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The purpose of this study was to investigate the effect of various types and amounts of polysorbates on potassium chloride release. Potassium chloride, which is a highly water-soluble model drug, was embedded into wax (containing surfactants) to produce a sustained-release dosage form. Various kinds of polysorbates were chosen as surfactants to control the(More)
The Zinc Hyaluronate complex has several advantages from the point of view of woundhealing. The author's task was the elaboration of the sterile filtration technology of the 0.2% Zinc Hyaluronate solution. In the first step 0.2 micron pore diameter filters were used. During the scale up process we found that the filter boards are not suitable. The(More)
Ultrastructural studies of the mouthparts of Musca domestica L. show that the fly's prestomal teeth are more damaging to host tissues than considered previously. When fed on tissue culture or pig cornea, SEM revealed that M. domestica were able to tear and suck up cells. This process occurs so rapidly, and so few cells are involved, that the damage is not(More)
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