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We synthesized N - ( 2 - hydroxypropyl ) methacrylamide polymer conjugated with zinc protoporphyrin ( HPMA - ZnPP ) and evaluated its application for tumor detection by imaging and treatment by light exposure using in mouse sarcoma model .
 Chemical: N - ( 2 - hydroxypropyl ) methacrylamide; Chemical: zinc protoporphyrin; Chemical: HPMA; Chemical: ZnPP
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: N - ( 2 - hydroxypropyl ) methacrylamide; Chemical: zinc protoporphyrin; Chemical: HPMA; Chemical: ZnPP