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

Sadhu, Kalyan K. ; Chatterjee, Soumit ; Sen, Susan ; Bharadwaj, Parimal K. (2010) Role of spacer in single- or two-step FRET: studies in the presence of two connected cryptands with properly chosen fluorophores Dalton Transactions, 39 (17). pp. 4146-4154. ISSN 1477-9226

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Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/2010...

Related URL: http://dx.doi.org/10.1039/C000681E

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.

Item Type:Article
Source:Copyright of this article belongs to Royal Society of Chemistry.
ID Code:4985
Deposited On:18 Oct 2010 06:00
Last Modified:18 May 2011 07:09

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