16797
Enantioselective binding properties of sterically rigid DNA probes such as the ruthenium complexes could find applications for targeting nucleic acids , e . g . , to inhibit transcription in therapeutic context such as treatment of malaria or cancer .
 ruthenium
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ruthenium