2385
A Tween 80 - coated poly - L - lactid acid nanoparticles was used as a model of colloidal drug delivery system , able to trespass the BBB .
 Chemical: poly - L - lactid acid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: poly - L - lactid acid