أرسل هذا في رسالة قصيرة: Antibacterial Activity Against Acne Involved Bacteria of Chitosan in a Soluble State and as Nanoparticles

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