14336
Surface properties of PLGA were investigated by field emission scanning electron microscopy ( FESEM ) , atomic force microscopy ( AFM ) , static contact angle ( CA ) , and high resolution X - ray photoelectron spectroscopy ( XPS ) .
 Chemical: PLGA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: PLGA 
Answer:
 Chemical: PLGA