أرسل هذا في رسالة قصيرة: Synthesis of highly selective spherical caffeine imprinted polymers via ultrasound-assisted precipitation polymerization

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