28556
Cellular processes , such as adhesion , proliferation , spreading , migration , and differentiation , can be controlled within degradable , cell - compatible hydrogels with temporal tuning of biochemical or biophysical cues , such as growth factor presentation or hydrogel stiffness .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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