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The amphiphilic prodrugs form self - assembled nanoparticles in deionized water and encapsulate the hydrophobic anticancer drug 10 - hydroxycamptothecin ( HCPT ) with a high drug loading efficiency .
 Chemical: 10 - hydroxycamptothecin; Chemical: HCPT
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: 10 - hydroxycamptothecin; Chemical: HCPT