Sugammadex, a thiolated γCD derivative used as an antagonist of steroidal blockers, was studied with regard to its tendency to self-associate in aqueous solution. Three independent methods - permeation through semi-permeable cellophane membranes, dynamic light scattering, and sedimentation equilibrium analytical ultracentrifugation - were used for this purpose. The results were in agreement with each other and showed no evidence of self-association in a wide sugammadex concentration range from 0.25 to 100mg/ml.
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| http://dx.doi.org/10.1016/j.ijpharm.2011.04.044 | DOI Listing |
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