1. Another approach to ocular drug delivery is to insert a solid polymer device beneath the lid. 2. Under these conditions, however, ethylene forms short chains or rings, rather than the long chains of the solid polymer. 3. A solid polymer forms the electrolyte -- that is, the material through which charged particles migrate to create an electric current. 4. When they removed the solvent, a small pellet of solid polymer remained, with the drug trapped inside. |
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