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The University of Freiburg, Germany, recently announced that researchers at the university have developed a new composite material that can be used to precisely dispense drugs under the skin. The body will not produce adverse reactions to this material. Future new materials are expected to be used to treat diseases such as cancer.
The researchers implanted zinc oxide into polyethylene glycol films using atomic layer deposition to form a hydrolyzable composite. The film thickness of this material is only a few microns and its molecular structure is suitable for storing relatively large doses of drugs. In order to allow this drug storage material to accurately apply drugs, its surface is also coated with two layers of conductive polymer.
The researchers graphically portrayed the composite as a porous mesh with holes that opened when negatively charged and closed when positively charged, enabling accurate dose release control. Laboratory cell culture tests showed that humans receiving this new material implant did not produce adverse reactions.
The researchers said that compared with the existing subcutaneous application materials, the new materials can not only effectively control the amount of drugs, but also use a small space to store enough doses. Future new materials are expected to be used to treat diseases such as cancer. The relevant report has been published in the British "Scientific Report" magazine.
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