Describir: Microscopic spheroidal particles obtained by laser cutting

  _  _    __   __    ______    _____     _  __     ___      _  _      ___    
 | \| ||  \ \\/ //  /_   _//  |  ___||  | |/ //   / _ \\   | \| ||   / _ \\  
 |  ' ||   \ ` //     | ||    | ||__    | ' //   | / \ ||  |  ' ||  | / \ || 
 | .  ||    | ||     _| ||    | ||__    | . \\   | \_/ ||  | .  ||  | \_/ || 
 |_|\_||    |_||    /__//     |_____||  |_|\_\\   \___//   |_|\_||   \___//  
 `-` -`     `-`'    `--`      `-----`   `-` --`   `---`    `-` -`    `---`