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Intracellular drug release from curcumin - loaded PLGA nanoparticles induces G2 / M block in breast cancer cells .
 Chemical: curcumin; Chemical: PLGA
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: curcumin; Chemical: PLGA