• Typical structures/working mechanisms of gel-based triboelectric nanogenerators and performance advantages of gel materials reviewed.

• Optimization of hydrogels, organogels, and aerogels for triboelectric nanogenerators in flexible sensing summarized.

• Applications, challenges, and future development directions of gel-based triboelectric nanogenerators in flexible sensing are discussed.

中文翻译：

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用于灵活传感的凝胶摩擦纳米发电机：原理、特性和应用

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  凝胶基摩擦纳米发电机的典型结构/工作机制以及凝胶材料的性能优势。

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  总结了柔性传感中摩擦纳米发电机的水凝胶、有机凝胶和气凝胶的优化。

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  讨论了基于凝胶的摩擦纳米发电机在柔性传感中的应用、挑战和未来发展方向。