Coating materials, recombination

Recombination of Oxygen and Nitrogen Atoms on Silica and High-Temperature Coating Materials... 

The above results indicate that a requirement for water photolysis by Pt/Ti02 is to prevent the reverse reaction on Pt sites. Wagner and Somoijai8) successfully carried out gas-phase water photolysis by Pt/SrTi03-crystal coated with deliquescent basic materials. Their method is reasonable to suppress the reverse reaction, because a deliquescent material coated on a substrate absorbs a large amount of water to form a thin film of its aqueous solution. The film inhibits the reaction products to readsorb directly on the catalyst, while the products on the catalyst can escape to the gas phase by diffusion, it is very important that H2 and 02 can desorb from the catalyst surface to the gas phase without making bubbles, because if they desorb as bubbles then they would inevitably mix with each other in the growing process of bubbles and recombine on Pt sites. In addition, an aqueous basic solution would work as an electrolyte which enhances ion transfer in photoelectrochemical reactions. 

Although the amino acid sequence as well as the secondary structure of fibroin differs from those of spidroin, the fibers spun from these proteins, that is, silkworm silk and spider silk have comparable mechanical properties. These may be attributed to the structural characteristics, both at the molecular and filament level. The superior mechanical properties of silk-based materials, such as films, coatings, scaffolds, and fibers produced using reconstituted or recombinant silk proteins, are determined by their condensed structures. 

The coat proteins of plant viruses have been used as carrier molecules for presentation of antigenic epitopes from heterologous proteins (Brennan et al, 2001). In infected plants, the recombinant coat proteins assemble into chimeric particles with the underlying morphology of the native virus and purified particles can elicit specific antibodies to the heterologous epitope when injected into mice (Dalsgaard et al, 1997). Even feeding mice with infected plant material can lead to humoral and mucosal responses to the expressed epitope (Modelska et al, 1998). 

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