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

  _  _    _    _   __    __   _    _    _____    
 | \| || | || | || \ \\ / // | || | || |  __ \\  
 |  ' || | || | ||  \ \/ //  | || | || | |  \ || 
 | .  || | \\_/ ||   \  //   | \\_/ || | |__/ || 
 |_|\_||  \____//     \//     \____//  |_____//  
 `-` -`    `---`       `       `---`    -----`