@misc{zou_micellization_activity_2010, 
author={Zou, A., Liu, J., Haramus, V.M., Yang, Y., Willumeit, R., Mu, B.},
title={Micellization Activity of the Natural Lipopeptide [Glu1, Asp5] Surfactin-C15 in Aqueous Solution},
year={2010},
howpublished = {journal article},
doi = {https://doi.org/10.1021/jp908675s},
abstract = {Surface tension, small angle neutron scattering (SANS), freeze-fracture transmission electron microscopy (FF-TEM), and circular dichroism (CD) have been used to study the self-aggregation properties of the natural lipopeptide [Glu1, Asp5] surfactin-C15 in 0.01 M phosphate buffer solution (PBS) at pH 7.4. It has been found that the critical micelle concentration (cmc) of surfactin is 1.54 × 10−5 M, the surface tension at the cmc (σcmc) is 27.7 mN/m, and the area per molecule at the air−water interface is 107.8 Å2. Surfactin molecules adopt a β-sheet conformation already at low concentrations. This feature probably makes it surface-active at such low concentrations. From SANS and FF-TEM results, it is seen that surfactin exhibits a strong self-assembly ability to form sphere-like micelles and some larger aggregates even at the rare low concentration. The aggregation number of sphere-like micelles is much smaller than that for conventional surfactants of similar alkyl chain length.},
note = {Online available at: \url{https://doi.org/10.1021/jp908675s} (DOI). Zou, A.; Liu, J.; Haramus, V.; Yang, Y.; Willumeit, R.; Mu, B.: Micellization Activity of the Natural Lipopeptide [Glu1, Asp5] Surfactin-C15 in Aqueous Solution. The Journal of Physical Chemistry  B. 2010. vol. 114, no. 8, 2712-2718. DOI: 10.1021/jp908675s}}