A Fast, Visible-Light-Sensitive Azobenzene for Bioorthogonal Ligation

Claudia Poloni, Wiktor Szymanski, Lili Hou, Wesley R. Browne*, Bernard Feringa

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

29 Citaten (Scopus)
691 Downloads (Pure)


Azobenzenes have been used as photoresponsive units for the control of numerous biological processes. Primary prerequisites for such applications are site-selective incorporation of photoswitchable units into biomolecules and the possibility of using non-destructive and deep-tissue-penetrating visible light for the photoisomerization. Here we report a push-pull azobenzene that readily undergoes a Staudinger-Bertozzi ligation with azide groups, that can be addressed with visible light (>440nm) and exhibits the solvato- and acidochromism typical for push-pull systems. The thermal relaxation in aqueous environment proceeds on the low-millisecond timescale, thus enabling control over biological processes on similar timescales. The approach is demonstrated in the modification of a quartz surface and in the incorporation of an azobenzene unit into a functional peptide, the third zinc finger in the mammalian factor Sp1.

Originele taal-2English
Pagina's (van-tot)946-951
Aantal pagina's6
Nummer van het tijdschrift4
StatusPublished - 2014

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