Azobenzene: An Optical Switch for in vivo Experiments

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Abstract

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Changing your genes: Isomerization around the central N[DOUBLE BOND]N double bond of an azobenzene causes pronounced structural and spectral differences between the trans and the cis isomers. This can be used as a photochromic switching mechanism, possibly to selectively switch gene expression in a spatially and temporally controlled manner in living organisms.

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