Abstract
A major challenge in nanoscience is the design of synthetic molecular devices that run autonomously and are programmable. DNA-based synthetic molecular devices have the advantage of being relatively simple to design and engineer, due to the predictable secondary structure of DNA nanostructures and the well-established biochemistry used to manipulate DNA nanostructures. We present the design of a class of DNAzyme based molecular devices that are autonomous, programmable, and further require no protein enzymes. The basic principle involved is inspired by a simple but ingenious molecular device due to Mao et al [25]. Our DNAzyme based designs include (1) a finite state automata device, DNAzyme FSA that executes finite state transitions using DNAzymes, (2) extensions to it including probabilistic automata and non-deterministic automata, (3) its application as a DNAzyme router for programmable routing of nanostructures on a 2D DNA addressable lattice, and (4) a medical-related application, DNAzyme doctor that provide transduction of nucleic acid expression: it can be programmed to respond to the underexpression or overexpression of various strands of RNA, with a response by release of an RNA.
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Reif, J.H., Sahu, S. (2008). Autonomous Programmable Nanorobotic Devices Using DNAzymes. In: Garzon, M.H., Yan, H. (eds) DNA Computing. DNA 2007. Lecture Notes in Computer Science, vol 4848. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77962-9_7
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DOI: https://doi.org/10.1007/978-3-540-77962-9_7
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