Paper
NJC
Fig. 7 Intensity weight averaged particle size distribution of stilbene (1) in (a) CTAB, (b) SDS and (c) Triton X-100. The sample concentration is of the
order B2 Â 10À5 M at the surfactant concentrations above CMC values.
dye aggregates is polydisperse in the case of CTAB and Triton-X Help from IISER Kolkata in recording the single crystal data is
100, while relatively sharp aggregates are noted for SDS. appreciated. Thanks are also due to Dr Virupakshi Soppina for the
The overall size obtained from DLS measurements is due to help in fluorescence microscopy experiments and Dr Super Mishra
aggregates in their hydrodynamic sphere and the interaction of for useful discussions.
surfactants seems to have a differential effect on the size of the
hydrodynamic sphere of aggregates.
References
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surfactants as they are mostly homogeneous solutions. Therefore, it
is presumed that the sizes of aggregates obtained for the dye in
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assemblies, we have recorded fluorescence decay profiles. In water, a
mono-exponential decay with a lifetime of 1.40 ns was observed.
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and lifetime data are given in the ESI† (Fig. S7 and Table S2).
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New J. Chem.
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