Text this: Creation of intestine-like interior space for metal-oxide nanostructures with a quasi-reverse emulsion

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