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Several designs of triboelectric energy harvesters relying on biocompatible and eco-friendly natural materials have been introduced in recent years. Their ability to provide customizable self-powering for a wide range of applications, including biomedical devices, pressure and chemical sensors, and battery charging appliances, has been demonstrated. This review summarizes major advances already achieved in the field of triboelectric energy harvesting using biocompatible and eco-friendly natural materials. A rigorous, comparative, and critical analysis of preparation and testing methods is also presented. Electric power up to 14\u00a0mW was already achieved for the dry leaf\/polyvinylidene fluoride-based TENG devices. These findings highlight the potential of eco-friendly self-powering systems and demonstrate the unique properties of the plants to generate electric energy for multiple applications.<\/jats:p>","DOI":"10.1007\/s40820-020-0373-y","type":"journal-article","created":{"date-parts":[[2020,1,28]],"date-time":"2020-01-28T09:03:40Z","timestamp":1580202220000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":131,"title":["Natural and Eco-Friendly Materials for Triboelectric Energy Harvesting"],"prefix":"10.1007","volume":"12","author":[{"given":"Vladislav","family":"Slabov","sequence":"first","affiliation":[]},{"given":"Svitlana","family":"Kopyl","sequence":"additional","affiliation":[]},{"given":"Marco P.","family":"Soares dos Santos","sequence":"additional","affiliation":[]},{"given":"Andrei L.","family":"Kholkin","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2020,1,28]]},"reference":[{"key":"373_CR1","doi-asserted-by":"publisher","unstructured":"J. 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