14849
In vitro drug release study , the drug dissolution rate from the nanoparticles was significantly enhanced compared to the physical mixture and to the pure drug ; the release profile of the nanoparticles was stable after 120 days .
 None
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:  
Answer:
 None