4648
In brief , a non - woven TiO ( 2 ) fabric used as an anode and a platinum cathode were immersed in an E . coli suspension in which a positive potential was applied to TiO ( 2 ) concomitant with ultrasound ( US ) irradiation .
 Chemical: TiO ( 2 ); Chemical: platinum; Chemical: TiO ( 2 )
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: TiO ( 2 ); Chemical: platinum; Chemical: TiO ( 2 )