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Issue 17, 2010
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Role of spacer in single- or two-step FRET: studies in the presence of two connected cryptands with properly chosen fluorophores

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Abstract

Two cryptand molecules are connected viap-xyloyl, benzene-1,4-dicarbolyol and 9,10-dimethylene anthracene. Each cryptand is further derivatized with fluorophores such that electronic absorption of one fluorophore overlaps emission of the other. This way, three different systems L1, L2 and L3 have been synthesized to get a better view of the effect on the distance in single- and two-step fluorescence resonance energy transfer (FRET) process. These molecules are probed for FRET in the presence of a metal ion as input. L1 and L2 exhibit poor performance in single step FRET while in the case of L3, a large two-step FRET process is operational with Cu(II) or Hg(II) as input.

Graphical abstract: Role of spacer in single- or two-step FRET: studies in the presence of two connected cryptands with properly chosen fluorophores

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Publication details

The article was received on 12 Jan 2010, accepted on 18 Feb 2010 and first published on 22 Mar 2010


Article type: Paper
DOI: 10.1039/C000681E
Citation: Dalton Trans., 2010,39, 4146-4154
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    Role of spacer in single- or two-step FRET: studies in the presence of two connected cryptands with properly chosen fluorophores

    K. K. Sadhu, S. Chatterjee, S. Sen and P. K. Bharadwaj, Dalton Trans., 2010, 39, 4146
    DOI: 10.1039/C000681E

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