Experimental confirmation of the change of water structure in the critical range of micelle formation: a new method of critical micelle concentration (CMC) determination.

The decrease in the water structure in the critical range of micelle formation, which had been deduced theoretically, was confirmed by means of a new determination method. The method was based upon the dependence of the gelatin helicity on the water structure and the correlation between the helix-coil equilibrium and the disintegration of gelatin microcapsules. The significant rise in the disintegration rate, indicating a decay of water structure, represents also a new method of critical micelle concentration (CMC) determination.