Download or read book DNA Nanostructures as a Printing Press for DNA-polymer Hybrid Materials written by Sean Laxton and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Block copolymers have widespread use in areas such as luminescence, photovoltaics, electronics, optics, shape memory, self healing, stimuli-responsiveness, photonics, and drug delivery due to their predictable, ordered nanostructures. However, block copolymer materials are usually restricted to highly symmetric spherical, cylindrical, lamellar, and vesicular morphologies, resulting from the non-covalent interactions that direct their assembly. Recent interest, inspired by natural systems, has emerged to break the symmetry in polymer self-assembly to achieve materials with new and unusual functional properties. To break the symmetry of polymer assembly, patchy particles, Janus particles, multicompartment particles, and lithography have been employed. Although these methods of polymer assembly have improved the range of polymer architectures, they have limited control of the compartmentalization and orientation of the binding sites on the particle surface. In contrast, DNA nanotechnology harnesses Watson-Crick-Franklin base pairing to create highly specific and programmable assemblies at the nanoscale. Therefore, transferring a pattern of DNA strands from a DNA nanostructure onto polymer particles ("printing") combines the materials properties of polymers with the high structural control of DNA nanotechnology. In this thesis, advances to make new DNA polymer hybrid materials are employed-with an emphasis of printing DNA patterns on polymer particle surfaces. First, the use of DNA cubes as a 2D printing press, placing DNA strands with controlled sequence, valency, and patterns on the surface of block copolymer micelles and spherical nucleic acids will be investigated. Second, using sequence-defined polymers, a polymer particle that can be assembled inside a DNA cube with a 3D DNA pattern attached will be examined. Again, these printed strands have controlled DNA sequence, valency, and pattern on the surface. Furthermore, these 3D cube printed particles can have polymers attached, with click chemistry, to the surface to change particle properties. All these cube printing methods are modular; changing the polymer composition of the DNA printed particles can further give assemblies with given polymer types at a given position, further tuning the material properties. Lastly, spherical nucleic acids will be used as a nanoreactor to incorporate hydrophobic drug-polymer conjugates for controlled drug release. These materials will be useful for drug delivery and building blocks for asymmetric polymer patterning. Overall, these DNA-polymer materials can be used to make new hierarchical and functional materials through their programmable assembly"--