期刊
LANGMUIR
卷 25, 期 23, 页码 13284-13289出版社
AMER CHEMICAL SOC
DOI: 10.1021/la903106j
关键词
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资金
- German Federal Ministry of Education and Research (BMBF) [FKZ 03X5507]
An emerging nanofabrication technology is to synthesize nanoscale inorganic materials with narrow size distribution using biological systems, which are size-constrained, fairly robust, and easily removable. Apoferritin, a spherical and hollow protein complex, was subjected to atomic layer deposition of TiO2. The growth of TiO2 on the protein surface was investigated as a function of the precursor exposure and purge length. Thermal pretreatment and osmotic dehydration lead to controllable deposition both on the outer surface and within the inner cavity of apoferritin. Depending on the experimental conditions, either hollow spherical nanoparticles or core-shell nanoparticles comprising TiO2 were identified.
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