9446
The tight adsorption of the conjugate to the model surface corresponded with its ability to bind vancomycin - susceptible Staphylococcus aureus bacterial cells in vitro as imaged by confocal fluorescent microscopy .
 vancomycin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 vancomycin