The interaction of a series of cationic dialkyloxacarbocyanine perchlorate (DiOC n ) dyes of different degrees of hydrophobicity with micelles of an anionic surfactant, sodium dodecylsulfate (SDS), has been studied spectrophotometrically in aqueous solutions. The Benesi–Hildebrand equation was used to calculate binding constants (K b ) of the dyes to surfactant micelles, the fraction of dye bound to the micelles (f mic ), and the standard free-energy change (ΔG 0) for the transfer of dye from the aqueous to micellar phase. It has been shown that the interaction of oppositely charged dye molecules and surfactant micelles is controlled by both electrostatic and hydrophobic interactions. A small increase in dye hydrophobicity due to lengthening of the hydrocarbon radical has been shown to cause an abrupt nonlinear increase of the fmic value. This points to a key role of hydrophobic interactions in the binding of dye molecules with the micelles.
Similar content being viewed by others
References
M. E. Diaz Garcia and A. Sanz-Medel, Talanta, 33, 255–264 (1986).
S. Bracko and J. Span, Dyes Pigm., 50, 77–84 (2001).
A. Mishra, P. K. Behera, R. K. Behera, B. K. Mishra, and G. B. Beher, J. Photochem. Photobiol. A: Chem., 116, 79–84 (1998).
R. Sabate, M. Gallardo, A. de la Maza, and J. Estelrich, Langmuir, 17, 6433–6437 (2001).
B. Simoncic and M. Kert, Dyes Pigm., 54, 221–237 (2002).
J. Yang, J. Colloid Interface Sci., 274, 237–243 (2004).
P. Forte-Tavcer, Dyes Pigm., 63, 181–189 (2004).
S. Gokturk and M. Tuncay, Spectrochim. Acta, Part A, 59, 1857–1866 (2003).
S. Gokturk, J. Photochem. Photobiol. A: Chem., 169, 115–121 (2005).
Yu. V. Malyukin, S. L. Efimova, and K. Kemnitz, J. Lumin., 94–95, 239–242 (2001).
Yu. V. Malyukin, S. L. Yefimova, A. N. Lebedenko, A. V. Sorokin, and I. A. Borovoy, J. Lumin., 112, 439–443 (2005).
G. M. Cooper, The Cell: A Molecular Approach, ASM Press, Washington (1997).
J. R. Lakowicz, Principles of Fluorescence Spectroscopy, Plenum Press, New York (1983).
R. P. Hauglang, Handbook of Fluorescent Probes and Research Products, Molecular Probes, New York (2002).
Yu. V. Malyukin, I. A. Borovoy, N. S. Kavok, A. V. Geraschenko, N. L. Pogrebnyak, S. L. Yefimova, and A. N. Lebedenko, Biophysics (Engl. Transl.), 52, 406–411 (2007).
S. L. Efimova, G. Ya. Guralchuk, A. V. Sorokin, Yu. V. Malyukin, I. A. Borovoy, and A. S. Lubyanaya, Zh. Prikl. Spektrosk., 75, No. 5, 646–652 (2008).
H. A. Benesi and J. H. Hildebrant, J. Am. Chem. Soc., 71, 2703–2707 (1949).
I. D. Kuntz, Jr., F. P. Gasparro, M. D. Johnston, Jr., and R. P. Taylor, J. Am. Chem. Soc., 90, 4778–4781 (1968).
M. Sarkar and S. Poddar, Spectrochim. Acta, Part A, 55, 1737–1742 (1999).
K. Shinoda, T. Nakagawa, H. Tamamushi, and T. I. Semura, Colloidal Surfactants, Some Physicochemical Properties, Academic Press, New York and London (1963).
K. G. Furton and A. Norelus, J. Chem. Educ., 70, 254–257 (1993).
K. S. Rosenthal and F. Kaussale, Anal. Chem., 55, 1115–1117 (1983).
A. Patist, S. S. Bhagwat, K. M. Penfield, P. Aikens, and D. O. Shah, J. Surfactants Deterg., 3, 53–58 (2000).
C. Samsonoff, J. Daily, R. Almong, and D. S. Berns, J. Colloid Interface Sci., 109, 325–329 (1986).
S. S. Shah, K. Naeem, S. W. H. Shah, and G. M. Laghari, Colloids Surf., 168, 77–85 (2000).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 77, No. 2, pp. 198–203, March–April, 2010.
Rights and permissions
About this article
Cite this article
Lebed, A.S., Yefimova, S.L., Guralchuk, G.Y. et al. Effect of hydrophobicity of cationic carbocyanine dyes DiOC n on their binding to anionic surfactant micelles. J Appl Spectrosc 77, 183–188 (2010). https://doi.org/10.1007/s10812-010-9312-x
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10812-010-9312-x