114
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of head group polarity and spacer chain length on the aggregation
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lyte effects on the cationic micelle catalyzed decarboxylation of
Conclusion
6-nitrobenzisoxazole-3-carboxylate anion.
95:3262–3272
J Am Chem Soc
Surface characterization of gemini homologues indicates
their good surface active and self-aggregation properties.
Our study revealed the possible relationship between the
alkyl chain and spacer chain length with the biological
activity. The antimicrobial potency showed the sequence
(Gram-positive bacteria [ Fungi [ Gram-negative bacte-
ria) on the targeted microorganisms. Results successfully
predicted the possible dependence of antimicrobial activity
of compounds on CMC. These features make the gemini
(dimeric) surfactants important for understanding their
micellization phenomenon and micellar transitions which
encourage the optimization of various formulations with
compatible oppositely charged/neutral surfactants for
making the antimicrobial systems much more robust and
applicable for extensive commercial utilization.
13. Zana R, Benrraou M, Rueff R (1991) Alkanediyl—a,x bis
(dimethylalkylammonium bromide), surfactants. 1. Effect of the
spacer chain length on the critical micelle concentration and
micelle ionization degree. Langmuir 7:1072–1075
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(1995) Small-angle neutron-scattering study of bis (quaternary
ammonium bromide) amphiphile micelles in water. Effect of the
spacer chain length on micellar structure.
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Acknowledgments The authors are thankful to the Department of
Bioscience, Veer Narmad South Gujarat University Gujarat, India, for
providing laboratory facilities to carry out the biological activities.
The authors acknowledge Prof. Pratap Bahadur, Department of
Chemistry, Veer Narmad South Gujarat University for his valuable
guidance and the Council of Scientific and Industrial Research
(CSIR), New Delhi, INDIA for the Direct Senior Research Fellowship
Award and giving financial assistance under the scheme 09\1008\
(0001)\2010\EMR-I.
20. De S, Aswal VK, Goyal PS, Bhattacharya S (1996) Role of
Spacer chain length in dimeric micellar organization. Small angle
neutron scattering and fluorescence studies. J Phys Chem 100:
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