期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 54, 期 4, 页码 1098-1129出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201404652
关键词
DNA machines; DNA switches; DNAzymes; electrochemistry; photochemistry
资金
- NanoSensoMach ERC under the EC FP7 program [267574]
The base sequence of nucleic acid encodes structural and functional properties into the biopolymer. Structural information includes the formation of duplexes, G-quadruplexes, i-motif, and cooperatively stabilized assemblies. Functional information encoded in the base sequence involves the strand-displacement process, the recognition properties by aptamers, and the catalytic functions of DNAzymes. This Review addresses the implementation of the information encoded in nucleic acids to develop DNA switches. A DNA switch is a supramolecular nucleic acid assembly that undergoes cyclic, switchable, transitions between two distinct states in the presence of appropriate triggers and counter triggers, such as pHvalue, metal ions/ligands, photonic and electrical stimuli. Applications of switchable DNA systems to tailor switchable DNA hydrogels, for the controlled drug-release and for the activation of switchable enzyme cascades, are described, and future perspectives of the systems are addressed.
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