11830
A series of surface characterizations and mechanical tests were performed to reveal the static and dynamic properties of PDA films coated on glass , polydimethylsiloxane ( PDMS ) , and epoxy .
 Chemical: PDA; Chemical: polydimethylsiloxane; Chemical: PDMS; Chemical: epoxy
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: PDA; Chemical: polydimethylsiloxane; Chemical: PDMS; Chemical: epoxy