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Water-soluble small-molecule probes for RNA based on a two-photon fluorescence “off–on” process: systematic analysis in live cell imaging and understanding of structure–activity relationships

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Abstract

The conveniently obtained water-soluble small-molecule L1–5 were selective for RNA with remarkable “off–on” two-photon fluorescence responses in vitro and in vivo, showing that L1–5 can surprisingly stain mitochondria or nucleoli individually with orange fluorescence under different focal lengths. Compounds L6–8 were prepared, for comparison, to further explore the mechanism of the binding of L1–5 with RNA, which revealed that the synergistic effect of the amino group and the pyridinium cation played a significant role in distinct cell imaging.

Graphical abstract: Water-soluble small-molecule probes for RNA based on a two-photon fluorescence “off–on” process: systematic analysis in live cell imaging and understanding of structure–activity relationships

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Publication details

The article was received on 18 Sep 2017, accepted on 17 Nov 2017 and first published on 17 Nov 2017


Article type: Communication
DOI: 10.1039/C7CC07288K
Citation: Chem. Commun., 2017, Advance Article
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    Water-soluble small-molecule probes for RNA based on a two-photon fluorescence “off–on” process: systematic analysis in live cell imaging and understanding of structure–activity relationships

    H. Li, Y. Li, H. Zhang, G. Xu, Y. Zhang, X. Liu, H. Zhou, X. Yang, X. Zhang and Y. Tian, Chem. Commun., 2017, Advance Article , DOI: 10.1039/C7CC07288K

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