Functions inorganic substrates

Gold functionalized inorganic substrates are suitable for constructing patterned PVFA-co-PVAm functionalized surfaces, allowing incorporation of noble metals, inorganic clusters, and biologically active components. 

Improve adhesion of dissimilar materials such as polymers to inorganic substrates. Also called primers. Primers generally contain a multifunctional chemically reactive species capable of acting as a chemical bridge. In theory, any polar functional group in a compound may contribute to improved bonding to mineral surfaces. However, only a few organofunc-tional silanes have the balance of characteristics required... 

Although to only a minor extent, other mechanisms can be invoked, as for instance covalent bonding (grafting) between hydroxy groups on the surface of the inorganic substrates and functional groups of the biopolymers [35]. 

Fu et al. [73] used a hybrid device for fabrication and packaging of microchips. This method consisted of a layer of inorganic substrate like silicon wafer and organic elastomer such as PDMS to perform multiple functions on an integrated chip. 

In the gas-phase modification of Chemical Surface Coating, the inorganic substrate is subjected to subsequent, single step, one component reactions. This process is repeated in a cyclic way. The reaction temperatures are very low, usually room temperature. In this way, the ceramic precursor is built. Its thickness is a function of the number of CSC cycles involved. A CSC cycle is a subsequent modification of the substrate with 2 gases. Finally, the ceramic precursor is converted towards a ceramic coating by a thermal treatment. 

PVFA-co-PVAm molecules adsorbed on silica surfaces are accessible to subsequent chemical reactions with isocyanates or fullerenes which introduce novel functionalities and irreversibly fix the PVFA-co-PVAm layer on the inorganic substrate. 

---