20302
In vitro drug release from the developed stents was carried in different release media , normal saline - isopropanol ( NS - IP ) , phosphate buffer ( PB ) , phosphate buffer saline ( PBS ) and in human plasma .
 Chemical: isopropanol; Chemical: phosphate; Chemical: phosphate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: isopropanol; Chemical: phosphate; Chemical: phosphate