Abstract
Organically modified silica (Ormosil) gels are three-dimensional matrices obtained by co-polymerizing tetraalkyl orthosilicates and organoalkoxysilanes through the sol-gel technology. Ormosil matrices are highly flexible with respect to macroscopic size and shape, as they can be prepared in the form of monoliths, layers, powders and nanoparticles, and to their physical-chemical properties, with special regard to hydrophobicity or specific functionalization of their alkyl and aryl groups. This makes Ormosils a very promising matrix, though not widely exploited so far, for the immobilization of enzymes and other biomolecules either by encapsulation within the gel matrix or by surface decoration of nanoparticles. Potential applications range from the development of biocatalysts and bioremediation devices to intracellular drug delivery and photodynamic therapy.
Keywords: Organically modified silica, enzyme immobilization, surface decoration, bioremediation.
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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