functionalized with the collagen mimetic peptide GFOGER and cross-linked with protease
degradable peptides. Bacteriophage release: A bacteriophage mixture of ɸPaer4, ɸPaer14,
ɸPaer22, and ɸW2005A was labeled with AlexaFluor 488 and encapsulated in PEG
hydrogels cross-linked with VPM, GPQ-W, or PEG-dithiol. Hydrogels were swollen in DPBS
or 2U/mL collagenase and fluorescence of the swelling supernatant was measured.