PMID- 24038989 OWN - NLM STAT- MEDLINE DCOM- 20140519 LR - 20131014 IS - 1439-7641 (Electronic) IS - 1439-4235 (Linking) VI - 14 IP - 15 DP - 2013 Oct 21 TI - A potential carcinogenic pyrene derivative under Forster resonance energy transfer to various energy acceptors in nanoscopic environments. PG - 3581-93 LID - 10.1002/cphc.201300568 [doi] AB - Picosecond-resolved Forster resonance energy transfer (FRET) from various vibronic bands in benzo[a]pyrene (BP) shows a strong dependency on the spectral overlap of an energy acceptor in a confined environment. Our study on the dipolar interactions between BP and different acceptors, including ethidium (Et), acridine orange (AO), and crystal violet (CV), at the surface of a model anionic micelle revealed that the Forster distance (R0) and the rate of energy transfer is dependent on the individual spectral overlap of the vibronic bands of BP with the absorption spectra of the different energy acceptors. The differential behavior of the vibronic bands is compared with that of different dyes [quantum dots (QDs)] in a "dye-blend" (mixture) under FRET to an energy acceptor. Comparison of the FRET of the QDs with that of BP confirmed the independent nature of the dipolar interaction of the vibronic bands with other organic molecules, and the use of deconvolution techniques in the interpretation of the donor-acceptor (D-A) distance was also justified. We also showed that the consideration of differential FRET from the vibronic bands of BP and from the QDs in the dye-blend is equally acceptable in theoretical frameworks including the Infelta-Tachiya model and D-A distribution analysis in nanoenvironments. CI - Copyright (c) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Banerjee, Soma AU - Banerjee S AD - Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098 (India). FAU - Goswami, Nirmal AU - Goswami N FAU - Pal, Samir Kumar AU - Pal SK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130826 PL - Germany TA - Chemphyschem JT - Chemphyschem : a European journal of chemical physics and physical chemistry JID - 100954211 RN - 0 (Micelles) RN - 0 (Pyrenes) RN - 3417WMA06D (Benzo(a)pyrene) RN - 368GB5141J (Sodium Dodecyl Sulfate) RN - 9E0T7WFW93 (pyrene) SB - IM MH - Benzo(a)pyrene/chemistry MH - *Fluorescence Resonance Energy Transfer MH - Micelles MH - Pyrenes/*chemistry MH - Quantum Dots/chemistry MH - Sodium Dodecyl Sulfate/chemistry MH - Time Factors OTO - NOTNLM OT - FRET OT - micelles OT - quantum dots OT - ultrafast spectroscopy OT - vibronic fine structures EDAT- 2013/09/17 06:00 MHDA- 2014/05/20 06:00 CRDT- 2013/09/17 06:00 PHST- 2013/06/16 00:00 [received] PHST- 2013/09/17 06:00 [entrez] PHST- 2013/09/17 06:00 [pubmed] PHST- 2014/05/20 06:00 [medline] AID - 10.1002/cphc.201300568 [doi] PST - ppublish SO - Chemphyschem. 2013 Oct 21;14(15):3581-93. doi: 10.1002/cphc.201300568. Epub 2013 Aug 26.