Inter-micelles distance

MECC separations are conducted in open capillaries, hence eddy diffusion is not problematic. However, the columns behave in many ways like packed columns, with the micelles functioning as uniformly sized and evenly dispersed packing particles. In packed columns, resistance to mass transfer in the mobile phase is reduced (i.e., efficiency improved) when smaller particles are used because the "diffusion distance" between particles is decreased. Average inter-micellar" distance is the analogous parameter in MECC. This distance can be decreased by increasing surfactant concentration. 

Borbat P, Ramlall TF, Freed JH, Eliezer D (2006) Inter-helix distances in iysophosphoiipid micelle-bound alpha-synuclein from pulsed ESR measurements. J Am Chem Soc 128 10004-10005... 

STM image of bare Au(100)-(1 x 1) at -0.5 V. The fourfold square lattice of the Au(lOO) surface is clearly identified from the images, with periodicities close to the inter-atomic distance of the corresponding surface. The adsorption of BMI+ cations successively forms disordered and then ordered micelle-like structures at potentials negative of -0.7 V [42], The potential region where the adsorption of anions and cations are observed are just at the two sides of the potential of capacitance maxima in a differential capacitance curve for the system, providing an experimental basis to validate theoretical prediction that potential of zero charge (PZC) is located close to the maxima [45]. 

Data analysis methods depend upon the level of order in the sample. The degree of order, in turn, depends upon the scale of distance on which the sample is viewed. For example, casein micelles show great variation in size (20 to 300 nm diameter) and so must be treated as a polydisperse system. However, the density variations ( submicelles ) within the whole micelle are much more uniform in size. They can be treated as a quasi-monodisperse system (Stothart and Cebula, 1982) and analyzed in terms of inter-particle interference (Stothart, 1989). 

In this study, one mutant includes a pair of cysteines placed within a single helix to provide an internal distance control. Distance distributions were obtained by DEER measurements and Tikhonov regularization. Studying ASYN bound to detergent and lysophospholipid micelles, it has been shown that the inter-helical... 

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