13611
Natural ( fluid ) lipid bilayers were incorporated together with membrane - bound proteins by lithographically polymerizing DiynePC / DiynePE bilayers .
 DiynePC, DiynePE
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 DiynePC, DiynePE