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DNA walker strides towards the light
The walker has only managed to travel 21nm so far © Angew. Chem., Int. Ed.
DNA molecules are now able to enjoy a stroll in the sunshine, thanks to US and Chinese chemists who have developed the first light-powered DNA walker.
Up until now, synthetic DNA machines have mainly been powered by chemical reactions, but light offers the potential for a much greater degree of control, allowing these machines to be stopped and started on command. 'For chemists, precise control over nano-sized mechanical movement is still quite difficult and we believe that light power, with high temporal-spatial resolution and the ability for remote control, provides a future for this fast-developing area,' explains lead researcher Weihong Tan at the University of Florida, US. More...
http://www.rsc.org/chemistryworld/News/2012/February/DNA-walker-technology-light-powered.asp
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