期刊
ACS APPLIED MATERIALS & INTERFACES
卷 2, 期 8, 页码 2269-2281出版社
AMER CHEMICAL SOC
DOI: 10.1021/am1003365
关键词
plasma-enhanced chemical vapor deposition; titania nanoparticles; histidine coatings; conformal modification
资金
- Air Office of Scientific Research [FA9550-08-1-0446, FA9550-09-1-0162]
- Air Force Research Lab
- NDSEG Fellowship
We report on the conformal synthesis of ultrathin films from the aminoacid histidine on flat silicon substrates and 3D periodic polymer structures via plasma enhanced chemical vapor deposition. We demonstrate the efficient utilization of this functional amino acid nanocoating for the formation of individual titania nanoparticles with dimensions from 2 to 15 nm depending upon reduction conditions. The titania nanoparticles were grown directly on histidine-functionalized planar and 3D polymer substrates by a wet-chemistry method that showed uniform surface coverage that reached approximately 75%. This approach demonstrates the potential for modifying the optical properties of periodic porous polymeric structures via direct conformal growth of titania nanoparticles.
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