Text this: Triboluminescence and triboelectricity: toward next-generation wearable light sources

 _____       ___     _    _     _____      _____  
|  __ \\    / _ \\  | |  | ||  |  ___||   / ___// 
| |  \ ||  | / \ || | |/\| ||  | ||__     \___ \\ 
| |__/ ||  | \_/ || |  /\  ||  | ||__     /    // 
|_____//    \___//  |_// \_||  |_____||  /____//  
 -----`     `---`   `-`   `-`  `-----`  `-----`