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- W2514917557 abstract "DNA is one of the most predictable and programmable self-assembling molecules. This Chapter will focus on an emerging research area at the interface of DNA nanotechnology and supramolecular chemistry. This area brings a range of orthogonal interactions to DNA assembly, resulting in new motifs from a minimum number of DNA sequences. It allows the use of DNA to guide the assembly of two- and three-dimensional structures with precise positioning of functional units, such as transition metals, polymers and gold nanoparticles on the nanometer scale. Small molecules and polymers introduce profound changes in how DNA assembles, and can significantly stabilize this molecule. We describe synthetic methods for the construction of DNA cages and nanotubes with deliberate variation of geometry, size, single- and double-stranded forms, permeability and length. They are reconfigurable and molecule-responsive, e.g., cages can open and close on demand with specific RNA sequences that are overexpressed in cancer cells. The encapsulation of nanoparticles and small molecules and their release when specific DNA strands are added is demonstrated, and their cellular uptake, gene silencing and nuclease resistance are examined. We describe the synthesis of DNA-polymer conjugates, in which the polymeric block is monodisperse and fully sequence-controlled. The sequence order of monomer units in these new materials plays a major role in determining their self-assembly, and their association with DNA cages gives rise to protein-inspired behavior. The molecules shown here represent a new class of selective cellular probes and drug delivery tools, and can assist the development of targeted therapeutic routes." @default.
- W2514917557 created "2016-09-16" @default.
- W2514917557 creator A5073800682 @default.
- W2514917557 creator A5083007130 @default.
- W2514917557 date "2016-07-05" @default.
- W2514917557 modified "2023-10-14" @default.
- W2514917557 title "Supramolecular Chemistry with DNA" @default.
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