29947
We present single - ion - channel recordings performed with biomimetic lipid membranes which are directly attached to the surface of a complementary metal - oxide - semiconductor ( CMOS ) preamplifier chip .
 Chemical: metal - oxide
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: metal - oxide