أرسل هذا في رسالة قصيرة: A rocket-like encapsulation and delivery system with two-stage booster layers : pH-responsive poly(methacrylic acid)/poly(ethylene glycol) complex-coated hollow silica vesicles

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