Polymers and Their Physically Crosslinked Hydrogels by Freeze-Thaw Technique

Bulk erosion takes place when water molecules infuse into the bulk of the matrix at a faster velocity than erosion, consequently displaying complex degradation/ erosion kinetics. Majority of the biodegradable polymers used in drug delivery undergo bulk erosion. Nevertheless employment of nanoparticle or microparticle formulations acquiring massive surface areas results in bulk- and surface-eroding materials that display similar erosion kinetics. 

2 Polymers and Their Physically Crosslinked Hydrogels by Freeze-Thaw Technique 

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