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The optoplasmonic molecules were generated through a guided self - assembly strategy in which the OMs were immobilized in binding sites generated by quartz ( SiO2 ) or silicon posts that contained plasmonic nanoantennas on their tips .
 Chemical: quartz; Chemical: SiO2; Chemical: silicon
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: quartz; Chemical: SiO2; Chemical: silicon