The aqueous solution of PEO is coated on the outer layer of the pill to form a controlled release drug, which has been widely used in the pharmaceutical industry to control the diffusion rate of the pill component in the body and improve the efficiency of the pill. Due to the non-toxicity and gelation of PEO, one of the components used as a denture fixative can act as a buffer between the denture and the mouth, and it also helps to reduce unpleasant odors and tastes. The PEO solution is a pseudoplastic liquid, and its sensitivity to shear rate can be used as a liquid for contact lenses (ie, contact lenses), and the bacteria are not easily grown on PEO to maintain contact sterility.
