Text this: Characterisation of PolyVinyl Alcohol (PVA) as a water-soluble sacrificial layer for affordable surface micromachining

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