , substrate (aquarium) , yield (engineering) , nanocrystal , biomaterial , organic chemistry , catalysis , biochemistry , materials science , oceanography , geology , engineering , metallurgy
Three diverse layers of eggshell membrane (ESM) were introduced in a biogenic sol–gel technique for the synthesis of hierarchical SnO 2 nanomaterials with corresponding configurations. Typically, the biomorphic replication of the interwoven inner eggshell membrane was systematically investigated by controlling synthesis conditions such as pH value, dipping time, and calcination temperature. The as‐prepared SnO 2 tubes consisting of interconnected 5‐nm nanocrystallite units were successfully interwoven into ESM‐morphic films. Herein, the biomaterial ESM served both as the physical substrate and the functional macromolecule template to realize the precision replication, by the interactions between ESM macromolecules (containing carboxyl, hydroxy, amino groups, etc.) and Sn colloid ingredients. Moreover, some biomacromolecules also acted as the surfactant to yield small‐scaled and well‐distributed SnO 2 nanocrystallites based on the strong bondage of short‐chained amino acids within ESM glycoprotein with SnO 2 nuclei. This technique can be attributed to a biomimetic sol–gel process and is widely applicable to the synthesis of other functional material systems. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)