Such particles were subsequently shown to modulate the apoptosis of cancer cells in both cell cultures and animal trials. RNA is unique in nanoscale fabrication due to its amazing diversity of function and structure. random 100nucleotide RNA library exist in 1060 varieties with multifarious structure to serve as vital system for efficient fabrication, with complexity and diversity far exceeding that of any current nanoscale system. Such arrays are unusually stable and resistant to wide range of temperatures, salt concentrations, and pH.

Such arrays are unusually stable and resistant to wide range of temperatures, salt concentrations, and pH. phi29 pRNA can be redesigned to form variety of structures and shapes including twins, tetramers, rods, triangles, and 3D arrays several microns in size via interaction of programmed helical regions and loops. In contrast, nontemplate assembly involves formation of larger structure by individual components without the influence of specific external sequence, forces, or spatial constraints such as RNA transcription, hybridization, replication, annealing, molding, or replicas.

Both the therapeutic siRNA or ribozyme and receptorbinding RNA aptamer or other ligands results in the binding and coentry of trivalent therapeutic particles into cells. Applications of RNA molecules involving replication, molding, embossing, and other related techniques, have recently been described that allow the utilization of variety of materials to enhance diversity and resolution of nanomaterials. Other potentially useful RNA molecules that form multimers include HIV RNA that contain kissing loop to form dimers, tectoRNA that forms jigsaw puzzle, and the Drosophila bicoid mRNA that forms multimers via handbyarm interactions.

Template assembly involves interaction of RNA molecules involving replication, molding, embossing, and other related techniques, have recently been described that allow the utilization of variety of materials to enhance diversity and resolution of nanomaterials. Individual chimeric RNA building blocks harboring siRNA or other therapeutic molecules have been fabricated subsequently into trimer through handinhand interaction of the engineered right and left interlocking RNA loops. The use of such antigenfree 2040 nm particles holds promise for the repeated longterm treatment of chronic diseases. Such arrays are unusually stable and resistant to wide range of temperatures, salt concentrations, and pH.

RNA molecules can be designed and manipulated with level of simplicity characteristic of DNA while possessing versatility in structure and function similar to that of proteins. The use of such antigenfree 2040 nm particles holds promise for the repeated longterm treatment of chronic diseases. The incubation of these particles containing the receptorbinding aptamer or other ligands have been engineered into individual pRNAs.