4792
IsoDGR - tagged albumin binds tumor vessels and can be exploited as a carrier for the preparation of tumor vasculature - selective nanomedicines , such as gold nanoparticles ( Au ) carrying tumor necrosis factor alpha ( TNF ) , a potent vascular damaging agent .
 Chemical: Au
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: Au