ABSTRACT We study dynamic and structure of nano-droplets of AOT/water/oil microemulsion with different oils at water/AOT molar ratio of 6.7. Photon correlation spectroscopy is used to study collective diffusion coefficient of nano-droplets at AOT microemulsion with decane and cyclohexane. The collective diffusion coefficient of nanodroples is increasing with change of oil from decane to cyclohexane. The structure of AOT microemulsion with decane and cyclohexane is founded with SAXS. Our results show, nano-droplets of AOT microemulsion with decane at X = 6.7 have cylindrical structure and AOT microemulsion with cyclohexane at X = 6.7 have spherical structure.
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K. Nikjoo, M. Aliahmad, S. Sharifi and M. Sargazi, "Photon Correlation Spectroscopy and SAXS Study of Cylindrical to Spherical Transition in the AOT Microemulsion by Changing Solvent," Soft Nanoscience Letters, Vol. 2 No. 2, 2012, pp. 17-21. doi: 10.4236/snl.2012.22004.
 S. Sharifi and A. Alavi, “Dynamic Light Scattering Study of Microemulsion,” Proceedings of the SPIE, Vol. 8001, 2011, pp. 80012R-1-80012R-8.
 S. Sharifi and M. Amirkhani, “Light Scattering Study of Mixture of Polyethylene Glycol with C12E5 Microemulsion,” Soft Nanoscience Letters, Vol. 1, No. 3, 2011, pp. 76-80. doi:10.4236/snl.2011.13014
 S. Sharifi, P. Kudla, C. L. P. Oliveira, J. S. Pedersen and J. Bergenholtz, “Variations in Structure Explain the Viscometric Behavior of AOT Microemulsions at Low Water/AOT Molar Ratios,” Zeitschrift für Physikalische Chemie, Vol. 226, 2012, pp. 1-18.
 S. Sharifi, M. Amirkhani, J. M. Asla, M. R. Mohammadi and O. Marti, “Light Scattering and SAXS Study of AOT Microemulsion at Low Size Droplet,” Soft Nanoscience Letters, Vol. 2, No. 1, 2012, pp. 8-12.
 L. K. Pershing, L. D. Lambert and K. Knutson, “Mechanism of Ethanol-Enhanced Estradiol Permeation across Human Skin in Vivo,” Pharmaceutical Research, Vol. 7, 1995, pp. 170-175.
 P. Liu, T. Kurihara-Bergstrom and W. R. Good, “Variation of Human Skin Permeation in Vitro: Ionic vs Neutral Compounds,” Pharmaceutical Research, Vol. 8, No. 7, 1992, pp. 938-944. doi:10.1023/A:1015876117627
 E. V. álvarez, J. Carballido-Landeira, J. Guiu-Souto, P. Taboada and A. P. Munuzuri, “Communication: Spectroscopic Phase and Lineshapes in High-Resolution Broadband Sum Frequency Vibrational Spectroscopy: Resolving Interfacial Inhomogeneities of “Identical” Molecular Groups,” Journal of Chemical Physics, Vol. 135, No. 24, 2011, p. 094512. doi:10.1063/1.3675629
 J. Carballido-Landeira, P. Taboada and A. P. Munuzuri, “Nanoscale Changes Induce Microscale Effects in Turing Patterns,” Physical Chemistry Chemical Physics, Vol. 13, No. 10, 2011, pp. 4596-4599. doi:10.1039/c0cp02362k
 W. Brown, “Dynamic Light Scattering: The Method and Some Applications,” Clarendon, Oxford, 1993.
 T. Blochowicz, C. Gogelein, T. Spehr, M. Müller and B. Stühn, “Polymer-Induced Transient Networks in Waterin-Oil Microemulsions Studied by Small-Angle x-Ray and Dynamic Light Scattering,” Physical Review E, Vol. 76, No. 4, 2007, pp. 041505-041513.
 J. Bergenholtz, A. Romagnoli and N. J. Wagner, “Viscosity, Microstructure, and Interparticle Potential of AOT/ H2O/n-Decane Inverse Microemulsions,” Langmuir, Vol. 11, No. 5, 1995, pp. 1559-1570. doi:10.1021/la00005a025
 U. Batra, W. B. Russel and J. S. Huang, “Viscosity Anomaly and Charge Fluctuations in Dilute AOT Microemulsions with X < 20,” Langmuir, Vol. 15, No. 11, 1999, pp. 3718-3725. doi:10.1021/la9812727
 H. Yang, G. Zheng, S.-G. Dai, R.-J. Zhang and P.-A. Mu, “Dynamic Light Back-Scattering with Polarization Gating and Fourier Spatial Filter for Particle Sizing in Concentrated Suspension,” Optica Applicata, Vol. 40, No. 4, 2010, pp. 819-826.
 I. Block and F. Scheffold, “Modulated 3D Cross-Correlation Light Scattering: Improving Turbid Sample Characterization,” Review of Scientific Instruments, Vol. 81, No. 12, 2010, p. 123107. doi:10.1063/1.3518961
 R. Bandyopadhyay, P. H. Mohan and Y. M. Joshi, “Stress Relaxation in Aging Soft Colloidal Glasses,” Soft Matter, Vol. 6, No. 7, 2010, pp. 1462-1466.
 M. Nayeri, M. Zackrisson and J. Bergenholtz, “Scattering Functions of Core-Shell-Structured Hard Spheres with Schulz-Distributed Radii,” Journal of Physical Chemistry B, Vol. 113, No. 24, 2009, pp. 8296-8302.
 M. Schwab and B. Stuhn, “Relaxation Phenomena and Development of Structure in a Physically Cross Linked Nonionic Microemulsion Studied by Photon Correlation Spectroscopy and Small Angle X-Ray Scattering,” Journal of Chemical Physical, Vol. 112, No. 14, 2000, pp. 6461-6471. doi:10.1063/1.481207