Kedia Niraja, Bagchi Sanjib
Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur Campus, BCKV Main P.O., Nadia, 741252, India.
Presidency University, 86/1, College Street, Kolkata 700 073, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2015 Jun 15;145:467-472. doi: 10.1016/j.saa.2015.03.075. Epub 2015 Mar 11.
Ultrafast fluorescence resonance energy transfer (FRET) from a merocyanine dye to a Rhodamine 6G (R6G) molecule in micelles formed by the surfactants SDS and DTAB and also in a catanionic vesicle formed by SDS and DTAB has been studied by picosecond time resolved emission spectroscopy. Here the dye acts as a donor molecule and R6G acts as the acceptor molecule. Multiple timescales of FRET have been detected, namely, an ultrafast component of 100-500 ps and relatively long component (1800-3300 ps). The different time scales are attributed to different donor-acceptor distances.
通过皮秒时间分辨发射光谱研究了在由表面活性剂十二烷基硫酸钠（SDS）和十四烷基三甲基溴化铵（DTAB）形成的胶束中，以及在由SDS和DTAB形成的阴-阳离子囊泡中，一种部花青染料向罗丹明6G（R6G）分子的超快荧光共振能量转移（FRET）。在此，该染料作为供体分子，R6G作为受体分子。已检测到FRET的多个时间尺度，即100 - 500皮秒的超快成分和相对较长的成分（1800 - 3300皮秒）。不同的时间尺度归因于不同的供体 - 受体距离。
