alexa Characterization of physiochemical and biological properties of an insulin lauryl sulfate complex formed by hydrophobic ion pairing.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Dai WG, Dong LC

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Abstract An insulin/lauryl sulfate complex was prepared by hydrophobic ion pairing (HIP). The physiochemical and biological properties of the HIP complex were characterized using octanol/water partition measurement, isothermal titration calorimetry (ITC), ultraviolet-circular dichroism (UV-CD) and Fourier transform infrared spectroscopy (FTIR). Sodium dodecyl sulfate (SDS) bound to the insulin in a stoichiometric manner. The formed complex exhibited lipophilicity, and its insulin retained its native structure integrity. The in vivo bioactivity of the complex insulin was evaluated in rats by monitoring the plasma glucose level after intravenous (i.v.) injection, and the glucose level was compared with that for free insulin. The pharmacodynamic study result in rats showed that the complex insulin had in vivo bioactivity comparable to free insulin. This article was published in Int J Pharm and referenced in Journal of Nanomedicine & Nanotechnology

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