2results about How to "Increase permeation" patented technology

This invention relates to a butylphthalide cationic nanoemulsion, its preparation method, and its application, belonging to the field of pharmaceutical technology. The butylphthalide cationic nanoemulsion comprises an oil phase, an aqueous phase, butylphthalide, an emulsifier, a co-emulsifier, an osmotic pressure regulator, and a cationic surfactant. The butylphthalide content in the nanoemulsion is 0.30%–2.50% by mass. The average particle size of the butylphthalide cationic nanoemulsion is 80–200 nm, the polydispersity index is 0.070–0.200, and the zeta potential is 20–30 mV. This invention solves the problems of poor water solubility and low stability of butylphthalide by preparing it into a nanoemulsion formulation; furthermore, by administering it via nasal administration, it meets the need for rapid neuroprotection in ischemic stroke.

This invention provides a radar radome for sealing a radar antenna array. The radar antenna array is disposed on an antenna base. The radar radome includes: a radome body connected to the antenna base and covering the radar antenna array to form a cavity sealing the radar antenna array, with the inner surface of the radome body facing the radar antenna array; a groove recessed from the inner surface, the position of which corresponds to the position of the radar antenna array to increase the volume of the cavity corresponding to the radar antenna array; and a metallized component embedded from the inner surface into the radome body and located outside the groove in the horizontal direction to extend the beamwidth of the radar antenna array in the horizontal direction.