PMID- 12963444 OWN - NLM STAT- MEDLINE DCOM- 20040603 LR - 20190922 IS - 1386-1425 (Print) IS - 1386-1425 (Linking) VI - 59 IP - 11 DP - 2003 Sep TI - Energy transfer--a tool for probing micellar media. PG - 2487-96 AB - The non-ionic polyoxyethylene chain-containing surfactant Triton X-100 (TX-100) forms well-defined micelles and reverse micelles in aqueous and hydrocarbon media, respectively. Nonradiative energy transfer between two charged fluorescent dyes, fluorescein (FL) and acridine orange (AO) has been used to probe the micelles and reverse micelles of TX-100. In the energy transfer system employed, FL acts as the donor and AO as the acceptor. This is borne out by the fluorescence spectral data. Time-resolved studies further corroborate the steady-state results. As the fluorescence emission spectra of the two dyes show a considerable amount of overlap, they are resolved into individual donor and acceptor components using the principal component analysis (PCA) method. This study also focuses on the more important role played by hydrophobic forces (compared with electrostatic interactions) in promoting energy transfer between charged species in micellar media. FAU - De, Swati AU - De S AD - Department of Chemistry, University of Kalyani, Kalyani 741 235, Nadia, India. swati@klyuniv.ernet.in FAU - Girigoswami, Agnishwar AU - Girigoswami A FAU - Mandal, Anil Kumar AU - Mandal AK LA - eng PT - Journal Article PL - England TA - Spectrochim Acta A Mol Biomol Spectrosc JT - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy JID - 9602533 RN - 0 (Micelles) RN - 9002-93-1 (Octoxynol) RN - F30N4O6XVV (Acridine Orange) RN - TPY09G7XIR (Fluorescein) SB - IM MH - Acridine Orange/chemistry MH - *Energy Transfer MH - Fluorescein/chemistry MH - *Micelles MH - Octoxynol/*chemistry MH - Spectrometry, Fluorescence MH - Spectrophotometry MH - Time Factors EDAT- 2003/09/10 05:00 MHDA- 2004/06/04 05:00 CRDT- 2003/09/10 05:00 PHST- 2003/09/10 05:00 [pubmed] PHST- 2004/06/04 05:00 [medline] PHST- 2003/09/10 05:00 [entrez] AID - S138614250300043X [pii] AID - 10.1016/s1386-1425(03)00043-x [doi] PST - ppublish SO - Spectrochim Acta A Mol Biomol Spectrosc. 2003 Sep;59(11):2487-96. doi: 10.1016/s1386-1425(03)00043-x.