1536
The current study explores a new strategy to incorporate single wall carbon nanotubes ( SWNTs ) / doped SWNTs as carrier modules in target - specific administration of antitubercular chemotherapeutics through covalent and noncovalent functionalization onto the nanotube sidewall .
 Chemical: carbon
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: carbon