4857
1 . The SureTran (TM) matrix is a novel method facilitating short - term maintenance of fresh primary hepatocyte cellular function and offers the potential use of primary cells " as fresh " for several days post isolation .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None