14143
We designed and screened minimal peptide motifs whose conjugates with polyethylene glycol interact with heparin to form non - covalent hydrogels .
 Chemical: polyethylene glycol
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: polyethylene glycol