23345
Under a mechanical deformation , the surface becomes specifically interactive to streptavidin , biotin antibodies , or adherent for cells , the interactions both for proteins and cells being fully reversible by stretching / unstretching , revealing a reversible exposure process of the ligands .
 Chemical: biotin
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: biotin