ArticleNature communications2026
Electric fields control static charge during contact-friction-separation.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
10 authors.
Funding
Abstract
Contact electrification occurs when two materials rub against one another. This is either a problem, such as when charge builds up during powder processing, or an exploited phenomenon to harvest energy, as is the case in triboelectric nanogenerators. However, why contact electrification occurs remains a topic of hot debate, with ions, adsorbates, electrons and combinations thereof being ascribed the charge carriers. Irrespective of the charge carrier however, there must be a driving force inducing charge to separate and move from one surface to another. Herein, we demonstrate that electric fields, either applied externally or spontaneously generated at an interface can completely alter and even invert surface charge measured after contact electrification in polymer-polymer contact. Applying an external electric field allows the direct control of both magnitude and polarity static charge on dielectric polymers. These results are coupled to simulations that show the applied electric field is on the order of the fields generated by the flexoelectric effect - providing prima facie evidence of flexoelectric driven contact electrification.
Identifiers
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Registered trials
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