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Xiaolin Wang, Jing Huang, Yangyang Zhou, Shengyong Yan, Xiaocheng Weng, Xiaojun Wu, Minggang Deng and Xiang Zhou Conformational Switching of G-Quadruplex DNA by Photoregulation Angewandte Chemie International Edition 49

Version of Record online: 22 JUN 2010 | DOI: 10.1002/anie.201002290

Thumbnail image of graphical abstract

Bend and stretch… bend and stretch… An azobenzene derivative was used to induce reversible stretching and folding of G-quadruplex DNA upon photoirradiation (see picture). The G quadruplex formed in the presence of the trans isomer was dissociated by irradiation with UV light, and the resulting open oligomer was refolded into a G quadruplex under visible light. This nanodevice thus converts light directly into mechanical work.

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