A special film with tiny zinc particles makes it much harder for water vapor to pass through, keeping things inside much drier than if they were just in an open bottle.

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Evidence from Studies

Supporting (1)

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Development of (polyvinylpyrrolidone/chitsoan/citric acid)/(zinc oxide‐nanoparticles) bionanocomposite films and their applications in biodegradation and antimicrobial activity

Cross-Sectional Study

In Vitro

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No contradicting evidence found

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Source Study

Development of (polyvinylpyrrolidone/chitsoan/citric acid)/(zinc oxide‐nanoparticles) bionanocomposite films and their applications in biodegradation and antimicrobial activity

Score: 3

DOI: 10.1002/pen.26558

Similar Assertions

When more zinc oxide nanoparticles are added to special films, they become better at killing germs, which you can see by bigger clear rings around the film where germs can't grow.

78%

This is about special plastic-like films that break down in soil. Films without tiny zinc particles lost 72% of their weight, while those with zinc particles lost only 47.5% after 120 days.

72%