1. name at least four mechanisms that may hold a hydrogeltogether without covalent bonds? In other words, physicalcrosslinking?
2. provide 2 examples on how pH sensitive polymers/hydrogels maybe useful in biomedical field?
Please provide detain explanation how pH changed in human bodyand how the polymer in response to such change?
3. Why do think we need to incorporate cell instructive peptide(such as RGD) into PEG hydrogel
4. What are the two major degradable strategy in hydrogel?
What are the chemical components of normal enzymatic degradablecrosslinker? Do you know why?